GarSync vs DailySync: Sports Data Sync Tool Comparison
What Is DailySync?
DailySync is an open-source project focused on syncing activities between Garmin China and Global regions. It accepts Garmin credentials through a web interface, logs in on its server to download FIT files, and uploads them to the target platform. It currently supports Garmin China, Garmin Global, and Strava.
DailySync's strengths are being free and open-source — tech-savvy users can self-host. There's also a hosted version (dailysync.vyzt.dev) for non-technical users.
Feature Comparison
| Dimension | GarSync | DailySync |
|---|---|---|
| Platforms | 35+ sports platforms | Garmin China, Garmin Global, Strava (direct) |
| Usability | Mobile app — install and go, no tech skills needed | Web or self-host — requires some technical background |
| Data security | Credentials stored on-device only | Credentials uploaded to third-party server |
| FIT data repair | GCJ-02 correction, device ID rewrite, field completion | None |
| NAS/PC backup | NAS/PC auto-archive | None |
| AI coach | Auto deep analysis per activity | None |
| CTL/ATL/TSB | Built-in Fitness/Fatigue/Form charts | None |
| Activity merge | Join segments into one activity | None |
| Weight sync | Apple Health / Xiaomi Health → Garmin | None |
| Sync method | One-tap manual sync | Scheduled polling (~20 min) |
| Pricing | Free trial + pay-as-you-go (bulk capped) $4.99/mo: AI coach + unlimited sync | Free (may change with maintenance costs) |
How to Choose?
DailySync is a good fit if:
- You only need basic Garmin China ↔ Global sync, no Keep, Xingzhe, or other platforms.
- You're technical enough to self-host the open-source version.
- Budget is zero and you only need minimal sync.
GarSync is a better fit if:
- You use multiple sports platforms (Garmin, COROS, Strava, Zwift...) and want unified management.
- You need FIT repair — GCJ-02 offset on Magene, or MyWhoosh device ID unrecognized by Garmin.
- You want NAS backup — your data on your drives, not a cloud service.
- You want sync, analysis, and backup in one app instead of juggling web tools.
- You care about account security — credentials stay on your phone, not a third-party server.
FAQ
Q: DailySync is free — why does GarSync charge?
A: DailySync is a lightweight open-source script focused on one scenario (Garmin cross-region sync). GarSync is a full sports data management platform — 35+ platform integrations, FIT repair engine, AI coach models, NAS backup, cross-platform OAuth management — all require a full-time team to develop and maintain. GarSync offers a free trial, pay-as-you-go capped at ~$0.95, and subscriptions are only needed for heavy users.
Q: Can I use both DailySync and GarSync?
A: You can, but it's unnecessary. Both handle Garmin cross-region sync — using both will create duplicates. Pick the one that meets all your needs.