Search works offline
A local index means searching for a place, a feature or a saved trip works with the radio off. This is the thing that most reveals whether an app is offline-first or not.
Platform · Offline first
A region is a contract. Not a cache.
A cache is whatever happened to be on screen when you last had signal. A region is a deliberate object: an area, a zoom envelope, the layers you chose, and a recorded tile epoch so you can see what is stale before you leave the road.
01 / By the numbers
3Regions on Free20 on Pro, unlimited on Elite
100MBFree storage10 GB Pro, 100 GB Elite, unlimited Enterprise
1Epoch per regionSo staleness is a date, not a feeling
0Network calls in the fieldThe map, the search index and the AI are already local
02 / How it works
The mechanism, not the promise.
- Area and zoom envelope
- You choose the bounds and the zoom range. The size estimate is computed per enabled layer before you commit.
- Per-layer download
- Every layer you have enabled is pulled for that envelope. A region is not one basemap — it is the whole stack you actually navigate with.
- Version pinning
- The tile epoch is recorded at download. The region list shows how old each one is, per layer.
- Eviction
- Regions are evictable individually and the app shows what each one costs on disk. Nothing is silently discarded.
- Sneaker-net transfer
- A region can be exported and imported over removable media, which is what makes air-gapped deployment a configuration rather than a separate product.
03 / Capabilities
What you actually get.
The assistant works offline
App-level questions and on-device classification run from a bundled knowledge base and TFLite models. No connection required.
Writes queue durably
Every edit goes into a persistent operation log before the UI acknowledges it. A process kill loses nothing.
Routing works offline
Re-planning against the cached graph, on the device.
Staleness is visible
You are told which layers in a region are old, and how old, rather than discovering it at a trail junction.
Group members share regions
A region prepared by a trip leader can be distributed to the party over mesh before departure.
04 / Specification
| Tier | Regions | Storage | Trips |
|---|---|---|---|
| Free | 3 | 100 MB | 5 |
| Pro | 20 | 10 GB | Unlimited |
| Elite | Unlimited | 100 GB | Unlimited |
| Enterprise | Unlimited | Unlimited | Unlimited |
05 / Process
Traced, node by node.
Every node in this graph names the file it came from, so the diagram can be audited against the codebase rather than taken on trust.
Download once. Trust it for weeks.
Three regions on Free is enough to prove it. Unlimited offline is Elite.