Did you update to iOS 5 in the last 2 weeks? Chances are you did. We've received many reports of RE.minders not going off after the update and after some research, we've determined that Apple took it upon themselves to (randomly?) change the notification options for various apps after the update, RE.minder , GAME.minder and Better Clock included. Read on for the fix -OS 5 introduces the new notification center which handles all notifications, system-wide, a little differently. Notifications now default to a strip across the top of the screen that goes away after a short time. Without any other changes, this is how RE.minder will display notifications under iOS5. You can see whatever notifications you have waiting by swiping down from the top of the screen.
It's possible that Apple has set RE.minder's notifications to "off" on your device in the upgrade to iOS5. To fix the issue, go into the settings app and select notifications, then scroll down until you see RE.minder (Or RE.minder PRO+, GAME.minder or Better Clock). If any of these apps have been disabled, they may be all the way at the bottom of the list under "not in notification center".
Once you select the app, you will see the options for notifications: none, Banners (the new way) and Alerts (the old way). Just select the notification type you want to use and all your RE.minders should show up again. Also make sure to switch badges and sounds back to "on" if they have been switched to "off".
We're still trying to figure out why Apple would change these settings without letting us the developer or you the user know but for the moment, we just have to fix it manually on a case by case basis.
If that doesn't fix the issue, please do let us know by contacting us.