you cant recover the accounts(which you use to login) from this app, there is no way to recover because there is no option available unless and until there are two devices with you. this app cant be used in the pc either, what if you uninstalled it by mistake and if you reinstall, all your accounts are gone and lost, i dont recommend using this app.. expected more ways to recover lost accounts from this app but very disappointed.. neither can you recover this app with your gmail because there are not linked to each other,.. it is like trusting this app in the beginning and then no point in trusting this app because all your accounts are gone.. atleast if this authenticator was linked to our gmail and if there was a way to recover our deleted accounts it will definitely help lotts of ppl pls add a backup method so that we dont loose all our accounts by trusting your app