Checkmark is a location-based reminder iPhone app. True, ever since iOS 5 and Siri we’ve had the ability to add simplistic reminders via Apple’s built in apps. Yet entering a new reminder remains cumbersome. That’s where Checkmark shines – a new reminder is three quick taps away, and the UI is clean and easily digestible.

It’s currently $2 in the App Store. If you occasionally need quick reminders when you leave/arrive at work or home, it’s a good buy.