This app was first launched on 6th August 2018 and currently has more than 1000 downloads, a 4.2 stars rating from 34 users and the latest APK (version 3.0.1) was from 16th December 2019.
We found these ways of contacting the developers:
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Please help us spread the word, asking AirGap Wallet - Ethereum, Bitcoin & Other Crypto to support verifiable builds via their Twitter!
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 bad coding practice. We cannot find and tell you all the dark secrets the wallet providers might have.
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.
This appears to not be a wallet as to our understanding, it does not hold any private keys but delegates that part to AirGap Vault without which it does not work.
AirGap Vault, the private key is generated and securely stored in the AirGap Vault app. You have to install AirGap Vault to use AirGap Wallet https://play.google.com/store/apps/details?id=it.airgap.vault
This appears to not be an app to send and receive bitcoins. We will probably remove this app from the project.