You have a risk that wallet of satoshi just stops working/banned from App Store(unlikely).
Unlikely that it happens in the next hour? yes. Unlikely that it happens in the next month? maybe yes Unlikely that it happens in one year? a bit more likely Unlikely that it happens in 5 years? I'd say likely How about 10 years? quite likely I'd say.
The longer you go back in time the less likely you find a custodial service that has not rugged their customers actually. Just keep that in mind and don't sleep at the wheel.
Unlikely that it happens in the next hour? yes.
Unlikely that it happens in the next month? maybe yes
Unlikely that it happens in one year? a bit more likely
Unlikely that it happens in 5 years? I'd say likely
How about 10 years? quite likely I'd say.
The longer you go back in time the less likely you find a custodial service that has not rugged their customers actually. Just keep that in mind and don't sleep at the wheel.