GarSync: Sports Data Sync2.12.1 - App Store

Bi-directional sync for 35+ sports apps | AI workout plans & smart coach

GarSync is the ultimate sports data hub and AI-powered training analysis platform built for endurance athletes (running, cycling, swimming, triathlon).

Break down data silos for good! Whether you use Garmin, Strava, Coros, Keep, Apple Health, Suunto, or Zepp, GarSync keeps your activities synced, backed up, and optimized with AI coaching pushed directly to your watch.

Key Features:

* Universal 35+ Sync: Deep integration with Garmin, Strava, Coros, Keep, Suunto, Intervals.icu, Zepp, NRC, Apple Health, and more, with smart bi-directional sync and duplicate detection.

* AI Training Plans: AI generates personalized workout plans based on your fitness goals and history. Pushes structured workout schedules directly to sports platforms (like Garmin) to sync with your watch.

* AI Coach Insights: Powered by sports LLMs and the TSB model (CTL/ATL/TSB), providing expert assessment of performance, fatigue, and recovery to prevent overtraining.

* FIT Smart Repair: Auto-fix data file defects - fill missing data zones, correct GPS track offsets, auto-lap, and adjust device names for flawless uploads.

* VDOT Running Analysis: Auto-evaluates running ability via classic VDOT formulas. Predicts 5K/10K/half/full marathon race times and provides targeted training pace zones.

* Critical Swim Speed (CSS): Analyze swimming capability with automated CSS pace tracking and Speed Matrix projections.

* Sensor Hardware Integration: Connect BLE heart rate monitors, cycling power meters, cadence sensors, and smart trainers (FTMS) to record dynamics parameters (ground contact time/vertical oscillation).

* Health & Privacy: Sync HRV, body battery, resting HR, and sleep. Auto NAS/SMB backups keep your data completely local and under your control.

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Why GarSync?
1. Complete AI Loop: AI training plans push directly to your watch while AI Coach analyzes recovery.
2. Unified Hub: Connect 35+ platforms in one place and eliminate vendor lock-in.
3. Fully Automated: Smart de-duplication and FIT auto-repair for zero-effort data flow.
4. True Privacy: Private NAS cloud backup ensures your data remains 100% under your control.

Disclaimer & Policy Compliance: GarSync is a sports performance analysis and data sync tool. It does not provide medical advice, diagnosis, or ECG screening. All sensor analytics are intended strictly for athletic training reference. Third-party platform names and logos are trademarks of their respective owners and are used solely for compatibility reference.

Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Version History Fixed: Coros Upload Failures. Some users recently couldn't upload their activities to Coros. This is now fixed and uploads work again. 2.12.1 6d ago * New: Voice control — system speech recognition & text-to-speech for any webpage; speak instead of type, hands-free during workouts
* Optimized: Pre-workout sensor window — connect/disconnect manually and clear bindings when picking devices
* Fixed: Social feed no longer gets stuck loading while scrolling — new posts keep loading
* Fixed: Running power no longer keeps loading with no records — now shows a "no running data" hint 2.12.0 Sep 28 * Optimized: More flexible WeChat login — log in on this device or scan a QR code with WeChat on another phone
* Optimized: Activity merging — much smaller files, merge large batches and 10,000+ km rides
* Fixed: Gem overcharges in sync/import/AI generation — auto-refund on failure
* Fixed: Huawei login captcha blank screen — SMS-first with captcha fallback
* Fixed: Xiaomi timezone & format parsing 2.11.0 Sep 19 * New: Free Garmin CN↔Global↔Coros sync
* New: Sync Pass & Pro plans — $0.99 budget sync per month & $4.99 pro AI coach
* New: Sports & run-group check-in — member approval, leaderboards, announcements & invite links
* New: Friend invites, athlete PB leaderboards & connection guides
* New: Migration wizard — direct account transfer & Huawei file import
* New: Login to Wechat by scanning QR code
* Optimized: One-tap group sharing, upgraded membership center & compact calendar 2.10.0 Sep 12 * New: AI multi-sport training plan (triathlon/duathlon)
* New: One-tap weekly schedule sync to Garmin/Coros calendar
* Fixed: VIP subscription renewal stability
* Fixed: Garmin re-login loop
* Optimized: Home & activity list animations, no more jank
* Optimized: Trends, reports, schedule load faster
* Optimized: Indoor workout intensity distribution chart
* Optimized: Training plan lifecycle operations
* Optimized: Period review sport recognition more accurate
* Optimized: Onboarding wizard simplified to 4 pages 2.9.0 Jul 30 * New: Huawei Health data source — 2-way activity sync, health metrics, smart import recovery
* New: Activity poster templates, 9 presets + custom layout
* New: Training settings grouped by sport; CSS swim analysis; more training zones
* Fixed: Gem deduction on zero-success sync, expired creds re-login, sync error i18n
* Fixed: Apple IAP verification, AI review duplicate calls, period selector day count
* Optimized: Training regen with smarter AI adjustments, AI Coach analysis 2.8.0 Jul 10 * New: Complete AI training PDCA loop — plan, train, review, adjust.
* New: Training cycle review — comprehensive run/ride/swim analysis with AI summaries. View historical reviews anytime.
* New: Training plan tracking — auto-match daily workouts. AI intelligently adjusts next week's plan based on performance.
* New: VDOT analysis — evaluate running ability, predict race times at all distances, view training pace zones.
* New: FIT data repair & coordinate correction — per-account toggles, auto whitelist detection, configurable in sync tasks.
* Fixed: Xingzhe platform review data blank & frequent disconnection.
* Optimized: Today page, weekly report, and health metrics display.
* Optimized: Outdoor cycling/running auto lap by distance with detailed per-lap metrics. 2.7.0 Jun 21 * New: AI Training Plan — personalized periodized plans with weekly workout details.
* New: AI Single Workout — generate structured workouts, push to watch.
* New: 7 preset training plan templates.
* New: AI Coach — before/after recovery comparison, more accurate data.
* New: Coros health data — sleep, HRV, body battery, resting HR.
* Fixed: TrainingPeaks sync restored.
* Optimized: Sport Hub — friend page, profile, publish reminders.
* Optimized: Today page loads much faster. 2.6.0 May 21 * New: Sport Hub — publish activities, like and interact.
* New: Local Scheduler — add workouts to calendar offline.
* New: Nike Run Club (NRC) data source support.
* Fixed: Route sync duplicate prompts, Garmin session expiry, weight sync stability.
* Fixed: Sync to HealthKit crash, Onelap activity wrong type, merged activity metrics error.
* Fixed: Cross-data source schedule failure.
* Fixed: Power meter connection drops and pedal analysis accuracy.
* Fixed: Virtual ride IF/TSS/NP display and warmup power ramp.
* Fixed: Workout auto-reads saved FTP value.
* Optimized: Multiple pages open faster with quick-access icon buttons.
* Optimized: Share poster with independent track/text color control. 2.5.0 May 11 * New: Weekly Training Load Summary for deep intensity and fitness trend analysis.
* New: Exercise Metrics Measurement Guide.
* Fixed: Compatibility with new Onelap OTM API.
* Fixed: Xiaomi login with SMS verification.
* Fixed: System power drain caused by residual Wakelock.
* Fixed: Healthkit data missing error.
* Optimized: GPS track auto-correction for China domestic bike computers.
* Optimized: Share poster with JPG. 2.4.0 Apr 28 * New: Track monthly/yearly trends for VO2 Max, FTP, and NP.
* Enhanced: Charts in activity detail page.
* Optimized: Quietly skips unsupported items for better efficiency.
* Optimized: Screen wake guard for long tasks and improved outdoor sync.
* Optimized: Smart file de-duplication to save phone storage.
* Improved: Xingzhe FIT sync and cadence from power data.
* Fixes: Resolved Garmin special character naming and sync warning loops.
* UX: Improved Sudoku visual experience. 2.3.0 Apr 20 * Improved Garmin workout sync accuracy with original %FTP support.
* Fixed workout power errors when importing from Intervals.icu/professional platforms.
* Added support for syncing body weight data from Health platforms to Garmin, Intervals.icu, etc.
* Strengthened login stability with improved token refresh persistence.
* Enhanced Activity FIT parsing compatibility for newer devices (like Coros DURA).
* Added a new collection of running workouts.
* Improved sync reliability for iGPSport.
* Provided clearer sync advice instead of technical words. 2.2.0 Apr 10 * New "Sync Ignore List": skips problematic or corrupted FIT without blocking the sync progress.
* Enhanced sync reliability: added auto-retry for Garmin and improved compatibility for Magene/Zwift devices.
* Clearer error messages: replaced technical codes with helpful advice.
* Account details page: new entry to view and restore ignored sync items.
* Fixed activity time and tracking issues for specialized platforms. 2.1.1 Apr 1 * New: Apple Sign-In support
* New: Nolio data source
* New: Auto patch for corrupted or incompatible FIT files during sync
* New: 8848 sudoku puzzles for grade easy, medium, hard
* Improved sync stability for Garmin, HealthKit, iGPSPORT, Blackbird
* Optimized COROS track/speed accuracy
* Enhanced account security and deletion flow
* Package size optimization and bug fixes 2.1.0 Mar 29 GarSync 2.0 — Complete Rewrite with Flutter
* Rebuilt from scratch with Flutter for a faster, smoother experience
* Sync activities across 35+ platforms (Garmin, Strava, Komoot, Suunto, Keep…)
* GPS recording with advanced noise filtering & background keep-alive
* BLE sensor support: heart rate, power meter, cadence, running pod
* AI Coach: personalized analysis & PDF report export
* Training load (TSB), HRV trends & adaptive plan management
* Virtual cycling with ERG trainer control
* Rich toolbox to meet your daily sport needs
* Seamless migration from GarSync 1.x 2.0.0 Mar 20 * Add email verification for user signup, login, password reset and account deleting.
* Add support for Komoot.
* Fixed failure when login to NRC (Nike Running Club) on iOS.
* Fixed failure when import data to Coros.
* Fixed location offset when importing data from Keep.
* Fixed issue of no error message when importing duplicated activity data to Blackbird sports.
* Fixed failure of login to Garmin when MFA (multi-factor authentication) enabled.
* Optimized data from MyWhoosh, auto add FTP settings and Garmin training effect info.
* Optimized frequency of location and weather data acquisition. 1.13.0 Jan 8 * Fixed a bug where the track start point was offset to 0 after importing Huawei motion data.
* Fixed a bug where Garmin composite motion data was ignored during import.
* Optimized MyWhoosh data import, supplementing FTP settings and Garmin training results. 1.11.1 11/15/2025 * Added support for NikeRunClub.
* Optimized activity merge to get correct TSS and impact on body battery.
* Optimized sync task, to sync to multiple sport account with single task.
* Added shortcut to AppSync on main page and my sport page. 1.11.0 11/02/2025 * Added support for RQrun.
* Fixed location and activity type error when exporting Keep activities.
* Fixed the problem that cannot switch to MyWhoosh in my sport page. 1.10.0 10/22/2025 * Add power/heartrate zone time distribution for more accurate AI advice;
* Added French, Portuguese, Spanish, and Italian to multi-language support;
* Fixed a high risk security issue of Unity engine;
* Fixed the issue where importing FIT files into activities failed in the previous version;
* Fixed the error of failing to retrieve data from Coros (usually overseas account);
* Fixed the data retrieval issue that occurred when Garmin activity records exceeded 10,000;
* Fixed the sports type conversion error for walking activities when synchronizing data from Keep. 1.9.1 10/09/2025 * Added multi-language support; currently supports English, Simplified Chinese, and Traditional Chinese.
* Simplified AI configuration, with DeepSeek set as the default.
* Enhanced user experience: temporarily prevents screen from sleeping during data synchronization.
* Fixed the bug in Garmin SDK's FIT file writing function, avoiding application freezes when merging activities.
* When importing data from Apple Health, only imports detailed data from Apple Watch, while ignoring activity summaries (with no detailed data) written by other apps.
* Fixed the error caused by changes in the precision of JSON data when importing Onelap data.
* Fixed the error in activity type matching when importing hiking and walking activities from Keep.
* Fixed the issue of failure to import Zepp data older than 3 years. 1.8.0 09/20/2025 1.7.0 08/12/2025 1.6.0 07/28/2025 1.5.0 07/17/2025 1.4.0 06/20/2025