CostBuddy

Shared expenses without the awkward maths. Create a group, invite friends by email, and settle up fairly — on Windows and Android.

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Download

Windows: unpackaged x64 ZIP (.NET 8 Desktop Runtime + Windows App Runtime).
Android: signed Release APK for sideload. Enable “Install unknown apps” for your browser, then open the APK. Google Play Protect may warn — that’s normal outside the Play Store.

CostBuddy for Windows (ZIP) CostBuddy for Android (APK)

Updates

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In-app check

CostBuddy periodically checks this page for a newer version and can open the download from Settings.

Invite by email

Group admins send a branded invitation with your invite code and a link back here.

Live API

The app talks to the CostBuddy API on the separate Combell host. Health: /health