Zumo: Bitcoin & Crypto WalletGoogle Play
Our wallet review process
We examine wallets starting at the code level and continue all the way up to the finished app that lives on your device. Provided below is an outline of each of these steps along with security tips for you and general test results.
Application build test result
💰 Provides full ownership of funds - your crypto is only owned by you!
sounds like non-custodial but
👮 Accounts are activated after an ID check!
doesn’t. Then again
📵 Lost your device? Reinstall, Login, & use your Backup Phrase to regain access
says something about “Backup Phrase” but if you have to “Login” first, we wonder if that backup phrase is shared with a server or if it is a BIP39 mnemonic at all.
Your Private Keys are managed on device, crypto currency is stored securely on the blockchain, and all of our codebase is developed in-house.
Again, this does not say anything about the keys being exclusively being on the device. Also what is that claim about the codebase? Well, let’s see …
As a non-custodial wallet, all your crypto is stored on the Blockchain.
Now that is explicit. Let’s see if there is public source code available …
… but we can’t find anything on Google Play or their website. The verdict is thus: not verifiable.
Tests performed by Leo Wandersleb
Do your own research
In addition to reading our analysis, it is important to do your own checks. Before transferring any bitcoin to your wallet, look up reviews for the wallet you want to use. They should be easy to find. If they aren't, that itself is a reason to be extra careful.