Clear ($5), the popular productivity app from Realmac Software, has updated to version 1.4. The update has introduced reminders for Clear — users can now set a date and time for each task within a list. Clear can sync the alerts across all devices. It’s also now possible to customize Clear’s sounds through in-app purchases. For $2, sci-fi or 8-bit sound effects can be added to the app. Clear+ users can get the sound packs for free. Doozer…