10digit vs GridFinder
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
10digit
This offline GPS app provides real-time Military Grid Reference System coordinates, essential for military, search and rescue, and outdoor enthusiasts. It supports offline maps, waypoint management, and various coordinate formats, ensuring reliable navigation without an internet connection.
- Real-time MGRS coordinates
- Offline map caching
- Waypoint management
- GPX & CSV export
- KML & KMZ import
- Ruler tool
- Background location tracking
- Multiple coordinate formats
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Read your grid. Build your field plan. 10digit brings MGRS navigation, offline maps, overlays and terrain planning into a clear field interface on iPhone and iPad. READ YOUR COORDINATES Use MGRS, UTM, or latitude and longitude alongside heading, altitude, speed, and reported horizontal accuracy. Coordinate precision and GPS accuracy are different; check the accuracy reading when using a position. PREPARE OFFLINE MAPS Download supported map regions before heading out. Keep saved maps, waypoints, and recorded tracks together when cell coverage is unavailable. Offline map use requires completing the relevant download in advance. BUILD AND SHARE YOUR PLAN Save waypoints, organize them into overlays, navigate by bearing and distance, and record your route. Import supported files and share locations with others. Pro adds live Team Overlays and KML, GeoJSON and encrypted layer exports. EXPLORE THE TERRAIN Pro terrain line of sight compares two points and shows visible and masked sections on an elevation profile. Snap to saved waypoints and share profile graphics. Terrain estimates are planning aids; they do not account for every building, tree or field condition. CONFIGURE YOUR TAK CONNECTION Pro includes experimental Cursor-on-Target networking and TAK Server connection settings, with server-package import. Choose when to connect and whether to broadcast your position. Deploy a temporary, private, cloud-hosted TAK server for exercises on demand. USE IT IN THE FIELD A large coordinate readout and a red-on-black night mode keep the interface easy to read in different conditions. CHOOSE WHAT YOU SHARE Navigation does not require a personal sign-up. Online maps request map tiles. Optional Team Overlay and TAK features send data when you choose to use them. Usage analytics are optional and can be controlled in Settings. OPTIONAL ONE-TIME PRO UPGRADE Start with core navigation and up to three offline map regions. Pro removes the region limit and adds the advanced sharing, terrain and planning tools shown in the app. Pro is a one-time purchase, with no subscription. Map availability and downloaded coverage depend on the selected source. GPS reception, battery life, and the accuracy reported by your device affect field use.
GridFinder
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GridFinder shows you exactly where you've already searched. As you move, GridFinder paints a mesh grid over the map, filling in every cell you pass through. At a glance you can see which areas you've covered — and which you still haven't — so you never search the same spot twice or miss a corner. Perfect for any task where covering ground thoroughly matters: • Searching for a lost item, key, or dropped belonging • Looking for a lost pet • Foraging, beachcombing, or mushroom hunting • Ground search, field surveys, and patrols KEY FEATURES Visual coverage grid Your path is recorded cell by cell on the map. Covered ground is filled in, so gaps are obvious. Adjustable resolution Choose 5m, 10m, or 20m cells depending on how finely you want to record. Auto-stop timer Set a time to stop automatically so tracking never runs longer than you need. Search history Every session is saved. Reopen past searches and overlay them on the map to compare where you've been. Search together (optional) Share an 8-character code with friends or teammates and cover a large area as a group. Everyone sees each other's explored cells in real time, so no one overlaps. Your cells appear in a darker color, teammates' in a lighter shade. GridFinder works entirely around your location on the map — simple, focused, and built to make sure no ground goes unchecked. Note: The real-time group sharing feature uses tickets, available as an in-app purchase. Solo searching and history are always free.
Screenshots
Verdict
The clearest difference is update cadence: GridFinder at every 5 days against 10digit's fortnightly. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. 10digit sells 1 one-off in-app purchase and GridFinder sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
10digit ships an update fortnightly, GridFinder every 5 days. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.
| Parameter | 10digit | GridFinder |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (5 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 5 — better | — |
| Update frequency | Fortnightly | Every 5 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, Apple Watch — better | iPhone, iPad |
| Requires iOS | 17.0 — better | 17.4 |
| Further details — not scored | ||
| Size | 22 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | Scaleworks LLC | Satoshi Takezawa |
In-app purchases
10digit
- Pro Features$3.99
GridFinder
- Mini Ticket$0.99
- Standard Ticket$4.99








