How to edit cell when it is an URL/hyperlink on iOS?

I think the answer is to be sure to tap in white space after the link rather than on the link itself. But there may be a better answer.

Unfortunately, Omni has decided to just let this forum wither away. Questions go unanswered for days, weeks, months, even years. See @kcase posts in this thread: It's a pity Omni doesn't monitor its forums more closely!

So it seems your best bet is to email or telephone support the old fashioned way.