Is your Bitcoin wallet secure?

Wallet Scrutiny is a project aimed at improving the security of Android Bitcoin Wallets.

What protects your Bitcoins from Hackers?

hacker Do you own your Bitcoins or do you trust that your app allows you to use “your” coins while they are actually controlled by “them”? Do you have a backup? Do “they” have a copy they didn’t tell you about? Did anybody check the wallet for deliberate backdoors or vulnerabilities? Could anybody check the wallet for those?

We try to answer these questions for Bitcoin wallets on Android.

Read about our methodology to understand in more detail.

As featured on …

De Bitcoin Show Episode 36: Money losing its meaning

Bitcoin & Co. Leo Wandersleb: Bitcoin Wallet Security to Avoid Exit Scams

Bitcoin Takeover Podcast S5 E2: Leo Wandersleb on WalletScrutiny & Why Samourai Isn’t That Great

The Honey Badver Diaries Episode 33: Leo Wandersleb, Viña del Mar (Chile)

Bitcoin Takeover Podcast Leo Wandersleb: La seguridad de las carteras solo mejorará si los usuarios se preocupan

Bitcoin Live Bitcoinlive with Leo Wandersleb on wallet security

Satoshi en Venezuela Hablemos de Bitcoin - Bitcoin y Monederos, con Leo Wandersleb (Wallet Scrutiny)

All wallets ordered by verifiability, downloads and ratings

Reproducible when tested

[+]

Bitcoin Wallet (Schildbach)

[+]

Mycelium Bitcoin Wallet

[+]

Green: Bitcoin Wallet

[+]

AirGap Vault - Tezos, Cosmos, Ethereum, Bitcoin

[+]

UNSTOPPABLE - Bitcoin Wallet

[+]

ABCore

Not verifiable!

[+]

Blockchain Wallet. Bitcoin, Bitcoin Cash, Ethereum

[+]

BRD Bitcoin Wallet. Cryptocurrency, Bitcoin Cash

[+]

BitPay – Secure Bitcoin Wallet.

[+]

Electrum Bitcoin Wallet

[+]

Bitcoin Wallet - Airbitz

[+]

Edge - Bitcoin, Ethereum, Monero, Ripple Wallet

[+]

Coin Bitcoin Wallet

[+]

Trustee Wallet - best bitcoin and crypto wallet

[+]

Bitcoin Wallet Blockchain

[+]

Samourai Wallet

[+]

BlueWallet Bitcoin Wallet

[+]

Eclair Mobile

[+]

BLW: Bitcoin and Lightning Wallet

[+]

Bitcoin Paper Wallet

[+]

HODL Wallet : Bitcoin Wallet

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Phoenix : The Bitcoin wallet from the future

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Muun - Bitcoin and Lightning Wallet

[+]

Melis Bitcoin, Bitcoin Cash, Litecoin Wallet

[+]

Bitcoin Wallet for COINiD

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COINiD Vault

[+]

Breez: Lightning Network Client & Point-of-Sale

[+]

Lightning: Fast Bitcoin Wallet

[+]

Zap: Bitcoin Lightning Wallet

No source!

[+]

Trust Crypto Wallet: Bitcoin Ethereum Tron XRP PAX

[+]

Coinomi Wallet :: Bitcoin Ethereum Altcoins Tokens

[+]

Bitcoin Wallet by Bitcoin.com

[+]

Coinbase Wallet — Crypto Wallet & DApp Browser

[+]

Enjin: Bitcoin, Ethereum, Blockchain Crypto Wallet

[+]

Exodus Crypto Wallet

[+]

Bitcoin Wallet & Ethereum Ripple Tron EOS

[+]

Cobo Wallet: Bitcoin, Ethereum, Dash, XRP, XLM

[+]

Bitcoin Wallet Totalcoin - Buy and Sell Bitcoin

[+]

Jaxx Liberty: Blockchain Wallet

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Infinito Wallet - Crypto Wallet & DApp Browser

[+]

Lumi Bitcoin and Crypto Wallet

[+]

Eidoo: Bitcoin and Ethereum Wallet and Exchange

[+]

Sylo - Smart Wallet & Messenger

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Guarda Cripto Wallet Bitcoin, Ethereum, Zcash, XRP

[+]

Bitpie Wallet - Bitcoin USDT ETH EOS BCH TRON LTC

[+]

Monarch Wallet

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DoWallet: Bitcoin Wallet. A Secure Crypto Wallet.

[+]

Paytomat Wallet: Bitcoin, Ethereum, EOS, tokens

[+]

ZenGo: Crypto & Bitcoin Wallet

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ZelCore

[+]

Lunes Wallet - Lunes, Bitcoin, Litecoin, Buy BTC

[+]

Magnum Wallet – Bitcoin, Ethereum, Crypto Exchange

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Evercoin: Bitcoin, Ripple, ETH

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PumaPay Blockchain Wallet 4 Bitcoin & Crypto Coins

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ViaWallet - Multi-chain Wallet

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AnkerPay: Blockchain Crypto Wallet – BTC, ETH, LTC

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iWallet - blockchain wallet for Bitcoin, Ethereum

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PolisPay - Cryptocurrency wallet

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Chameleon Pay

[+]

Ownbit - Blockchain Wallet

[+]

Casa Keymaster

Custodial!

[+]

Coinbase – Buy & Sell Bitcoin. Crypto Wallet

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Coins.ph Wallet

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Zebpay Bitcoin and Cryptocurrency Exchange

[+]

Xapo

[+]

Binance: Bitcoin Marketplace & Crypto Wallet

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eToro

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Luno: Buy Bitcoin, Ethereum and Cryptocurrency

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Crypto.com - Buy Bitcoin Now

[+]

Unocoin Wallet

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Uphold: buy and sell Bitcoin

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Huobi Global

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Paxful Bitcoin Wallet

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Abra: Bitcoin, XRP, LTC

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Bitcoin Wallet by SpectroCoin

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Gemini: Buy Bitcoin Instantly

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OKEx - Bitcoin/Crypto Trading Platform

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Remitano - Buy & Sell Bitcoin Fast & Securely

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Ripio Bitcoin Wallet: the new digital economy

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Bitcoin and Crypto Blockchain Wallet by Freewallet

[+]

Bitstamp – Buy & Sell Bitcoin at Crypto Exchange

[+]

Bitcoin Wallet - Buy BTC

[+]

Cryptonator cryptocurrency wallet

[+]

Bitcoin Wallet. Buy & Exchange BTC coin－Freewallet

[+]

Poloniex Crypto Exchange

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Kraken Pro: Advanced Bitcoin & Crypto Trading

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CoinPayments - Crypto Wallet for Bitcoin/Altcoins

[+]

Coinbase Pro – Bitcoin & Crypto Trading

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Bcoiner - Free Bitcoin Wallet

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TenX - Buy Bitcoin & Crypto Card

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Change Invest: Buy & Sell Bitcoin Commission-free

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COBINHOOD - Zero Fees Bitcoin Exchange & Wallet

[+]

HitBTC – Bitcoin Trading and Crypto Exchange

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Shakepay: Buy Bitcoin in Canada

[+]

SWFT Blockchain

[+]

Currency.com Exchange

[+]

BitMart - Cryptocurrency Exchange

[+]

CoinEx

[+]

Coinsquare

[+]

Busha: Buy & Sell Bitcoin, Ethereum. Crypto Wallet

[+]

Conio Bitcoin Wallet

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Bitrefill - Use Bitcoin to buy Gift Cards & Topups

[+]

BuyCoins - Buy & Sell Bitcoin, Ethereum, Litecoin

[+]

Buda.com - Bitcoin wallet. Compra, vende, almacena

[+]

ILC / BTC Wallet

[+]

YouHodler - Crypto and Bitcoin Wallet

[+]

Bithumb Singapore - Global Cryptocurrency Exchange

[+]

Bit2Me - Buy and Sell Cryptocurrencies

[+]

PayWay Wallet

[+]

Wallet of Satoshi

[+]

Kraken Futures: Bitcoin & Crypto Futures Trading

[+]

BitWallet - Buy & Sell Bitcoin

[+]

STASIS Stablecoin Wallet

[+]

XZEN — Bitcoin Wallet and Exchange

[+]

BitBucks - Bitcoin Wallet for Instant Payments

[+]

Altcoin Bitcoin Trade

[+]

EBC Wallet

[+]

BuyUcoin - Popular Indian Crypto Currency Exchange

(more apps)

How many wallets are in each category?

0 Audited?
6 Reproducible
23 Not Verifiable
32 Closed Source
57 Custodial

How many users (downloads) are in each category?

0 Audited?
6107000 Reproducible
7108000 Not Verifiable
5149000 Closed Source
27757000 Custodial

Verdict	Reproducible when tested At the time of this analysis, the app on Google Play was reproducible from the code provided by the developers!
Downloads	5000000
Rating	4.0 stars by 23270 users
App size	2.8MB
Launched	2011-03-01
Reviewed	2020-06-20
Google Play	de.schildbach.wallet
Website	https://github.com/bitcoin-wallet/bitcoin-wallet
Source Code	https://github.com/bitcoin-wallet/bitcoin-wallet
Open Issue	https://github.com/bitcoin-wallet/bitcoin-wallet/issues/612

Verdict	Reproducible when tested At the time of this analysis, the app on Google Play was reproducible from the code provided by the developers!
Downloads	1000000
Rating	4.2 stars by 8563 users
App size	21MB
Launched	2013-07-01
Reviewed	2020-06-17
Google Play	com.mycelium.wallet
Website	https://wallet.mycelium.com/
Source Code	https://github.com/mycelium-com/wallet-android
Twitter	@MyceliumCom
Facebook	myceliumcom
Reddit	r/mycelium
LinkedIn	company/mycelium

Verdict	Reproducible when tested At the time of this analysis, the app on Google Play was reproducible from the code provided by the developers!
Downloads	100000
Rating	4.1 stars by 563 users
App size	27MB
Launched	2015-01-01
Reviewed	2020-04-26
Google Play	com.greenaddress.greenbits_android_wallet
Website	https://blockstream.com/green
Source Code	https://github.com/Blockstream/green_android/
Open Issue	https://github.com/Blockstream/green_android/issues/75
Twitter	@Blockstream
Facebook	Blockstream
LinkedIn	company/blockstream

Verdict	Reproducible when tested At the time of this analysis, the app on Google Play was reproducible from the code provided by the developers!
Downloads	5000
Rating	4.0 stars by 37 users
App size	8.0MB
Launched	2018-08-06
Reviewed	2020-04-28
Google Play	it.airgap.vault
Website	https://airgap.it/
Source Code	https://github.com/airgap-it/airgap-vault
Open Issue	https://github.com/airgap-it/airgap-vault/issues/13
Twitter	@AirGap_it
Reddit	r/AirGap

Verdict	Reproducible when tested At the time of this analysis, the app on Google Play was reproducible from the code provided by the developers!
Downloads	1000
Rating	4.6 stars by 183 users
App size	28MB
Launched	2018-12-18
Reviewed	2020-06-07
Google Play	io.horizontalsystems.bankwallet
Website	https://unstoppable.money/
Source Code	https://github.com/horizontalsystems/unstoppable-wallet-android
Open Issue	https://github.com/horizontalsystems/unstoppable-wallet-android/issues/2326

Verdict	Not verifiable! The app provider also shares code but we could so far not verify that the published code matches the published app!
Downloads	5000000
Rating	4.1 stars by 83995 users
App size	Varies with deviceB
Launched	2013-02-01
Reviewed	2019-10-29
Google Play	piuk.blockchain.android
Website	https://www.blockchain.com/
Source Code	https://github.com/blockchain/My-Wallet-V3-Android
Open Issue	https://github.com/blockchain/My-Wallet-V3-Android/issues/1256
Twitter	@blockchain
Facebook	blockchain
LinkedIn	company/blockchain

Verdict	No source! Without public source available, this app cannot be verified!
Downloads	1000000
Rating	4.5 stars by 53083 users
App size	31MB
Launched	2017-10-01
Reviewed	2019-11-20
Google Play	com.wallet.crypto.trustapp
Website	https://trustwallet.com/
Twitter	@trustwalletapp
Facebook	trustwalletapp

Verdict	Custodial! As the provider of this app holds the users coins, verifiability of the app is not relevant wether or not the funds are secure!
Downloads	10000000
Rating	3.8 stars by 188705 users
App size	36MB
Launched	2013-03-01
Reviewed	2019-10-30
Google Play	com.coinbase.android
Website	https://coinbase.com/
Twitter	@coinbase
Facebook	Coinbase
Reddit	r/CoinBase
LinkedIn	company/coinbase