Substrata 1.8.1 is a small update. - Settings has a new Email Us row, and the Support and Privacy Policy links now open our new site, kynossstudios.com. - When Substrata asks for a rating, it now uses Apple's standard App Store prompt instead of our own star screen.

Substrata 1.8 is designed for iPhone Duo and for large text sizes. - Designed for iPhone Duo's inner display: the Dashboard, Log, Charts, Insights and Settings spread into side-by-side columns instead of one stretched list. - Open a pattern in Insights on the inner display and its chart sits right beside the list, with both readings plotted over the same days. - Log something on the inner display and a "Moves with this" panel shows what has tracked with it in your own data. Cycle and intimacy entries stay behind Face ID there too. - On the cover display, Quick Log labels wrap instead of being cut off, and close buttons stay visible when a sheet is scrolled. - A note you're typing stays in view when you fold or unfold. - At the largest text sizes, the Dashboard, Log and Charts rearrange so nothing is cut off, and row icons grow with your text. - Fixes for iOS 27, including sheets that could open with outdated content and the weekly summary opening twice.

Substrata 1.7 adds three new features and is a big reliability update. - New: widgets for your Home Screen and Lock Screen. Current Conditions shows noise level, pressure trend and an environmental summary; Quick Log records a headache in one tap, with Undo if it was a slip. - New: tap a prediction to see what matched, its track record for you, and something to try. - New: an optional weekly summary. Turn it on in Settings > Notifications, and a Sunday notification opens Your Week, seven days of your readings side by side. - Now fully translated into German, Spanish, French, Italian, Japanese and Brazilian Portuguese, including the doctor report. - Your whole history counts: patterns draw on every day you've tracked, not just the last 90, and Apple Watch data that syncs days late is still picked up. - A headache that runs past midnight stays on the Dashboard, and you can now set when it ended. - More careful statistics, and "Feeling OK" check-ins no longer count as headaches. - Face ID now covers every place your cycle and intimacy logs appear, including exports and share cards. - The doctor report includes your headache log, and CSV exports open cleanly in any spreadsheet. - Clearer VoiceOver labels, larger tap targets, a Dashboard that fits large text sizes and many smaller fixes.

Substrata now leads with headaches. Tap to log one from the Dashboard, then watch the patterns build as Substrata pairs each entry with the weather, sleep, and noise around it. Plus a sharper paywall, an honest motion-permission description, and dozens of smaller fixes across the app.

Listing copy and metadata refreshed so it's easier to find Substrata if you're tracking headaches, sleep, or weather-driven symptoms. Recompiled against the latest iOS SDK. No new permissions or features in this update.

New plans: monthly, annual, or one-time lifetime — all with a 7-day free trial on the subscriptions. Existing buyers keep premium access automatically. The paywall now has tier choice and a clear note about Apple Watch when it matters. Local Diagnostics under Settings shows what Substrata counts on your phone, opt-out anytime.

Rebuilt Settings: clearer sections, harmonized status across permissions and live data, and a new explainer for how Substrata handles your data. Restore Purchases is front and center, and you can wipe all your Substrata data in one place. Turning on cycle or intimacy tracking now walks you through the Apple Health permission first. One toggle in Preferences now controls every displayed unit, including temperature.

Substrata now offers opt-in period and intimacy logging - both on-device, biometric-gated, and never written to Apple Health. Cycle phase, daily flow, and symptoms add new dimensions to the correlation engine, with a 12-month phase heatmap and period prediction once two cycles are logged. Turn either on individually in Settings → Reproductive Health.

Substrata now speaks German, French, Italian, Spanish (Latin America), Portuguese (Brazil), Japanese, and British English. Numbers, dates, and units are locale-correct everywhere — including charts, exports, and widgets. AI-generated insight narratives and Siri shortcuts are localized too. Pick a measurement system (Metric, Imperial, or System default) in Settings.

Bug fixes.

-bug fixes

New: every morning, Substrata now scores the room you slept in, not just how you slept. Sleep Condition Score pairs with your sleep quality on the dashboard so you can read them together. Bedroom noise, temperature, humidity, and pressure stability all feed the score, and a "Bedroom-measured" badge shows when your Watch and phone measured the room directly. Premium adds a 14-night trend, plain-English tips for the nights that scored below comfort, a new Widget line for last night's room, and columns on the CSV and PDF exports for sharing with a clinician.

New welcome screen helps first-time users understand what Substrata does and how it works — right from the first launch.

New welcome screen helps first-time users understand what Substrata does and how it works — right from the first launch.

Bug fixes

See your conditions at a glance with new Home Screen, Lock Screen, and Live Activity widgets. Get notified when HRV drops, sleep quality falls, or pressure shifts match your historical patterns. Export your data as CSV or share weekly health-environment reports as images. Overlay any two metrics on a single chart to spot connections visually. Improved weather sync reliability. Better onboarding for new users. Full iPad sidebar navigation. Accessibility and reduce motion improvements throughout.

Track your mood and energy right from the dashboard — discover how your environment affects how you feel over time. On-device AI now explains your data patterns in plain English. Clear, personalized insight summaries you can share with your doctor. Spot-checks now classify your sound environment — traffic, nature, social, music — adding context that decibel readings alone can't capture. Updated app icon. Fixed an issue where free users could view all insights by dismiss-cycling.

Track your mood and energy right from the dashboard — discover how your environment affects how you feel over time. On-device AI now explains your data patterns in plain English. Clear, personalized insight summaries you can share with your doctor. Spot-checks now classify your sound environment — traffic, nature, social, music — adding context that decibel readings alone can't capture. Updated app icon. Fixed an issue where free users could view all insights by dismiss-cycling.