Confirming Goodtask Doesn't Work on High Sierra (OS 10.13)

[GoodTask]

Hi @Melissa_Morrow, thanks for using GoodTask.

As described on below post, if you upgrade database on iOS 13, it won't sync with previous iOS versions and macOS versions. That means upgraded database only works on iOS 13 and macOS Catalina.

Things to know about iOS 13 and macOS Catalina

Now the beta season is close to an end and the new OS's will start shipping from September 19th. Current release schedule that Apple announced is below. iOS 13 : September 19th iOS 13.1 & iPadOS : September 24th macOS Catalina : October There are things that you need to be cautious about with the new OS update. Data will not sync between devices using upgraded database and the ones before When you update any of your device to the new OS and open Reminders app, it'll ask you if you will upgr…

Existing database will sync by themselves but you can't go back to make it work between latest OS's and previous ones.

The solutions you can take to make your devices sync are below 2.

1. Make a new iCloud account on pre-iOS13 device and do not upgrade the database on iOS 13. By doing this, you can sync data between pre iOS 13 devices and iOS 13 devices. This will not let you use new Reminders app features on iOS 13 devices but if sync matters, this will be better. Although if you have already upgraded the database, there is no way to go back. That's why you need to make a new account and that might be a hassle.

2. Use Outlook.com or other CalDAV server as database for Reminders. You can connect account to Reminders app on default Settings app - Passwords and Accounts and it'll work on all devices including GoodTask.

Thanks!