Update
Date:30 October 2020
Fake Atomic Wallet has been removed from
Google Play Store. Thanks all of you who reported against that fake wake wallet.
Always be careful.
Don't put your mnemonic anywhere you don't trust. Always verify the source of Wallet. If you use Electrum Wallet, check the GPG Signature after download. If you don't know how to verify GPG Signature, check this guide
https://electrum.org/#downloadBe safe. Be happy