Offline topographic mapping
Download the map before you leave. Everything works with no signal.
Navigation, GPS tracks, drawing, measurement and map printing all run on the device. There is no cloud round-trip, no login wall and nothing to reconnect to. Airplane mode is a supported way to use this app, not an edge case.
Beta APK Compare with Gaia & onX
installs to date
Draw a box, choose the zoom levels, and the whole area downloads to the phone — basemap, active overlays and 3D terrain together. Saved areas use persistent storage, so the system will not clear them to reclaim space.
Real elevation data in 3D, slope shaded by angle or aspect, viewshed and radio-horizon analysis, and true-scale PDF map sheets with UTM or MGRS grids for the pack.
Share positions, markers and tracks over the internet, your own LAN, or an off-grid Reticulum mesh, and bridge into ATAK. Search periods, clue logs and rosters are built in for SAR crews.
Import and export the files you already have. Nothing is locked to this app.
$0
No account required
$40 Once
Unlocks app, web and desktop
Takes an account first — create one, then buy, and Pro unlocks on it straight away. Already have one?
| Item | ZYRNTOPO | Typical premium app |
|---|---|---|
| Offline map downloads | Unlimited with Pro, paid once | Paid tier, billed yearly |
| 3D terrain | With Pro, paid once | Paid tier, billed yearly |
| Live team sharing | P2P and mesh, no server | Subscription plus cloud account |
| Print-ready PDF sheets | True-scale UTM/MGRS, with Pro | Paid tier, or absent |
| Account required | Only to unlock Pro | Required to use it at all |
| Where location data lives | On your device | On their servers |
| Total cost | $40, once | $40–60 every year |
Reflects common pricing and feature-gating across mainstream subscription mapping apps as of 2026. No specific product is implied.
One command. Detects your distribution, verifies the SHA-256, installs the right package.
ZYRNTOPO
Linuxcurl -fsSL https://zyrntopo.com/install.sh | shzyrntopo update
zyrntopo version
zyrntopo removeDebian, Ubuntu, Fedora, RHEL, openSUSE and Arch get their native package. Anything else — NixOS, musl, immutable images — gets a self-contained AppImage that needs no root.
Windows 10 or 11 — 64-bit, ARM64 or 32-bit. The same application in a desktop shell — offline maps, tracks and the POI dataset all behave exactly as they do on Android.
Windows is on 1.12.0 while 1.12.1 finishes building. Every other platform below is 1.12.1.
Take the 64-bit build unless you know otherwise. Choose ARM64 for a Snapdragon machine such as a Surface Pro 11 or a Copilot+ PC — it runs natively rather than under emulation. The 32-bit build is for older x86 hardware, and also runs on 64-bit Windows if you are unsure.
The .exe installs for the current user and needs no administrator. The .msi installs for every user on the machine and is the one to hand to Group Policy or Intune.
WindowsGet-FileHash zyrntopo-1.12.0-win-x64-setup.exeThe installers are not code-signed yet, so SmartScreen shows "Windows protected your PC". Check the SHA-256 against the download archive, then choose More info → Run anyway.
Android 7.0 or later. The APK carries the whole POI dataset, so it works with no connection from first launch.
Androidcurl -fLO https://pois.zyrntopo.com/downloads/zyrntopo-1.12.1-beta.apk
adb install zyrntopo-1.12.1-beta.apkFire HD and Fire Max tablets, and any Android phone or tablet running the Amazon Appstore. Fire OS ships without Google Play, so this is the route onto a Fire device — the Appstore handles installation and updates for you.
The same build as the Android release, POI dataset included, so it works with no connection from first launch.
Nothing to install. Installable as a PWA, and every offline feature works once an area is saved.
Current release 1.12.1 (build 181), except Windows on 1.12.0 (build 180). Sizes and SHA-256s for it are listed in the download archive (releases.json for scripts). Only the current release is published — always install the latest.
Install on Android, or open it in a browser now. Either way you are navigating in under a minute, and you can save your first area before you leave the driveway.