Causes iCloud Back up not to work – 2Do - Todo List, Tasks & Notes Review

I have used this app for more than 10 years, I check my list >20 times a day. I would oh previously rated this 5 starts hands down. In the last 2 months it has caused my iCloud not to back up. After 5 hours of trouble shooting, they identified this app. I deleted app, and was once again able to back up my iCloud. Reinstall the app and it caused interference and I was no longer able to back up iCloud. Contact customer service and they have no solution from the upside. I’m post to make a difficult decision as I am considering no longer using the app because it interferes with the iCloud back up. The to do app back up to dropbox works great but if I can’t back up my entire phone that is a huge problem.
Review by 234478 on 2Do - Todo List, Tasks & Notes.