Bag: Bitcoin Portfolio Monitor1.3.5

Track Bitcoin holdings by entering balances or connecting watch-only wallet data, then view their value and status in Bag: Bitcoin Portfolio Monitor. The Android app calculates net worth in up to three fiat currencies, shows live Bitcoin price charts, and lets you switch between sats and BTC. It suits individual holders who want portfolio visibility without handing over spending control, including people monitoring xpubs or Bitkey multisignature wallets.

Its DCA tracker stores average purchase price and cost basis, then helps calculate profit or loss. A home-screen widget displays Bitcoin price, charts, and net worth, while the app also provides mempool fee estimates, manual entries for coins held elsewhere, and light and dark themes. The Pro edition adds multi-wallet portfolios, watch-only single-signature and multisignature monitoring, custom Esplora servers, and Tor routing through Orbot.

Sentinel can watch for transactions and fee changes, and Bitcoin Health Check examines address reuse, UTXO hygiene, and coinjoin coverage. Tor routing fails closed if Tor is unavailable, wallet information is encrypted at rest, and an optional biometric lock adds another access control. Bag has no accounts, ads, analytics, telemetry, or third-party SDKs.

Version 1.3.5 is open-source software in the Finance & Shopping category for Android 7.0 and later on arm64-v8a devices. It is intended for private portfolio monitoring and runs on Android rather than as a desktop wallet or trading service.