Tracelet
Tracelet: Tracelet adds mobile geofencing and offline location sync to Flutter apps. Ranked #8 of 17 in Geofencing Software by our editors (8.3/10); pricing: Free plan; best for open-source Flutter geofencing with offline support.
At a glance
- Editor score8.3 / 10
- PricingFree plan
- Best forOpen-source Flutter geofencing with offline support
- Free planYes
- Paid fromFree
- Mobile SDKYes
- Facts checked24 Sep 2026
Where it wins
- Circular and polygon fences support entry, exit, and dwell events
- Background tracking works on iOS and Android
- Offline HTTP sync queues updates and retries
Where it doesn't
- Web tracking and geofencing work only while the page is open
- It is an SDK, not a hosted geofencing service
- Support is community-based
Our verdict on Tracelet
Tracelet is an open-source Flutter SDK for developers adding location tracking and geofencing to mobile apps. It suits teams that want to build location-aware applications with circular or polygon fences, entry, exit, and dwell events, and background tracking on iOS and Android. A web implementation covers foreground tracking and proximity geofencing while a page is open, so its web behavior is narrower than its mobile offering.
Its standout strength is handling location work when connectivity is unavailable. SQLite persistence stores location and geofence data locally, while configurable HTTP synchronization supports offline queuing and retries. Motion detection uses device sensors, and headless Dart callbacks can run for background events. Firebase and Supabase integrations connect Tracelet with those services; the product is still an SDK that developers incorporate into an application, rather than a hosted geofencing service. That makes it a fit for teams comfortable implementing and maintaining location features in Flutter.
Tracelet is open source and has a free plan, but the published product information does not establish paid tier limits or quotas. Documentation describes unlimited geofences through proximity-based loading. Community support is the listed support channel. Choose Tracelet when open-source Flutter tooling, offline synchronization, and mobile background tracking matter more than a turnkey service. It is less suitable for buyers seeking a hosted solution, or for applications that need web geofencing to continue when a page is closed.
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Tracelet pricing
Tracelet fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| Mobile SDK | Yes |
| Web geofencing | Yes |
| Background tracking | Yes |
| API access | Yes |
| Geofence shapes | Both |
| Maximum geofences | Not verified |
| Alert channels | Not verified |
| Deployment | Cloud, Mobile, Browser extension |
| Platforms | Web, iOS, Android |
| Support | Community |
| Built for | Solo, Small business, Mid-market, Enterprise (editorial estimate) |
| Integrations | 2 integrations: Firebase, Supabase |
| Pricing | Free plan |
| Website | github.com |
| Facts checked | 24 Sep 2026 |
Tracelet integrations
Tracelet lists 2 integrations on its own site.
- Firebase
- Supabase
Alternatives to Tracelet
- SpatialFlowA flexible geofencing stack spanning tracking apps, APIs, workflows, and self-hosting.9.3
- WoosmapA mobile SDK for circle, polygon, and time-based geofences with background tracking.9.1
- Mapbox GeofencingA mobile-focused geofencing component with a free tier and usage-based pricing.8.9
See all Tracelet alternatives →
Tracelet vs the competition
- Tracelet vs SpatialFlow
- Tracelet vs Woosmap
- Tracelet vs Mapbox Geofencing
- Tracelet vs TomTom Geofencing API
- Tracelet vs Amazon Location Service
- Tracelet vs Radar
Compare Tracelet with any tool side by side →
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Featured on iTechGuides
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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