The home screen of the Clue app (Image credit: Clue). Clue's half-atom, half-flower icon doesn't scream "period tracker," making it a discreet addition to your home screen.

Calory is available on the App Store and Mac App Store. Highly recommended set of apps if you’re looking for help with dieting and staying on track. Add 9to5Mac to your Google News feed.

Enter the aptly-named Expense, an intuitive, beautifully designed, free expense-tracking app for Apple mobile devices running iOS 8 and up. How It Works The reason I love Expense so much is ...