Josh has outlined the problems with the app from a forum operator's point of view:
https://tortoiseforum.org/threads/i...ess-tortoise-forum.162257/page-2#post-1547407
The problem lies with the third party developer, Tapatalk.
The solution is a custom app developed/maintained by Tortoiseforum.org. Maybe a Kickstarter/GoFundme or similar could be started to raise money to hire developer(s) to produce this app for both Apple/Android.
I personally wouldn't contribute. I have used both the app and mobile website and prefer the latter.
I have seen a few other forum apps in the app store/play store that claim to work with most forums of this type. How about some of you try them out and post your findings here for those who simply must use an app for everything instead of a web browser?