Cold wallets are the safest place to store crypto assets. I personally use the Trezor hardware wallet to store crypto assets, and Electrum which I installed on my mobile phone (Electrum is known to be safe according to several members here)
If you want to find some references regarding OP's wallet, you can open the wallet software child boards here:
https://bitcointalk.org/index.php?board=37.0lots of interesting and useful reviews there.