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Android Groestlcoin Sentinel v3.5.02 released

Started by gruve_p, September 24, 2018, 08:57:21 PM

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Groestlcoin Sentinel is the easiest and fastest way to track/receive/watch payments in your offline Groestlcoin Wallets. Groestlcoin Sentinel is compatible with any standard Groestlcoin address, BIP44 XPUB (Extended Public Key) BIP49 YPUB and BIP84 ZPUB.

Groestlcoin Sentinel is a great solution for anyone who wants the convenience and utility of a hot wallet for receiving payments directly into their cold storage (or hardware wallets).
Sentinel accepts XPUB's, YPUB'S, ZPUB's and individual Groestlcoin address. Once added you will be able to view balances, view transactions, and (in the case of XPUB's, YPUB's and ZPUB's) deterministically generate addresses for that particular wallet.
Groestlcoin Sentinel is a fork of Groestlcoin Samourai Wallet with all spending and transaction building code removed.

Changelog v3.5.02:
• Track Segwit BIP84 ZPUBs extended pubkeys
• Sweep Segwit BIP49 (P2SH-P2WPHK) and Segwit BIP84 (bech32) amounts into selected account/address
• Broadcast hex tx
• Added option to chose from Binance and Upbit as selected Exchange
• Added Korean Won as price option
• Receive address closes upon receipt of groestlcoin
• Fix EUR price

Changelog v2.7.1:
• Added refresh button
• Groestlsight blockexplorer support
• Haptic PIN entry support
• Track Segwit BIP49 YPUBs extended pubkeys
• Sweep P2PKH and Segwit P2SH-P2WPHK amounts into selected account/address
• Use https for blockexplorers

• Open source and unlicensed.
• No Private Keys - Groestlcoin Sentinel only uses Public Keys. It never knows or never asks for your Private Keys.
• Track multiple XPUB's, YPUB's, ZPUB's or Addresses - Add multiple XPUB's, YPUB's, ZPUBS's or addresses to your Groestlcoin Sentinel Watchlist to keep track of balances, transactions, and accept payments into any added wallet or address.
• Deterministically derives Groestlcoin Addresses - Deterministically derive new Groestlcoin addresses associated with your added wallets without needing access or knowledge to your private keys.
• Shareable QR code - Create payment request QR codes with address and amount encoded directly into the image. Share with anyone or any app directly from Groestlcoin Sentinel.
• The most popular Fiat currencies - Groestlcoin Sentinel can convert GRS to your local currency. Supported currencies are: USD, EUR, GBP, CNY, KRW and RUB
• Exchanges - Groestloin Sentinel can pull the current Fiat price from Cryptopia, Bittrex, Binance and Upbit.
• Secure PIN Code protection - Add a secure PIN code to protect access to Groestlcoin Sentinel. Optionally turn on PIN Scramble to help thwart against keylogger attacks.

It is appreciated if feedback of the following is provided:
1. Can you receive coins? (small amounts to avoid losing them)
2. Can you scan a QR code from another phone.
3. Can you broadcast a raw tx?
4. Can you view the transactions on the block explorer?
5. Are you able to export and restore the wallet?
6. Can you add multiple XPUB's or addresses in the wallet?
7. Can you add multiple YPUB's or addresses in the wallet?
8. Can you add multiple ZPUB's or addresses in the wallet?
9. Can you sweep P2PKH (legacy) paperwallet?
10. Can you sweep Segwit BIP49 (P2SH-P2WPHK) paperwallet?
11. Can you sweep Segwit BIP84 (bech32) paperwallet?
12. Does it calculate exchange rates properly in your local currency?

This application is unlicensed. There is no warranty and no party shall be made liable to you for damages. If you lose coins due to this app, no compensation will be given. Use this app solely at your own risk.

The application may have unfound bugs and problems. To leave feedback: 
1.  PM hashengineering on bitcointalk:;u=155038
2.  Email: [email protected]
3.  Reports of errors can also be posted in this topic.

Groestlcoin sentinel is available in the Google play store:

Source code: - The Groestlcoin Sentinel source code