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Bitcoin Wallet by Bitorzo.com
(Actually "Bitcoin Wallet". For details read below.)

latest release: 3.1.3 ( 3rd January 2021 ) last analysed  11th April 2021 Failed to build from source provided! 
3.9 ★★★★★
28 ratings
1 thousand
22nd July 2020

Jump to verdict 

Do your own research!

Try out searching for "lost bitcoins", "stole my money" or "scammers" together with the wallet's name, even if you think the wallet is generally trustworthy. For all the bigger wallets you will find accusations. Make sure you understand why they were made and if you are comfortable with the provider's reaction.

If you find something we should include, you can create an issue or edit this analysis yourself and create a merge request for your changes.

The Analysis 

This app is self-custodial:

Main features:

  • Private keys never leave your device, and strongly encrypted on it!

and a Bitcoin wallet (the app’s name is “Bitcoin Wallet”).

On their website there’s also a link to the source code on GitHub and there we can find … build instructions:

Android (armeabi-v7a): flutter build apk
Android (arm64-v8a): flutter build apk --target=android-arm64

So lets see:

$ git clone https://github.com/Bitorzo/Bitorzo
$ cd Bitorzo
$ docker run -it --volume $PWD:/mnt --workdir /mnt --rm beevelop/cordova bash
# apt update
# apt install xz-utils -y
# tar xf ./flutter_linux_2.0.1-stable.tar.xz 
# flutter/bin/flutter build apk
Because every version of manta_dart from git depends on decimal ^1.0.0 and bitorzo_wallet_flutter depends on decimal ^0.3.5, manta_dart from git is forbidden.
So, because bitorzo_wallet_flutter depends on manta_dart from git, version solving failed.
Running "flutter pub get" in mnt...                                     
pub get failed (1; So, because bitorzo_wallet_flutter depends on manta_dart from git, version solving failed.)

This message is slightly different to what Emanuel got but we both failed to build the app from the source with the build instructions as provided.

The app is therefore not verifiable.

(lw, em)

Verdict Explained

We encountered a build error while compiling from source code!

As part of our Methodology, we ask:

Can the product be built from the source provided? If not, we tag it Build Error! 

Published code doesn’t help much if the app fails to compile.

We try to compile the published source code using the published build instructions into a binary. If that fails, we might try to work around issues but if we consistently fail to build the app, we give it this verdict and open an issue in the issue tracker of the provider to hopefully verify their app later.

The product cannot be independently verified. If the provider puts your funds at risk on purpose or by accident, you will probably not know about the issue before people start losing money. If the provider is more criminally inclined he might have collected all the backups of all the wallets, ready to be emptied at the press of a button. The product might have a formidable track record but out of distress or change in management turns out to be evil from some point on, with nobody outside ever knowing before it is too late.