head to head/Productivity & Utilities
Shadow OS vs Sufuku
Neck and neck on boosts. Profiles, pricing and deals below.
Shadow OS
Behavioral Insight from Your Real Decisions
community boosts
⚡ 0
pricing
Freemium
what it is
A behavioral insight app grounded in Jungian psychology. Shadow OS tracks your choices, your state, and what happens next — so you can see what keeps repeating.
Sufuku
A daily number puzzle
community boosts
⚡ 0
pricing
Freemium
what it is
Sufuku is a daily logic puzzle like sudoku, except each number appears as many times as its value. One solution, no guessing, a new puzzle every day.