Live GPS lock
Latitude, longitude, accuracy, altitude, speed, bearing, plus code, UTM, barometer altitude and GNSS / NavIC quality.
Android · Offline-first · On-device
Field proof that stays on your phone.
GeoField is a privacy-first GPS camera for surveys, inspections and site notes. Stamp photos, mark points, measure, map and export reports — without an account, ads, or a backend.
- 100% free
- No ads
- No account
- No cloud required
Built for roads, sites, forests and places with no signal.
0servers
0trackers
1device owns the data
What you get
A field kit, not a social app.
Everything a GPS camera should do — plus surveying tools most photo apps never ship.
Accuracy gate
Warn before a sloppy capture. Wait for a tighter lock, refresh GPS, or capture anyway when the site demands it.
GPS camera stamp
Burn coordinates, place, project, true north, UTM and plus code onto the photo. Keep an unstamped original too.
Offline maps
OpenStreetMap layers, photo wedges, tracks, geofences. Cache tiles while you have signal; work later without it.
Measure & survey
Point-to-point distance, route length, polygon area. Go-to a saved point with distance and bearing.
Projects & notes
Group photos, locations, voice notes and measurements. Categories, geofences, before/after photo compare.
On-device reports
PDF with logo and site plan. CSV, GeoJSON, KML, GPX. Encrypted .gfb backups. Import GPX/KML.
Proof pack
SHA-256 hash chain of originals. Export JSON so a receiver can verify files without creating an account.
GPS camera
Every frame carries the place it was taken.
Dual-save keeps the original JPEG next to the stamped copy. True north uses magnetic declination. The stamp is yours to configure — coordinates, accuracy, altitude, bearing, date, project, UTM, plus code.
- Original + stamped file
- Place name with full country
- Photo direction wedges on the map
- Before / after slider for site change
Field tools
Survey tricks that fit in a pocket.
Occupy
Stand still 10–60s. GeoField averages GPS samples into a tighter control point with RMS.
Offset point
Can't stand on the asset? Shoot a bearing and distance — save the remote lat/lng from where you are.
Theodolite
Pitch HUD, percent grade, object height from base and top elevation plus a measured distance.
Checklists
Local site-inspection lists. PPE, access, GPS lock, photos, hazards — no form builder in the cloud.
Take it with you
Export like a GIS person. Share like a human.
PDFCSVGeoJSONKMLGPXProof JSON.gfb backup
Product philosophy
Your location. Your photos. Your data.
- Free
- No ads
- No account
- No tracking
- No backend required
- Offline first
- You own the files
Photos, originals, hashes, maps and notes live in app storage on the device. Nothing is uploaded unless you tap share. Google map tiles are not used.
How it works
Three steps in the field.
- Lock GPS Wait for READY. Refresh if accuracy is poor. Occupy if you need a control point.
- Capture & mark Stamp photos, drop locations, record a track, run a checklist, shoot height with the theodolite.
- Report & leave PDF on-device. Proof pack for authenticity. Encrypted backup if the phone might not come home.
Questions
Straight answers.
Does GeoField need the internet?
No. GPS, camera, compass, maps you already cached, stamps, PDFs and backups all work offline. Internet is only used if you search Nominatim or download map tiles.
Is there a login or subscription?
No account, no paywall, no ads. Optional Play Billing exists only as a tip jar — it does not unlock features.
Where is my data stored?
On the Android device. Photos under app storage, originals in a separate folder when dual-save is on, notes in a local Room database. Share and export are explicit actions.
Can someone verify a photo wasn’t swapped?
Each original is SHA-256 hashed and chained. Export a proof JSON. Anyone can re-hash the files and check the chain — no GeoField server involved.
Which phones?
Android 8.0 (API 26) and up. Camera, fine location, and a compass sensor are expected. Barometer and NavIC are used when the chipset provides them.
Get it
Install GeoField on Android.
Native Kotlin app. No Flutter wrapper, no tracker SDK, no required store login to use the product.
Package com.dynamite.geofield · Free forever for field work.