Not the best!
The app is good for what it does but overall it could be better. It would be nice to get more font options, classier ones and flexibility in changing the size and font of a word within a sentence/quotes. And the edit icons are confusing. It needs some serious updates for sure! Either way not bad for $1.79!
Kk1122 about
InstaMessage - Post Text Messages on Instagram, v9.0.5