Sorry if this is already asked by some1,
as I rmb I heard of this before, but dunno is it just a scam...
is there any BTC wallet there will provide you interest?

You can Find Many Bitcoin Wallets That are Providing Interest On your Bitcoins But I Don't Trust that Type Of Bitcoin Wallets Because they Can Scam your when they got a Bigger Deposits From their Wallet Users....
I Also Suggest you to Don't Use that Type of Wallets Just Use Wallets Like Blockchain and Coinbase that are Safest to Store your Bitcoins....
Trusted wallets lick electrum, bitcoincore, blockchain and etc are providing interest to have bitcoin in your wallet. I have heard small wallet companies providing but its not seems like trusted source these kind interest providing companies involves in many ponzi schemes.