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RapidSplit

Split trip costs fairly: per leg, not flat. Offline, no account needed.
New in version 4.2.2
RapidSplit 4.2.2:
* Notification + red cloud X when the server copy of a shared trip was deleted
* Shared trips now refresh automatically on opening
* Default currency can be changed from the home screen menu
* Setup: buttons pinned to the dialog edge, default currency on top
* Sharing dialog explains how to join via QR code
* Swipe-to-delete only on collapsed expense tiles
* Completed remaining translations, updated exchange rates
Those who ride along pay along. Those who don't, don't. RapidSplit settles kayak, club and group trips fairly: leg by leg instead of flat rates.

🛶 PER-LEG TRAVEL COSTS
Set up your trip as legs (e.g. outbound, shuttle, return) and mark who rode along on each leg. Only those people share that leg's costs. Settle via a per-km rate or by fuel costs split by kilometre share.

💶 EVERY COST OF THE TRIP
  • Assign driver expenses (tolls, parking, permits) to individual legs
  • Shared expenses like groceries or campsites, with multiple payers if needed
  • Foreign currencies with stored daily rates
  • Optionally combine club or family balances into one group
  • Manage several trips in parallel

✅ A CLEAR RESULT
Costs per person, balances and "who pays whom" with the minimum number of transfers. Export as PDF or CSV for records and sharing.

🤝 SETTLE TOGETHER
Share your trip via QR code or a 6-digit code and edit it together. For this, an end-to-end encrypted copy is uploaded to the RapidSplit server. You can delete your shared trips from the server at any time. No one except the people you invite has access to the trip data.

🔒 PRIVATE BY DESIGN
  • No account, no registration
  • Works fully offline – ideal in the outdoors
  • Your data stays on your device by default – only what you explicitly share goes to the RapidSplit server
  • No tracking, no ads
  • Free and open source (GPL-3.0)

Includes a step-by-step tutorial and a sample trip to try out. Light and dark mode.
🌍 ENGLISH OR GERMAN
The interface comes in both languages – on first launch you pick language, theme and default currency, and you can change all of it later from the menu.

Versions

Although APK downloads are available below to give you the choice, you should be aware that by installing that way you will not receive update notifications and it's a less secure way to download. We recommend that you install the F-Droid client and use that.

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  • Version 4.2.2 (40202) suggested Added on Aug 23, 2026

    This version requires Android 5.0 or newer.

    It is built and signed by the original developer, and guaranteed to correspond to this source tarball.

    Permissions
    • take pictures and videos
      This app can take pictures and record videos using the camera while the app is in use.
    • have full network access
      Allows the app to create network sockets and use custom network protocols. The browser and other applications provide means to send data to the internet, so this permission is not required to send data to the internet.

    Download APK 0.6 MiB PGP Signature | Build Log