Sentinel

Sentinel Free App

Rated 4.44/5 (143) —  Free Android application by Samourai

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About Sentinel

Sentinel uses your bitcoin public keys to track balances of your offline and cold storage bitcoin wallets such as paper wallets, and hardware wallets. No private keys are ever requested or needed. You cannot spend with Sentinel, you can only track balances and create new deposit addresses. Now supports tracking Segwit enabled wallets!

- Remote Deposit allows you to accept bitcoin payments into your offline wallets.
- Compatible with any Bitcoin address or BIP 44/49 XPUB/YPUB (Extended Public Key) such as those created by Mycelium Wallet, Coinium, Ledger, and Trezor.
- Currency conversions for USD, GBP, EUR, CNY, RUB
- Currency prices from WEX, Localbitcoins.com, and Bitfinex
- Add an optional PIN code with PIN Scramble technology to help thrwart keylogger attacks

Sentinel is open source software. The code is available to review publicly on Github. Sentinel is provided by Samourai, the creators of Samourai Bitcoin Wallet

How to Download / Install

Download and install Sentinel version 2.6 on your Android device!
Downloaded 5,000+ times, content rating: Everyone
Android package: com.samourai.sentinel, download Sentinel.apk

All Application Badges

Free
downl.
Android
4.0+
For everyone
Android app

App History & Updates

What's Changed
- accept new YPUB format for BIP49 (Segwit) extended public keys
- added WEX
- sweep Segwit (P2SH-P2WPKH) addresses into the XPUB account or address of your choice
- support for Segwit BIP49 XPUBs (Trezor & Ledger)
- use bitcoind fee estimates for sweeping addresses
- sweep addresses into the XPUB account or address of your choice
- BIP32 (Bread Wallet) XPUBs
- BIP 148 & Segwit block explorer selections
- Receive address closes upon receipt of bitcoin
- Display QR code for addresses/XPUBs
Version update Sentinel was updated to version 2.6
More downloads  Sentinel reached 5 000 - 10 000 downloads
Version update Sentinel was updated to version 2.0.4
More downloads  Sentinel reached 1 000 - 5 000 downloads

What are users saying about Sentinel

X70%
by X####:

Cool idea, but doesn't auto update. This seems to only show the balance of the wallets at the time it was added. I've had additional BTC come in and it won't refresh. Been waiting for an update to fix this issue, or like a manual refresh button but I'll probably just use Blockfolio.

N70%
by N####:

Simple, secure, supports segwit. Very cool app. Occasionally has trouble updating fiat value. Please add more exchange options and support for AUD so us Aussie bitcoiners can use.

E70%
by E####:

Finally works on Segwit wallets, but does not update to reflect added BTC. Only shows the correct amount when the wallet is first added. Doesn't show newly sent btc after full confirmations and multiple days. This watch wallet sucks.

N70%
by N####:

Loving the app, the simplicity is excellent, i just have two small requests: could you add the option to turn off the "Are you sure you want to close sentinel?" question, and maybe currency denominations other than USD? thanks!

L70%
by L####:

Love the app, functionality and UI. Crashes a couple of times when trying to start the app until eventually it starts successfully. Hence 4 out of five stars.

N70%
by N####:

Good app but many people need a wallet and app which can support others coins too in a secure and private manner

W70%
by W####:

Damn you guys work fast! Trezor Segwit works flawlessly now! Thanks!

N70%
by N####:

Excellent app ! Support Segwit Ypub key ! Would give 5 starts if it has widget ! Thanks !

N70%
by N####:

Hands down the best.

N70%
by N####:

Nice app but seems like it's lacking in some basic features. My biggest complaint is simply.... Where is the actual Bitcoin price? I can see my wallet balance, but I don't know what the actual Bitcoin price per BTC is unless I do some math on my wallet balance. Seems like this would be the most basic feature and the first thing to be coded so I don't understand why it isn't there, it should be displayed at all times really.

R70%
by R####:

Tried to Scan and Manually enter xPUB from trezor beta site but Sentinel couldn't import it, kept erroring. Just wanted to share with others. Almost awesome. Bummer.

N70%
by N####:

Great app to keep track of your btc one thing that needs work is the price per BTC seems to be not really exact to the actual market nor does it display what the exchange to usd it's displaying.

N70%
by N####:

Had a hard time finding a wallet that would seemlessly support Segwit xpub watch only address... This works perfectly. Just wish it had Coinbase as an exchange option.

S70%
by S####:

Good app but really needs more currencies added

A70%
by A####:

I would give it 5 stars if they added Coinbase as an exchange option. Without it my wallet shows 8% higher than it really is

N70%
by N####:

Love the clean look and ease of checking wallet balance and transaction history. Scrambling the pin input is a great feature. It would be even better if there were more options for exchange source. Gemini would be my preference, but I'm sure there are just as many who would like to see Coinbase.

N70%
by N####:

Im having trouble with my segwit xpub with my ledger nano s, doesn't seem to work. A howto tweet would be great, thanks!!!

B70%
by B####:

Good app, but it doesn't provide widgets to quickly see the balance at all times.

N70%
by N####:

Good app, only 4 stars for not supporting euro conversion.

N70%
by N####:

No bitcoin cash support.

N70%
by N####:

Fantastic! Keeps getting better with every update!

N70%
by N####:

Please add Coinbase as an exchange option, and the current coin price to the main screen. Thanks.

N70%
by N####:

samurai team is #1

O70%
by O####:

Does what its mean to do, and does it excellently.

M70%
by M####:

Awesome app. Good for monitoring cold wallets. It even shows you the equivalent in USD.

N70%
by N####:

Perfect with Trezor on desktop. Recommended.

N70%
by N####:

Not working at all. Zero balance.

N70%
by N####:

It works great to display one address. But I don't see any way to add an additional address to monitor. The big blue "+" button does nothing. Also, the app is advertised to display the "street price" as well but nothing of the sort is displayed on any view that I can find. Android version 6.0.1 on Samsung Note 4; Sentinel version 2.1.

X70%
by X####:

Great watch only app. Used for three wallets, really fast and simple. Sometimes it crashes,but no big deal. Looking forward to try your wallet app, it'll be superb if your samurai wallet would support hardware wallets.

N70%
by N####:

Too bad it only supports few exchangers and USD for the fiat.

N70%
by N####:

Would be cool if it worked. For now I'll use Mycelium for the same functionality

N70%
by N####:

Great product from a stand up company. Keep doing what you're doing Samourai.

N70%
by N####:

Nicely done, makes it easy to get the total of multiple deterministic bitcoin wallets without requiring private keys. And will generate deposit addresses as needed. So it's convenient to have on a low-security device, since funds are never at risk. Would have been five stars except that it won't take multisignature addresses. So, if some of your funds are in multisig wallets, they will be missed from this app, and that can make a big difference in its usefulness. Also, this app won't exit no matter how many times the back button is used. This is very bad design, and in the future I'll cut more stars if this is not fixed.

N70%
by N####:

…but, because of the icon, I would never even looked at it if I haven't found it on reddit. *Seriously* make the icon simpler, better, prettier! It's such a terrible representation of your otherwise fantastic app! If you really want to keep your apps samurai-themed, focus more on samurai esthetic, some insignia or patterns related with them instead of (sorry, but) mediocre, yet fairly complex silhouettes. Also it would be good if you could use native authentication (fingerprint?) instead your internal one.

N70%
by N####:

The btc-e € ticker doesn't work. If u could please add a new one, maybe kraken btc/eur or bitcoin average would be awesome, tnx. Great app!! I love the icon!!

P70%
by P####:

Love the deposit feature. I hardly ever spend and never carry a hot wallet so this is ideal. Check my balance and call up receive addresses at will. Nice job!

O70%
by O####:

I can watch all my paper wallet without issues, awesome app. I just miss a notification screen I receive a deposit, I need to open it and see.

P70%
by P####:

Perfect for watching my cold storage. It's easy to use and there is no ads. I don't know what to say, thank you so much!

C70%
by C####:

Hi, I am unable to scan more than 1 wallet even by tapping the+ sign on bottom right? Is there another way to add more watching wallets?

J70%
by J####:

I am MISSING 0.00077212 bitcoins all of a sudden i had my bitcoins this morning and now NO BITCOINS AVOID AVOID AVOID


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Rating Distribution

RATING
4.45
143 users

5

4

3

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