Bitcoin Wallet [testnet3] app
Bitcoin Wallet [testnet3] is Money tool that is open source under the GPL-3.0-only license. A Bitcoin wallet, allowing you to store, send and receive Bitcoins on yourdevice, both via QR codes and NFC. This is a test version of
https://www.openapk.net/bitcoin-wallet/de.schildbach.wallet/ that uses the test Bitcoin network, not the real one.