Stampr for Android — Help & User Guide
Everything you need to know to get the most out of Stampr. This guide covers Stampr 1.0 for Android phones.
Contents
Getting Started
Stampr is a GPS field camera designed for professionals who need location-stamped photos and video with metadata. It burns GPS coordinates, altitude, bearing, street address, and optional voice notes directly onto your photos — and embeds the GPS data into the photo file itself (EXIF), so your shots pin correctly in Google Photos, GIS software, and claims tools.
The app has three tabs:
- Camera — Take GPS-stamped photos and videos with a live metadata overlay.
- Library — Browse, search, and organize your photos by project and tags.
- Settings — Customise the stamp format, toggle features, and manage your Pro purchase.
Grant Permissions
When you first open Stampr, allow access to your camera and location (choose "While using the app" with precise location). Microphone access is needed only if you use voice notes or record video. You can change these anytime in Android Settings > Apps > Stampr > Permissions.
Take Your First Photo
Point the camera and tap the shutter button. Stampr saves the photo immediately and stamps it with your GPS data, address, and timestamp — all frozen at the exact moment you pressed the shutter.
Add a Voice Note (Optional)
After each photo, hold the microphone button to record a voice note. Stampr transcribes it on-device (a one-time ~32 MB speech model download is offered first), and on supported devices an on-device AI tidies the dictation into a clean caption with suggested tags. Prefer fully hands-free? Turn on Hands-Free mode in Settings and Stampr records automatically after every shot, stopping when you stop talking.
Review in Library
Switch to the Library tab to see all your stamped photos. Tap any photo for full details, metadata, and sharing options.
Using the Camera
The Camera tab is where you take GPS-stamped photos and videos. The live stamp overlay at the top shows exactly what will be burned onto your image.
Stamp Overlay
The live GPS data is displayed at the top of the camera view. This is exactly what will be stamped onto your photo. It updates in real time as you move. The overlay shows:
- Street address (reverse-geocoded)
- GPS coordinates — in Decimal, DMS, UTM, or MGRS format
- Altitude (metres or feet), bearing (true or magnetic north), and accuracy
- Date and time
The accuracy readout is colour-coded: green within 5 m, amber within 15 m, red beyond that. If there's no GPS fix yet, the overlay shows "ACQUIRING GPS…" — and photos taken without a fix are stamped "NO GPS FIX" rather than misleading zero coordinates.
With Map on Stamp enabled in Settings, a small OpenStreetMap inset showing your position is added to the stamp as well.
Photo / Video Mode
Switch between PHOTO and VIDEO with the mode picker above the shutter. See Stamped Video below for details.
Zoom & Lenses
Pinch to zoom or tap the preset buttons above the shutter. On phones with an ultra-wide camera you also get a 0.5× preset.
Level Indicator
A subtle bubble level in the centre of the viewfinder shows when your horizon is straight — it turns green when you're level, in both portrait and landscape. Great for straight-on documentation shots. You can turn it off in Settings.
Require GPS Fix
If your work demands coordinates on every shot, enable Require GPS Fix in Settings. The shutter will then wait for a GPS lock, with a "Capture Anyway" escape hatch if you need the shot regardless.
Flash & Resolution
Tap the flash icon to toggle the flash. Enable Maximum Resolution in Settings to capture at your phone's full sensor resolution (larger files).
Voice Notes & AI Cleanup
Voice notes add context that would be tedious to type — site conditions, observations, measurements, or instructions. Stampr transcribes them on-device and can burn the text directly onto the photo.
The Speech Model
Transcription runs entirely on your phone using the open-source Whisper speech-recognition model — no cloud, no account, and it works on every Android phone, not just flagships. The first time you use voice notes, Stampr offers a one-time model download (about 32 MB); you can also start it from Settings → Voice Recognition Model. After that, transcription works completely offline.
Three Voice Modes
Choose how voice notes work in Settings → Voice Notes:
- Prompt After Photo (default) — After each shot, a sheet appears. Hold the microphone button to record, release to stop.
- Hands-Free — Recording starts automatically after every shutter press and stops by itself about two seconds after you stop talking. From pocket to documented photo without touching the screen — ideal with gloves on.
- Off — No voice prompt. You can still add notes later from the photo detail screen.
AI Note Cleanup
On devices with Android's on-device AI (Gemini Nano — recent Pixel and Galaxy flagships), Stampr's AI Note Cleanup tidies your dictation into a clear, professional caption and suggests searchable tags — entirely on-device. "um so there's a crack on the uh north wall" becomes "Crack on north wall." The verbatim transcript is always kept too: you can see the original on any photo's detail screen.
On devices without on-device AI, the verbatim transcription is used as-is — nothing is lost.
Stamped Video
Record site walkthroughs with the GPS stamp burned onto the footage.
Switch to VIDEO
Tap VIDEO in the mode picker above the shutter. The shutter button turns red.
Record
Tap to start recording (with sound), tap again to stop. Recordings cap at 3 minutes. The GPS data, address, and time are captured at the moment recording starts.
Stamped & Saved to Your Gallery
Stampr burns the same stamp band your photos get — plus your watermark or logo — onto the video, then saves it to your gallery in the Movies/Stampr folder. Look for the "Stamped video saved to Movies" confirmation.
Photo Library
Browsing Photos
The Library tab shows all your photos in a grid sorted by date. Use the filter menu to narrow by time period, project, or tag. Use the search bar to find photos by notes (including the original transcript), tags, address, or project name.
Map View
Toggle the map icon to see your photos plotted on an OpenStreetMap view. Tap any marker to open that photo's details. Only photos with valid GPS coordinates appear on the map.
Selecting Multiple Photos
Tap "Select" to enter selection mode. Tap photos to select them, then share or delete the selection using the toolbar.
Photo Details
Tap any photo in the Library to see its full metadata. The detail view shows everything that was captured with the photo:
- Stamped photo — The full image with GPS data burned on; tap for fullscreen
- Project — Tap to change or assign a project
- Notes & tags — AI-cleaned caption (editable), the original transcript, and tag chips you can add or remove
- Before / After — Link this photo with another to document repairs; share the pair as a side-by-side composite
- Location — Map, street address (editable), coordinates, and the UTM reference; tap the coordinates to open them in your maps app
- GPS Data — Altitude, bearing, tilt/roll, accuracy, and capture time
Editable Address
Reverse-geocoded addresses aren't always perfect — rural sites, new subdivisions, and large lots often come back wrong. Tap the address on the detail screen to correct it, and Stampr re-stamps the photo with your corrected address. This is free for everyone.
Before / After Pairs
Tap Link Before/After Photo to pair two photos — the older one automatically becomes the "before". Once linked, the share menu gains Share Before/After, which exports a labelled side-by-side composite image. Perfect for documenting repairs.
Sharing One Photo
The share button offers Share Stamped Photo (with the PDF report), Share Original (the unstamped capture), and Share Before/After when the photo is paired.
Projects
Projects help you organize photos by job site, inspection, or any grouping that makes sense for your work.
Creating a Project
In the Library tab, tap "+ New" next to the Projects row. Give it a name, pick a colour, and optionally set it as your default project.
Assigning Photos
From the photo detail screen, tap the project card to move a photo to a different project or remove it from a project. The stamp on the photo updates automatically to reflect the new project name.
Default Project
Set a default project so all new photos are automatically assigned to it. This is useful when you're on-site and want every photo tagged to the current job.
Renaming & Deleting
Open the project menu to rename or delete. After renaming, Stampr asks if you want to update the project name on all existing photos. When deleting, you can keep the photos unassigned or delete them too.
Project Files — Team Handoff
Hand a whole project to a teammate as a single file — no accounts, no cloud service. It even works across platforms: Stampr project files move between Android phones and iPhones.
Share the Project File
Open the project, tap the menu, and choose Share Project File. Stampr packs every photo (stamped and original), voice note, and all metadata into one .stamprproj file you can send by Quick Share, email, Drive — anything.
Open on the Other Device
On the receiving phone, tap the file in your Files app, Drive, or the email attachment and choose Stampr. (The always-reliable path: Library → filter menu → "Import Project…".)
Merge Without Duplicates
Importing merges by photo identity: photos you already have are skipped, new ones are added to the matching project. Trade files back and forth as a job progresses — you'll never get duplicates.
Settings & Customisation
The Settings tab controls how Stampr stamps, captures, and shares.
| Setting | Description | Default |
|---|---|---|
| Stamp Text Size | Font size of the stamp overlay (8–24pt) | 12pt |
| Coordinates | Decimal Degrees, DMS, UTM, or MGRS | Decimal |
| Units | Metric (m) or Imperial (ft) for altitude and accuracy | Metric |
| North Reference | True or magnetic north — bearings are marked °T or °M | True |
| Voice Notes | Off, Prompt After Photo, or Hands-Free | Prompt |
| Voice Recognition Model | One-time ~32 MB download; transcription then runs fully on-device | — |
| AI Note Cleanup | On-device AI tidies dictation and suggests tags | On* |
| Require GPS Fix | Block the shutter until coordinates are locked | Off |
| Maximum Resolution | Capture at the sensor's full resolution | Off |
| Level Indicator | Bubble level in the viewfinder | On |
| Print GPS Data on Photo | Coordinates, altitude, and bearing on the stamp | On |
| Print Street Address on Photo | Reverse-geocoded address on the stamp | On |
| Print Notes on Photo | Burns voice transcription onto the stamp | Off |
| Embed GPS in File (EXIF) | Machine-readable location inside the photo file | On |
| Map on Stamp | Small OpenStreetMap inset on the photo (uses the network) | Off |
| Include Report When Sharing | Attach the PDF field report when sharing photos | On |
| Location Services | Enable GPS, address, and compass data | On |
| Watermark / Logo | Custom text or logo branding on photos and reports (Pro) | None |
* AI Note Cleanup requires a device with on-device AI (Gemini Nano); on other devices the verbatim transcription is used.
Stampr Pro
Stampr includes 15 free photos per month. To unlock unlimited photos and remove the watermark, purchase Stampr Pro — a one-time payment with no subscription, ever.
Restoring Your Purchase
If you reinstall the app or switch devices, go to Settings and tap "Restore Purchase". Your Pro access will be restored automatically via Google Play. Make sure you're signed into the same Google account you used for the original purchase.
Quick Settings Tile & Shortcuts
Quick Settings Tile
Add the Stampr Camera tile to your Quick Settings shade for the fastest path to a stamped photo: swipe down from the top of the screen, tap the edit (pencil) button, and drag the Stampr Camera tile into your panel. One tap opens the camera ready to shoot — even from the lock screen shade.
App Shortcuts
Long-press the Stampr icon on your home screen for Take Stamped Photo and Open Library shortcuts. You can drag either onto your home screen as its own one-tap icon.
Permissions
Camera
Required to take photos and videos. If access was declined, the viewfinder shows a shortcut to enable it in Android Settings.
Location (precise)
Used to stamp GPS coordinates, altitude, bearing, and street address onto photos — only while you're using the app. You can disable location in Settings if you don't need location data.
Microphone
Needed for voice notes and video sound. Only used while recording. Voice transcription happens on-device — your audio is never sent to any server.
Internet
Used for street address lookup, OpenStreetMap imagery, the one-time speech model download, and Google Play Billing. Capture, stamping, and transcription all work offline.
Frequently Asked Questions
Where are my photos stored?
Do my photos sync between devices?
Can I share projects with iPhone users?
Can I change the stamp after taking a photo?
Why does Stampr download a file before my first voice note?
What does AI Note Cleanup need?
Does Stampr send my location data anywhere?
What are UTM and MGRS formats?
Why is the address not showing?
Can I use Stampr offline?
How do I share photos with the GPS report?
Hands-free mode stops too early (or too late) on a noisy site
My video saved without a stamp / I can't find my video
I purchased Pro but it's not showing. What do I do?
Is my voice recording sent to Google or any server?
Still need help?
Email us at support@top7systems.net and we'll get back to you within 48 hours.