One & Three app icon

Apps Like One & Three for iPhone and iPad

by Scott Curry★ 5.05 ratingsProductivityFreeData updated 2026-09-06

Ranked alternatives

Showing 621–640 of 1,000 ranked alternatives.

  1. Backtrack app icon

    Backtrack

    Zixiang Zhang

    Build checklists and track progress

    Create structured workflows for complex tasks with hierarchical checklists. Track progress through step-by-step execution. Set reminders and repeat tasks automatically. Sync across devices and access history for future reference.

    ★ 0.00 ratingsProductivityFreeData updated 2026-09-06
  2. Streak21 app icon

    Streak21

    Wuhan smart mofun Technology Co., Ltd.

    ★ 0.00 ratingsLifestyleFreeData updated 2026-09-06

How we rank alternatives

Apps are ranked by functional similarity, category fit, rating confidence, and popularity.