Can I restore an iOS purchase?

2Do for iPhone and iPad is a paid App Store app. If you already bought it, open the App Store with the same Apple ID you used for the original purchase and download it from your purchased apps.

The optional Email-to-2Do add-on is also tied to your Apple ID. If an add-on purchase is not recognized, make sure the device is signed into the Apple ID that bought it and try the App Store purchase restore flow shown by iOS.