Checkonic is an easy-to-use checklist app first published on the App Store in 2017. In 2020, Giddyonics released version 2.0 of the app. This version made major changes to the user interface and allowed for unlimited items and lists. Features include:

List status bar for easily viewing how close each list is to completion

Large, easy to use checkboxes

Large, easy to read text

Unlimited items and lists

Color Shift: Users can optionally have the text of the to-do item switch from red to blue when the item is checked off