Accuracy & Stability Improvements • **Age Accuracy Fix**: Your MyBioAge Index now correctly reflects your current age. If you noticed the comparison showing the wrong age (e.g., "vs 35" when you're older), this has been fixed and your index will automatically recalculate. • **Improved Stability**: Fixed an issue that could cause the app to crash during background health data syncs. Note: Your health data remains 100% private and on-device.

Small Bug Fixes and Improvements

New Key Metrics: Stress Resilience & Circadian Alignment Two New Health Metrics We've added two powerful new metrics to help you understand your body's stress response and daily rhythm alignment: • **Stress Resilience** (0-100): Measures how well your body handles and recovers from stress. Combines HRV patterns, recovery trends, sleep quality, and activity balance to give you a comprehensive view of your stress adaptation capacity. • **Circadian Alignment** (0-100): Tracks how well your daily rhythms align with your body's natural clock. Analyzes sleep timing consistency, wake patterns, temperature rhythms, and activity timing to score your circadian health. Redesigned Dashboard • **Standalone Recovery Ring**: Recovery Capacity now displays as a prominent standalone ring at the top of Key Metrics • **Training Load Card**: Full training load visualization with zone indicator in its own dedicated card • **Insight Row Cards**: Stress Resilience and Circadian Alignment displayed as compact, color-coded row cards for quick status checks • **Cleaner Layout**: Removed "Insights" heading for a more streamlined dashboard experience Detailed Metric Views Each new metric includes a comprehensive detail view: • **Score with Status**: Large score display with Ready/Moderate/Limited status • **"What is..." Dropdown**: Educational explanation of what the metric measures • **Component Breakdown**: See exactly which signals contribute to your score (HRV patterns, sleep quality, temperature stability, etc.) • **Trend Charts**: 14-day, 3-month, and 6-month trend visualization with segmented picker • **Personalized Guidance**: Actionable recommendations based on your current score Enhanced Trend Visualization • **Training Load Trends**: Now shows colored zone backgrounds (red/yellow/green) in trend charts for instant visual feedback • **Recovery Trends**: Zone-colored backgrounds showing Ready/Moderate/Limited ranges • **Consistent Design**: All four key metrics (Recovery, Training Load, Stress Resilience, Circadian Alignment) now share the same trend chart design with 14-day, 3-month, and 6-month views Apple Watch Updates • **New Metrics on Wrist**: Stress Resilience and Circadian Alignment now sync to your Apple Watch • **Color-Coded Status**: Each metric displays with appropriate status colors (green/yellow/red) • **Compact Display**: All four key metrics visible in the metrics section AI Coach Integration • **Full Metric Access**: AI Coach now has complete access to Stress Resilience and Circadian Alignment data • **Ask Questions**: "How's my stress resilience?" or "Is my circadian rhythm healthy?" now get personalized answers • **Trend Analysis**: AI can analyze your stress and circadian patterns over time Debug & Developer Tools • **Extended Debug Report**: Stress Resilience and Circadian Alignment now included in the debug metrics report • **Component Visibility**: See detailed breakdowns of all contributing signals in the debug view • **Copy/Share Support**: New metrics included in the shareable debug report Note: Your health data remains 100% private and on-device.

Version 1.0.18 Smarter Metrics, Improved Accuracy, Deeper Insights Extended 6-Month Health History • MyBioAge Index™ now analyzes 24 weeks (6 months) of health data instead of 14 weeks • Longer history provides more stable biological age calculations and better trend detection • Pace of Aging now uses regression-based analysis across two time horizons, 12 Weeks, and 24 Weeks • AI Coach has access to 24 weeks of weekly trends for richer health insights More Precise Age Calculations • Your biological age now uses your exact birth date for more accurate results Better Day-to-Day Recovery and Strain Calculations • Training Load and Recovery scores have been refined for better day-to-day accuracy Improved Metric Detail Views • 24-Week Summary now displays High, Average, and Low values for all metrics • Blood Pressure detail view now includes High/Average/Low summary like other metrics • Cleaner, more consistent UI across all metric detail screens Bug Fix • MyBioAge Index™ was calculated correctly but displaying with an offset resulting in lots of users seeing incorrect results - this was a visual bug not a data bug so none of your metrics have been impacted

AI Coach Enhancements & Apple Watch Improvements Enhanced AI Coach • Added Training Load/Strain and Sleep Regularity metrics to AI Coach knowledge base • AI Coach now has complete awareness of all Overview dashboard metrics • Improved download reliability with better progress tracking and error messages • Fixed initial display bug where the MyBioAge delta briefly showed incorrect values on app launch Apple Watch Improvements • Simplified Watch dashboard to a single scrollable view showing Index, Recovery, and Training Load • Removed swipe navigation for a more streamlined experience • All key metrics now visible at a glance without navigation Note: Your health data remains 100% private and on-device.

Extended Device Compatibility Fixed Advanced AI Model Access The Advanced (8B) AI model is now correctly available on all 8GB devices. Previously, some users with iPhone 16 Pro, iPhone 16 Pro Max devices were incorrectly shown that the Advanced model was unavailable due to an unreliable memory detection method. Improved Device Detection • Added explicit support for all 8GB RAM devices including the entire iPhone 16 lineup • iPhone 15 Pro, iPhone 15 Pro Max, iPhone 16, iPhone 16 Plus, iPhone 16 Pro, iPhone 16 Pro Max, and iPhone 16e now correctly support both AI models • Fallback to for future devices ensures forward compatibility Note: Your health data remains 100% private and on-device.

AI Coach Stability & Device Compatibility Improved AI Model Compatibility The Advanced (8B) AI model now automatically detects device compatibility before download. If your device doesn't have enough memory to run the larger model reliably, you'll see a clear message recommending the 3B model instead—preventing crashes and ensuring a smooth experience. Smarter Model Selection • Devices with 8GB+ RAM (iPhone 15 Pro and newer) can use either AI model • Devices with less memory are guided to the Recommended (3B) model • If you previously downloaded the 8B model on an incompatible device, the app will automatically switch to the 3B model Enhanced Download Reliability • Improved detection of incomplete or corrupted model downloads • Clearer error messages when something goes wrong • Better guidance on how to resolve download issues Note: Your health data remains 100% private and on-device.

Pregnancy Support New Setting: Pregnancy Mode We've added specialized support for pregnant users in Settings > Medical Conditions. Pregnancy causes significant physiological changes that affect many health metrics—elevated heart rate, reduced HRV, sleep disruption, and more. Without adjustment, these normal pregnancy changes would incorrectly impact your biological age score. How It Works: When pregnancy mode is enabled, the app intelligently adjusts how metrics contribute to your Index: **Reduced Emphasis** (normal pregnancy changes won't hurt your score): • Resting Heart Rate – elevated RHR is expected • Heart Rate Variability – reduced variability is normal • VO₂max – relative capacity decreases with body changes • Sleep Duration – disruption is common • Respiratory Rate – slight increases expected • Wrist Temperature – elevated temps normal • Blood Pressure – highly variable during pregnancy **Emphasized Metrics** (still meaningful during pregnancy): • Recovery Capacity – recovery patterns remain informative • Active Energy – activity is still valuable • Walking Heart Rate – relative measure stays valid • Sleep Regularity – consistency still matters • Oxygen Saturation – stable metric **Visual Indicators:** • "Pregnancy-Adjusted" badge displays on your MyBioAge Index • Settings shows which metrics are adjusted • Can be combined with pacemaker mode if needed Note: Your health data remains 100% private and on-device.

Redesigned Key Metrics and Scoring Improvements Redesigned Key Metrics Display We've completely redesigned the Recovery and Training dashboard for clarity: - Single Recovery Ring: A clean ring visualisation with your recovery percentage displayed in the centre along with status (Ready/Moderate/Limited) - Training Load Zone Bar: Below the ring, see your training load ratio (e.g., '1.07x') with an intuitive zone indicator showing exactly where you fall on the spectrum - Consistent Detail Views: Both Recovery and Strain segments now share the same card layout with icon, title, status pill badge, score, and description Training Load Zone Colours: - Green (0.8x - 1.2x): Optimal training balance - Yellow (1.2x - 1.4x or 0.6x - 0.8x): Building or de-loading - Red (above 1.4x or below 0.6x): Overreaching or under-training Sleep Scoring Fix Fixed a calculation bug in sleep regularity that was incorrectly penalising users with consistent sleep patterns. Good sleep consistency now properly reduces your biological age. Improved Activity Norms Recalibrated Active Energy norms to reflect actual population data. The previous norms were unrealistically high, causing moderately active users to score poorly. Now, 600-800 kcal/day of activity scores around the 60th-70th percentile instead of below the 10th. Percentile Display Consistency All metrics now display percentiles uniformly-high percentile always means good health across ALL metrics. Previously, some 'lower is better' metrics like Wrist Temp showed confusing low percentiles even when performing well. Now inverted for display clarity. Neutral Blood Pressure Trends Blood pressure week-over-week changes now use neutral colors instead of green/red. This reflects the reality that BP increases or decreases can be good or bad depending on your baseline-context matters. Streamlined AI Chat Setup Removed the separate first-time setup modal for AI Chat. New users now see a clear 'Download AI Package' button directly in the chat interface for a simpler onboarding experience. Note: Your health data remains 100% private and on-device.

AI Model Download Improvements Simplified AI Package Selection We've redesigned the AI download experience with a cleaner, package-based approach. Now you simply choose between two options: • **Recommended Package (~2 GB)**: Fast responses, great for most users • **Advanced Package (~5 GB)**: More detailed answers, best on newer iPhones Both packages include everything you need—no separate downloads to manage. Improvements: • New package selection screen when downloading AI models • Cleaner Settings UI showing your active package and storage used • Switch between packages anytime if both are installed • Reliable downloads with accurate real-time progress tracking • Better error handling with clear retry options Note: Keep the app open during model downloads for best results. Your health data remains 100% private and on-device.

Version 1.0.11 AI Coach & Streamlined Recovery Dashboard Ask Your Health Data Anything Now you can have a conversation with your health data. Ask questions, get insights, and understand your wellness trends; all with the new AI Coach Assistant that runs entirely on your iPhone. What's New: • AI Coach: Ask questions like "What's my current VO₂max?" or "Why did my HRV drop?" and get instant, personalized answers based on your actual health history. No more guessing what your numbers mean. • Weekly Summaries: Ask "What changed this week?" to get an easy-to-understand breakdown of your key health trends in natural language. Perfect for Monday morning check-ins. • Personalized Advice: The AI knows your health profile, whether you're tracking with a pacemaker, using blood pressure monitoring, or focusing on core metrics. Advice tailored to you, not generic tips from the internet. • Choose Your Model Size: Pick between Compact (1.8GB, faster) or Advanced (4.9GB, more detailed) based on your device and needs. Download takes a few minutes on WiFi. • Dark App Icon: Added a high-contrast dark variant so the MyBioAge icon looks right at home on AMOLED-friendly setups. Choose it from iOS Settings ▸ MyBioAge ▸ Alternate App Icon to match your system theme or night-focused Home Screen. • Complete Privacy: Your health data never leaves your iPhone. The AI runs entirely on your device, no internet connection needed for chat. No analytics, no tracking, no cloud servers. Ever. Streamlined Recovery Dashboard: We've refined the Key Metrics visualization to focus on what matters most—Recovery and Strain. • Simplified Rings: Now displays two rings instead of three (Recovery outer, Strain inner) for cleaner visualization and faster comprehension. • Recovery Signals Card: New detailed breakdown showing the 4 signals that contribute to your Recovery score: - Immediate Recovery (post-workout HR drop) - Overnight Recovery (sleep HR vs baseline) - HRV Trend (7-day vs 21-day comparison) - Consistency (recovery stability over time) • Reframed Strain Display: Training Load is now the primary metric with a prominent visual display: - Large Load Ratio display (e.g., "1.07×") with clear status labels - Visual zone indicator showing optimal (0.8-1.2×), building, deloading, or overreaching zones - Color-coded zones for instant comprehension • Strain Signals Card: New detailed breakdown showing the 4 signals that contribute to your Strain adaptation: - HRV Trend (autonomic balance with ↑/↓ indicators) - Activity Pattern (training consistency) - Temp Stability (circadian rhythm health) - Oxygen Health (SpO2 readings quality) • Confidence Cards: "Data Quality" renamed to "Confidence" throughout for consistency with the MyBioAge Index terminology. How AI Coach Works: 1. Tap the AI Chat button on your dashboard (it has a subtle animation!) 2. Download your preferred AI model (one-time setup, takes 5-10 minutes) 3. Start asking questions, the AI understands all 12 metrics in your MyBioAge Index 4. Get instant insights based on your actual health data, not generic advice AI Features: - Instant answers to health questions - Weekly change summaries in plain language - Sleep improvement suggestions - VO₂max and fitness insights - HRV recovery guidance - Context about sudden changes - Comparison to your baselines Privacy & Control: You control everything. Download the AI when you're ready. Switch model sizes in Settings. Remove it anytime to reclaim storage. Your conversations stay on your device, nothing syncs to the cloud. Requirements: iOS 26 or later, at least 2GB free storage for Compact model, 5GB for Advanced model. Works best on iPhone 12 or newer, advanced model works best with latest iPhone models. Note: This is a wellness feature, not medical advice. The AI focuses on fitness and lifestyle insights based on your tracked health metrics.

Recovery Metrics Dashboard New Key Metrics Section Your dashboard now features a stunning Activity Rings-inspired visualization displaying three critical recovery and readiness indicators—similar to Whoop's recovery score but with enhanced visual presentation and additional metrics. Three Core Metrics: • Recovery Capacity (0-100%): Comprehensive cardiovascular recovery combining immediate post-exercise recovery, extended recovery patterns, overnight HR recovery, HRV trends, and recovery consistency • Readiness (0-100%): Data coverage and sufficiency metric showing whether you have enough quality data for an accurate MyBioAge Index • Strain Balance (0-100%): Training load vs recovery balance to prevent overtraining and optimize training readiness Elegant Rings Visualization: • Concentric rings inspired by Apple's Activity Rings • Outer ring (green/yellow/red): Recovery Capacity • Middle ring (blue/yellow/red): Readiness • Inner ring (orange/yellow/red): Strain Balance • Clean empty center with scores shown in legend below • Smooth animations and color-coded status indicators Detailed Breakdown View: Tap the rings to access comprehensive detail views for each metric: • Component analysis with weighted breakdowns • Data quality indicators showing coverage and confidence • Personalized guidance and recommendations • Missing data gaps with collection hints • Historical context and trends Apple Watch Enhancement: The watch app now features a two-page swipeable interface: • Page 1: Main dashboard with quick metric pills (Recovery, Readiness, Strain at a glance) • Page 2: Full rings visualization with detailed metric cards • Swipe gesture with page indicators for natural navigation • Larger rings (140px) for better visibility on wrist • Color-coded status and offline support Debug Confidence Report Update: The debug report now includes a dedicated Recovery Metrics section showing detailed scoring, coverage, confidence, and component breakdowns for all three new metrics. Impact: These new metrics provide actionable daily guidance on training readiness, help you understand data quality at a glance, and prevent overtraining by monitoring the balance between workout load and recovery signals. Note: Your health data remains 100% private and on-device.

Apple Watch App Your biological age is now just a glance away! The new MyBioAge Apple Watch app displays your Index on your wrist with automatic sync from your iPhone. Key Features: • Beautiful dial showing your bio age, age delta, and confidence • Real-time sync via WatchConnectivity when iPhone is nearby • Offline caching—view your data even when iPhone is out of range • Connection status and last update timestamp • Manual refresh button for on-demand updates • Privacy-first: Bluetooth-only, no internet required The watch app is intentionally simple—a single screen focused on your most important metric. All calculations happen on iPhone; the watch beautifully displays the result. Note: Your health data remains 100% private and on-device. Watch communication uses Bluetooth only.

Bug Fix: Temperature Delta Conversion Critical Temperature Conversion Fix Fixed a bug that caused wrist temperature week-over-week changes to display incorrect values for Imperial unit users (showing ~32°F instead of ~0.9°F). Temperature deltas now use the correct conversion formula without the offset. Improvements: • Accurate temperature deltas in Weekly Digest • Corrected chart Y-axis scales for Imperial users • Fixed baseline range displays • Updated sparkline charts with proper conversions • Dynamic unit display in metric descriptions Impact: Imperial users will now see accurate temperature values throughout the app, with correct conversions in all charts and week-over-week comparisons. Note: Your health data remains 100% private and on-device.

Weekly Digest Enhancement & Version Management Pace of Aging in Weekly Digest Your Weekly Digest now features Pace of Aging prominently, positioned right after your Index summary. See at a glance whether you're aging slower, normal, or faster than chronological time with color-coded status indicators and 4-week comparisons. Improved Version Management Version and build numbers now follow proper iOS conventions with no hardcoding—all version information is dynamically read from Bundle at runtime for cleaner, more maintainable code. Note: Your health data remains 100% private and on-device.

UI & Accuracy Polish Critical Orientation Fixes Fixed critical scoring bugs where several metrics were treated with incorrect orientation: - Blood Pressure: Now correctly scored as "lower is better" (lower BP de-ages you) - Sleep Regularity: Now correctly scored as "higher is better" (higher SRI de-ages you) - Strain vs Recovery: Now correctly scored as "higher is better" (better balance de-ages you) These fixes can improve your Index by 0.5-0.7 years if you have healthy values for these metrics. The app now automatically detects orientation logic updates and recalculates all metrics on first launch after the update—no manual re-sync needed. Percentile Display Consistency All percentiles are now displayed consistently so high percentile always means good performance, regardless of whether the underlying metric is "higher is better" or "lower is better": - Before: Resting HR at p11 (excellent low HR, but looked bad) - After: Resting HR at p89 (clearly shows top 11% performance) This applies to Resting HR, Walking HR, Blood Pressure Systolic, and Blood Pressure Diastolic. Now you can easily compare performance across all metrics using a consistent scale where high percentile = good health. Automatic Migration System Added an orientation version tracking system that automatically detects when metric scoring logic changes and triggers a full recalculation. When you update to this version, the app will: 1. Detect the orientation logic update 2. Clear cached calculations 3. Recalculate all metrics with the correct orientation 4. Update your Index automatically No manual intervention required—just update and launch the app. Per-Metric Confidence Display The Confidence Report now shows accurate confidence percentages for all metrics, including Blood Pressure. Previously, BP showed 100% confidence even with limited data; it now correctly displays the actual confidence (e.g., 35% with only 2 samples). This transparency helps you understand data quality at a glance. Version & Build Information The Confidence Report modal now displays the app version and build number at the top (e.g., "Version 1.0.6 (Build 1)"), making it easier to reference when troubleshooting or providing feedback. Advanced Metric Icon Blood Pressure metrics now display a red heart icon text badge in the Contributing Metrics list, providing a cleaner, more consistent visual experience that matches the Advanced Precision badge styling. Readiness Report Enhancement The Readiness Report now tracks Blood Pressure status, showing whether you're actively monitoring BP and how many recent readings you have. BP is treated as an optional advanced metric with 0% weight in readiness calculations, so it doesn't affect your overall readiness score. Impact: These refinements ensure more accurate biological age estimates for BP users, intuitive percentile interpretation across all metrics, better transparency around data quality, and a more polished user experience. The BP orientation fix may improve your Index by 0.1-0.3 years if you have lower-than-average blood pressure. Note: Your health data remains 100% private and on-device.

Scientific Rebalancing and Recovery Enhancement Unified Recovery Capacity We introduced a single Recovery Capacity metric that avoids redundant counting while giving a complete cardiovascular recovery view. It combines five signals: immediate post-exercise recovery, extended recovery patterns, overnight heart rate recovery, HRV trends, and recovery consistency. Result: more accurate biological age estimates without triple-counting overlapping data. Scientifically Rebalanced Weights Your MyBioAge Index now places more weight on proven predictors like VO2max, Sleep, and Resting HR, and less on weaker signals. Each metric includes an evidence strength note so your biological age emphasizes the most reliable indicators. Enhanced Blood Pressure Precision Blood pressure tracking now contributes with higher accuracy. When you track BP with an external monitor, Advanced Precision mode turns on automatically with 14-week smoothed trends for stable estimates. BP metrics are detected even when you are just starting to track them, so metric counts are correct. Pace of Aging See how fast you are aging relative to calendar time with Pace of Aging. View 4-week comparisons and 14-week rolling averages with color coding: green “less than 1.00x”, amber “1.00 to 1.05x”, red “greater than 1.05x”. This helps you understand your long-term trajectory. Pacemaker Support New medical setting for pacemaker users. The app excludes fixed HRV values and redistributes weight to other cardiovascular metrics so biological age stays accurate. Monday Morning Updates Weekly digest notifications now arrive Monday at 9:00 AM, covering complete Mon-Sun trends. Start the week with fresh insights into your biological age changes. Enhanced Data Quality All metrics now use confidence-based scoring with no fallback values. Missing data reduces confidence instead of using neutral placeholders, giving a truer view of data quality. Improved Debugging Tools The confidence debug report now shows the impact of all metrics on your Index (not just the top 5), sorted by magnitude. BP metrics without enough data are clearly marked as “MISSING FROM INDEX” in Contributing Metrics and shown with a circle for insufficient data in All Metrics Impact. This provides full transparency into how each metric affects biological age, including metrics that are being tracked but not yet contributing. Privacy Your health data remains 100% private and on device.

Added Metric AND Imperial measurement systems - On the next time you open the app, it will now try to recognise your preferred system based on your device region but if that doesn't match the system you want you can still go to Settings and which to the system you prefer manually.

Bug fix for the HR Recovery introduced in 1.0.2 - no data loss will occur and this update will resolve the inaccurate data.

Weekly Smoothing Update Your Index now updates weekly using 7-day averages for more stable, meaningful insights. All metrics display weekly trends (Monday-Sunday) instead of daily fluctuations. New Features: 14-week history charts for all metrics Week-over-week change tracking Improved calculation accuracy Social media links in Settings Improvements: Better handling of infrequent metrics More metrics contributing to your Index Enhanced confidence scoring Join our Reddit r/MyBioAge for feedback, tips and other insights!

Scoring Accuracy Improvements We've refined our biological age algorithm to be more accurate and research-aligned. Users with healthy metrics will now see scores that better reflect their wellness efforts. More realistic age estimates aligned with scientific literature Improved sleep regularity scoring Better recognition of high activity levels Enhanced trend visualizations Note: Your health data remains 100% private and on-device.