GPG4Win equivalent for iOS

I know this may be off topic, but can anyone recommend an equivalent program for iOS (iPhone/iPad)?

Thanks

Hi Mark,
our friends from OpenPGP.org have their recommendations here:
https://www.openpgp.org/software/#ios

(As we do not have relevant first hand experiences with the mentioned software there,
this is just a link to a list and not a recommendation.)

Regards,
Bernhard

My personal reccommendation is: https://gpgtools.org/ They offer support and so on, IMO they do good work.

Edit: Sorry, after posting I realized that you asked for IOS and not MacOS. Gpgtools is for MacOS.

Thanks for the suggestions. There looks like there might be one that will work.