Jaxx Liiberty is available for iOS and Android, but there are also desktop versions for Windows and Linux. GazetaBitcoin never mentioned which one he uses unless I am wrong about that. I have never heard of Atomicdex, but I did see several people mention Unstoppable wallet in the past. It's important to mention that only the Android version of this app is reproducible. The iOS version isn't. Even though the code is public, Wallet Scrutiny claims they haven't been successful in reproducing the build.