Clumsy Ninja vs Idle 9 Months

How do Clumsy Ninja and Idle 9 Months compare on difficulty, ad pressure, in-app-purchase pressure and what real reviewers say? A side-by-side look, grounded in App Store data.

 Clumsy Ninja iconClumsy NinjaIdle 9 Months iconIdle 9 Months
GenreFamilyFamily
PriceFreeFree
Difficultyeasyeasy
Ad intensitylowhigh
In-app-purchase pressurelowmedium
Typical sessionmediumvariable
Rating4.8 / 54.8 / 5
Ratings count404,766202,756
Reviews say
What players like
  • Highly interactive character with unique reactions
  • Nostalgic childhood favorite for many players
  • Engaging progression system with belts and moves
Common complaints
  • Progress/save data loss when switching devices
  • App crashes on launch for some players
  • Unclear unlock mechanics for later ninja book levels
What players like
  • Educational content about pregnancy and fetal development
  • Calming, relaxing gameplay
  • Scientifically accurate stages
Common complaints
  • Extremely long wait times (9 real months or game-paced equivalent)
  • Intrusive ads every 30 seconds
  • Unclear progression and growth mechanics

Clumsy Ninja — Train and play with a lovably clumsy ninja friend through interactive gameplay and adventure quests. (rated easy difficulty, low ad pressure) Idle 9 Months — Simulate a realistic 9-month pregnancy journey from conception to birth, learning about fetal development along the way. (rated easy difficulty, high ad pressure)

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Data: Apple App Store, as of 2026-07-10. Last updated 2026-07-10.