Offline-First Data Collection.
Sync when you're ready.
Field work happens where antennas don't reach. Remote pipelines, dense forests, underground vaults, rural roads — data capture can't depend on having signal. Mapalyze saves everything to an encrypted local database first and syncs automatically when connectivity returns.
The problem with "offline mode"
in field data apps.
Most field platforms treat offline as a checkbox to tick, not an architectural decision. The result is predictable — and expensive.
Looks offline. Fails in practice.
The app lets you start a form without a connection. Fine. But it freezes when saving a record with 6 photos and a polygon. Offline capability was added after launch, not designed from the ground up. Your team finds out the hard way — mid-inspection, 35 kilometres from the nearest signal.
Data loss on reconnect.
An intermittent connection is worse than none. When signal comes and goes, some platforms attempt partial syncs that fail mid-transfer. Records get corrupted, photos disappear, or duplicate entries flood your database. Your team spends the afternoon untangling data that should have synced cleanly the first time.
Needs internet just to open.
Some platforms require internet just to open the app, load a project, or download form definitions. If your team arrives at a remote site and opens the app for the first time that morning, they're stuck. No connection, no work — even if the tool claims to have offline support.
Offline data collection isn't a feature.
It's the foundation.
Your device is the
source of truth.
Every write goes to an encrypted local SQLite database (SQLCipher, 256-bit AES) before anything touches the server. Every local write creates a paired sync operation in the same atomic transaction — your outbox is always in lockstep with your data. The encryption key is stored in the platform secure enclave (iOS Keychain / Android Keystore). Your device holds the authoritative copy while offline.
When signal returns, your
field data syncs automatically.
The moment the device detects connectivity, sync starts automatically after a 5-second debounce. The engine runs in the background on both iOS and Android using lease-based mutual exclusion — no two sync cycles can run concurrently. Adaptive batching sends 200 to 1,000 operations per batch based on queue depth. Pull page sizes adapt to Wi-Fi vs cellular. If connectivity drops mid-sync, the engine picks up exactly where it left off.
Two offline edits. One record.
Auto-resolved.
If two team members edit the same record while offline, Mapalyze automatically merges non-conflicting changes from both sides. If both people edited different fields, both changes are kept. If both edited the same field, the system records the conflict, applies the configured resolution path, and keeps that decision visible in Sync History before the merged result syncs back to the other devices.
Your team always knows
what's synced.
Every operation gets exponential backoff retry (15s, 1m, 5m, 15m, 1h). Permanent server rejections are dead-lettered — never retried forever. Content-hash deduplication prevents redundant pushes, and server-side operation ID dedup ensures idempotency. Malformed data is quarantined, not silently dropped. GPS captures full precision: latitude, longitude, altitude, accuracy, speed, and heading — all queued locally even without signal.
Mapalyze keeps synced forms, maps, and project data on-device so teams can keep working when signal drops. Newly published forms and project changes arrive on the next sync.
Where connectivity
is a luxury.
The offline architecture was designed for the environments where capturing data without connectivity is a necessity, not an exception.
Remote Utility Corridors
Utility inspection teams work along transmission lines, pipeline easements, and rural distribution networks that are kilometres from the nearest antenna. Inspect 47 poles, document damage, and capture GPS-tagged photos through a full shift — no signal required.
Underground Infrastructure
Subways, tunnels, basements, and underground vaults have no cell signal. Full stop. Inspection teams need to document conditions, capture measurements, and photograph assets without any connectivity. Mapalyze captures everything locally and syncs when the team surfaces.
Dense Forest Cover
Environmental survey teams conducting biodiversity assessments, habitat mapping, and forest censuses work under tree canopies that block or degrade cell signal. GPS still works under the canopy, and Mapalyze captures all spatial and attribute data locally for end-of-day sync.
Intermittent Coverage Zones
Teams operating in regions with limited cell infrastructure need a tool that doesn't assume constant connectivity. Mapalyze keeps the same capture workflow on full LTE, intermittent 2G, or no signal at all, as long as the required forms, maps, and project data were synced beforehand.
Your data shouldn't depend
on your signal.
14-day free trial. No credit card. Works on iOS, Android and web. Your team can be capturing GPS-tagged data in under an hour — with or without connectivity.