CertiTux

Going Balls is a hyper-casual arcade game about rolling a ball down increasingly complex tracks with single-finger controls. Highly addictive but heavily ad-supported and requires an internet connection.

Step counter that saves battery life

A word search puzzle game with 2000+ levels, works offline and supports 8 languages including Russian.

Interval fasting tracker with timer, weight tracking and scientific articles. Claims rapid weight loss without diets, but effect confirmation in reviews is subjective and user-dependent.

ClassDojo is a platform for teacher-parent communication with student behavior tracking features, gamification elements (points, island), but with issues in registration, attendance saving, and lacks grading and homework assignment functions.

Contains the following offline maps (no additional download required):

Don't Fly Without This App — WSJ • Finalist for App of The Year • Winner of Apple Design Award • Made for passengers first

A minimalist diary for manual tracking of expenses and income without bank connection, featuring categories, statistics, and local device storage.