Habitori
Private habit tracker for iPhone and Apple Watch.
KanaFlip
Free on the App Store. Learn hiragana and katakana on iPhone with flashcards, quizzes, spaced repetition, a home screen widget, and daily reminders.
Monthfold
A multi-month calendar planner for iPhone, iPad, and Mac. See your year at a glance with months side by side and every day visible at once.
Zappsum
Mental math training for iOS. Compete in Speed Match battles, drill weak spots with spaced repetition flashcards, and pass structured tests to climb your personal rating.
