This fake app was release in July 02, 2020 with over 1000 downloads.

It is a fake wallet because it was released in July but claiming to have been existing since 2011 which was the year original electrum wallet was released. Electrum wallet is an online wallet but this one claims to be a cold wallet to safe private key offline. I have never heard of a paper wallet that save private key on mobile devices before, but this fake electrum wallet claims to work in such a way.
Also it claims that the Private key can remain offline in a way users can go online with watch-only wallet.
And, normally, electrum wallet can be used as cold wallet in which two devices will be used, one for cold wallet and the other as watch-only wallet, but the wallets app that will be downloaded for this is still the normal original electrum wallet on electrum.org in which the signature can also be verified on the site.
This is just another fake electrum but with another scam tactics. Downloading the real electrum from
electrum.org is the best rather than using third party sites like Google play store to download it.