lets say you were using offline hardwere wallet, lets say imToken. And our coins are very secure from hackers in this offline wallet.
And then one day the ImToken app ( company ) will get bankrupt or just close... so there will be no Imtokenapp anymore. What then ?
We loose all our coins on our offline ImToken wallet, or what ?
I think that offline wallet needs to have a private key or im wrong ? If you have the private key you still have your bitcoins
Yeah, you would simply need to sweep the private keys into a new wallet, or add it to your existing one. Every hardware wallet should have a feature such as this, as I understand.