Swimio: Swim Coach & Tracker
Workouts, Plans & Pace Clock
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
Take your swim training further with Swimio, the smart swim companion for iPhone and Apple Watch. Whether you're new to the pool or training for your next personal best, Swimio helps you build better swim workouts, track every session, and improve with clear, actionable insights.
More than a basic swim tracker, Swimio combines advanced Apple Watch swim tracking, personalized workout generation, and performance analysis in one focused experience. Track your swims automatically, review your progress in detail, and train with more structure, consistency, and purpose.
WHY SWIMIO
- Smart swim tracking with Apple Watch
- Personalized swim workouts based on your goals
- Clear post-swim analysis and progress insights
- Built-in pace clock and structured training support
- Apple Health sync for a complete fitness picture
TRACK EVERY SWIM WITH APPLE WATCH
Swimio automatically records the metrics that matter most during your pool workouts, so you can stay focused on swimming.
- Laps
- Distance
- Pace
- Stroke type
- Stroke count
- SWOLF
- Heart rate
- Calories
PERSONALIZED SWIM WORKOUTS
Generate swim workouts tailored to your level, training focus, and goals. Whether you want to improve endurance, technique, speed, or consistency, Swimio helps you create sessions that fit your needs.
- Workout generation based on your goals
- Structured sessions for different skill levels
- Training variety to keep workouts engaging
- Smarter planning for more purposeful practice
DETAILED SWIM ANALYSIS
Understand your performance after every workout with clear charts, trends, and swim stats designed to help you improve over time.
- Review pace and distance trends
- Monitor stroke efficiency
- Track performance over time
- Identify where you’re improving
DESIGNED FOR SWIMMERS
Swimio is built for swimmers who want more than lap counting. It’s a swim tracker, workout planner, pace clock, and smart training companion designed to make every session more useful.
- Great for fitness swimmers and performance-focused athletes
- Clean, focused experience on iPhone and Apple Watch
- Easy sync with Apple Health
SWIMIO PRO
Upgrade to Swimio Pro and unlock even more powerful training tools.
- Unlimited personalized workout generation
- Advanced swim analysis
- Premium workouts and future training content
Train smarter, stay consistent, and make every lap count with Swimio.
Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
more Apple Health sync now checks that workouts have been saved online before confirming recovery.
The Diagnostic centre can also update monthly totals and sync state. Confirmed pools stay protected during updates, with clearer messages when saving is still pending.
1.21.7 Oct 10
Health Sync is now easier to check and repair.
• Compare swimming workouts in Apple Health, on this iPhone and online.
• Safely upload missing swims that are still available in Apple Health, without deleting online history.
• After updating, Swimio runs a one-time check when you open the app and your account, Health access and internet connection are available.
• Improved sign-in startup reliability and Apple Watch-to-iPhone sync handling.
Workouts that are no longer available to Swimio in Apple Health cannot be reconstructed.
1.21.6 Oct 9
Swimio no longer closes unexpectedly a few seconds after it opens.
Apple Watch no longer keeps asking for Apple Health access you have already given, so pool swims, scheduled workouts and Quick Start begin again. If Health access really is missing, the Watch names the one setting to turn on: Workouts, under Allow Swimio to Write.
iPhone and Apple Watch stay in step more reliably. Scheduled workouts reach the Watch even while the iPhone app is in the background, a newer schedule is never thrown away as out of date, Pro features stay unlocked on the Watch, and signing out clears your workouts from it.
1.21.5 Oct 2
Once Repeat On has been enabled for your account, it is now ready when you start a free pool swim from Apple Watch — you no longer need to open Swimio on iPhone before each workout.
The Watch keeps the last confirmed setting through a temporary connection delay and applies any pending update before the workout begins. This fixes the cold-start issue that could make the Repeat On screen disappear after updating or reopening Swimio.
Turning the feature off, signing out or switching accounts still removes access as expected. Planned workouts and open-water swims keep their existing experience.
1.21.4 Sep 15
Once Repeat On has been enabled for your account, it is now ready when you start a free pool swim from Apple Watch — you no longer need to open Swimio on iPhone before each workout.
The Watch keeps the last confirmed setting through a temporary connection delay and applies any pending update before the workout begins. This fixes the cold-start issue that could make the Repeat On screen disappear after updating or reopening Swimio.
Turning the feature off, signing out or switching accounts still removes access as expected. Planned workouts and open-water swims keep their existing experience.
1.21.3 Sep 4
This update improves how Apple Watch recognises wall stops and push-offs during pool swims, so rest and repeat timing is more reliable. It also includes minor stability fixes.
1.21.2 Sep 3
This update fixes Repeat On reliability for unplanned pool swims, adds a Pace Clock option for Always-On Display, supports a single pace-clock hand, and accepts a comma when entering pool length.
1.21.1 Sep 2
Smart Import now works from the Share Sheet and lets you preview the extracted text before importing. Health sync is more reliable, with clearer permission recovery and a new Diagnostics centre for your workout connections. We’ve also refined the Team, Coach and training screens for a clearer, more consistent flow.
1.21.0 Aug 30
Swimio plans ahead now.
TRAINING PLANS THAT ADAPT
Tell Swimio your goal and the days you can swim, and it lays out every session for the next 8 or 12 weeks. Move one session and the rest of the week adjusts around it — no rebuilding, no starting over.
A COACH THAT READS YOUR FORM
Swimio now reads your readiness, training load and consistency across the last 28 days, and shapes what it suggests next around how you have actually been swimming rather than a generic template.
WIDGETS AND CONTROLS
Keep your next session, your weekly consistency and your plan progress on the Home Screen and Lock Screen. Control Centre shortcuts drop you straight into a swim.
SMART IMPORT READS FILES
Hand Swimio a PDF, a spreadsheet or a photo of a written set — or share one straight from another app. It reads the sets on your iPhone first, so you see what it found before a credit is spent.
SET THE TERMS PER WORKOUT
Change strokes and equipment for a single session without touching your profile.
FASTER FROM THE FIRST TAP
Swimio opens and fills in noticeably faster, and your dashboard no longer waits on everything at once.
Also in this release: two-way settings sync with Apple Watch, training blocks that no longer finish on a recovery week, and a long list of smaller fixes across Home, Teams and Personal Bests.
1.20.0 Aug 11
What’s New:
- Performance Enhancements: We’ve optimized under-the-hood processes to make the app load faster and run more efficiently.
- Bug Fixes: Resolved several minor bugs and unexpected crashes reported by our community to improve overall stability.
- UI Refinements: Small tweaks to the user interface for a cleaner look and better navigation.
Love the app? Please consider leaving us a review in the App Store! Your feedback keeps our team motivated and helps us make the app even better
1.19.2 Jul 8
Here's what we improved in this release:
- Improved Strava Integration with the Strava swimming stats in the Strava configuration page
- Improved performances and general fixes
1.19.1 Jul 1
Version 1.19.0 brings a major refresh to the Apple Watch experience.
Customize your watch workout pages with a richer widget catalog, colors, top-left elements, and improved display density controls. Text workouts now scale better on Apple Watch, previews are clearer and scroll correctly, and layout editing feels more reliable.
We also refined the Home and Personal Bests screens with cleaner cards, better typography, updated progress visuals, and many fixes across the app.
1.19.0 Jul 1
Swimio is getting smarter, clearer, and easier to train with.
This update improves AI Coach with more practical workout guidance based on your swimmer profile, pool length, zones, equipment, and recent training context.
You can now customize your Apple Watch workout UI, choosing which workout pages and training details appear on your wrist so the session matches how you swim.
We also improved workout creation and editing, generated and imported sessions, team and pool reliability, Strava sync, and overall performance across iPhone and Apple Watch.
1.18.1 Jun 25
Swimio is getting smarter, clearer, and easier to train with.
This update improves AI Coach with more practical workout guidance based on your swimmer profile, pool length, zones, equipment, and recent training context.
You can now customize your Apple Watch workout UI, choosing which workout pages and training details appear on your wrist so the session matches how you swim.
We also improved workout creation and editing, generated and imported sessions, team and pool reliability, Strava sync, and overall performance across iPhone and Apple Watch.
1.18.0 Jun 23
Fix a bug in the change-email flow.
1.17.2 Jun 13
Fixes and improvements to the Watch App and Strava integration
1.17.1 Jun 12
What’s new in this update:
- We refined the Teams and Pools experience to make browsing and managing your swimming communities smoother and clearer.
- Team and pool pages now feel more stable while scrolling, with improved header cards and cleaner visuals.
- Team discovery cards are easier to read, with larger names, descriptions, and badges.
- Completed swims on Home are also better organized, with clearer summaries and a separate list of completed workouts.
- We also improved team management reliability, including better handling when deleting teams.
1.17.0 Jun 10
What’s New in Swimio 1.16.0
This update makes workouts easier to follow, organize, and create.
- New Apple Watch workout guide with clearer exercise progress, pace targets, zone guidance, coach notes, equipment, and next-set previews.
- Customize which workout pages appear on Apple Watch and reorder them to match how you train.
- Smarter AI workout requests: describe the session you want in natural language and Swimio will use your profile, PBs, pool, zones, and preferences.
- Cleaner Workout Library with faster search and filters for planned, completed, saved, imported, assigned, coach, pool, open water, and personal workouts.
- Improved workout sharing, structure, and pacing details for a smoother training flow across iPhone and Apple Watch.
- We also included reliability and polish improvements throughout the app.
1.16.0 May 25
What’s new:
• AI Coach now opens session customization before generating your next workout, with clearer distance, duration, effort, stroke, zone, and send-off controls.
• Home has been redesigned to make today’s swim, completed sessions, team workouts, team news, and weekly performance easier to read.
• Team workouts now handle completion more reliably, with cleaner completed states and improved team news access.
• Workout generation and Smart Import are more reliable, with cleaner structure and formatting.
• Pace analysis is more accurate, especially when comparing personal-best pace across different distances and split contexts.
This update also includes UI polish, reliability improvements, and bug fixes.
1.15.1 May 14
What's New in Swimio 1.14.2:
AI COACH WORKOUT INSIGHTS
Get personalized coaching feedback after every completed swim. The AI Coach analyzes your pace, stroke data, heart rate, and recent training to highlight what went well, areas to improve, and recommendations for your next session.
SMART PERSONAL BEST SUGGESTIONS
Swimio now analyzes your recent workouts to suggest personal best times. When editing your PBs, you'll see intelligent suggestions based on your actual swimming data — making it easier to track your progress across all strokes and distances.
PACE TRENDS IN AUTO SETS
Each auto set in your workout detail now shows how your pace compares to your personal bests. Instantly see which splits were faster, matching, or slower than your PB pace with color-coded trend badges.
FLEXIBLE TRAINING ZONE SYSTEMS
Choose between Standard zones (Z1–Z5) or Swim Intensity zones (A1–C2) in Settings. Both systems work across workout building, AI generation, and Apple Watch labels. A built-in zone guide helps you pick the right effort level for every exercise.
SMOOTHER ONBOARDING
A refreshed onboarding experience helps you get started faster. Build your first AI workout, take a full tour, or skip right into your training.
PERFORMANCE IMPROVEMENTS
• Faster workout detail loading
• Improved sync reliability between iPhone and Apple Watch
• Enhanced AI Coach response accuracy
Bug fixes and stability improvements.
1.14.2 Apr 23
General improvements and bug fixes.
1.14.1 Apr 18
What's New
- Redesigned AI Coach dashboard with daily insight, next action, and workout recommendation
- Training charts now cover 28 days for better context
- New Stroke Profile card in the AI Coach
- Cleaner Today's Brief — daily summary in a single card
- Pool channels now support posts and events
- Team and pool notifications unified into one inbox
- Smart Import now shows remaining credits
- Fixed workout links not persisting after app restart
- Performance improvements and visual polish
1.14.0 Apr 4
This update focuses on a cleaner experience, better readability, and smoother workout planning.
- Refreshed UI across Home, Workouts, Plan, and AI Coach for a more consistent look and feel.
- Improved dashboard cards layout, spacing, and chart balance for easier at-a-glance stats.
- Enhanced planned/recent workout flows with improved cards and interactions.
- Reworked Workout History analytics cards
- Improved Smart Import UI and flow for faster workout creation.
- Updated AI Coach wizard UI (cards, typography, buttons, and interaction polish).
- Better localization support, including onboarding and key labels.
- General performance, stability, and usability improvements throughout the app.
1.13.1 Mar 5
What’s New
Teams are here: a new way to connect, train, and progress together.
Teams
- Create or join a team
- See teammates and team activity
- Compare performance with team-focused stats
- Public Profile updates
- Assign workouts to the team
Improved PB comparison
- Refined stats
- Cleaner Milestones and Consistency Heatmap sections
Nearby Pools
- Discover nearby pools more easily
- Create or join a team from pool-related views
1.13.0 Feb 25
Here's what we changed:
- Fix an issue with settings sync for PRO users
1.12.5 Jan 1
Apple Health sync now checks that workouts have been saved online before confirming recovery.
The Diagnostic centre can also update monthly totals and sync state. Confirmed pools stay protected during updates, with clearer messages when saving is still pending.
more Version 1.21.7 Oct 10
Data Linked to You The following data may be collected and linked to your identity:
Health & Fitness Location Contact Info Identifiers Usage Data Data Not Linked to You The following data may be collected but it is not linked to your identity: