O3 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
From the Play Store description:
A 100% non-custodial and multi-chain wallet with a friendly interface and high security. Aim to build a leading crypto wallet to make exchange, stake, storage & buy simple and safe. As the earliest light wallet in Neo ecology. We currently support Bitcoin, Ethereum, Neo, Ontology, Polkadot, Binance Smart Chain, and Huobi ECO Chain.
To verify this we installed the app. Users may import existing crypto wallets by entering the mnemonic or private key, and upon creating a new wallet you are given the option to immediately back it up and copy the 12-word phrase.
On the homepage, O3 claims:
O3 is an open source project, dedicated to making the vision of the Smart Economy a reality.
The Github account has a repository named OzoneWalletIOS. However this repository is for the IOS version of the app.
Notably, the last commit on its repository was dated September 12, 2019. On the other hand, as of this day the Play Store app was last updated on July 1, 2021.
According to the our methodology
“Up to date” strictly means that any instance of the product being updated without the source code being updated counts as closed source. This puts the burden on the provider to always first release the source code before releasing the product’s update.
Therefore, since the O3 repository does not even include the Google Play source code for their app and only has the IOS version which was last updated two years ago we have to label this as a wallet with no source.
Tests performed by Daniel Andrei R. Garcia
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.