Zumo - Bitcoin Wallet App - Buy, Store, & Transfer

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This Android app currently has more than 100 downloads, a 4.5 stars rating from 19 users and the latest release is version 2.6.0.

Our last analysis was done on 22nd May 2020 based on data found in their Google Play description and their website.

We found these ways of contacting the developers:

Help spread awareness for build reproducibility

Please help us spread the word, asking Zumo - Bitcoin Wallet App - Buy, Store, & Transfer to support reproducible builds via their Twitter!

Disclaimer

The following Analysis is not a full code review! We plan to make code reviews available in the future but even then it will never be a stamp of approval but rather a list of incidents and questionable coding practice. Nasa sends probes to space that crash due to software bugs despite a huge budget and stringent scrutiny.

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.

The Analysis

Verdict Explained

This app still needs to be evaluated but before that, gain some users. In the Play Store there is an infinite list of "wallets" and we focus on those that have the biggest impact if things go wrong.