How can we help?
Does Sumi Ninja need an internet connection?
No. Battles, ninjas and progress all run on your phone, so you can play offline. When you are online, the game uses the connection only to show ads.
Can I play with friends?
Not yet. Battles are you and two AI allies against three AI opponents.
Are there ads?
Yes. Sumi Ninja is free and shows ads from Google AdMob when you are online. Most are optional — watch one after a battle to double your coins — and a full-screen ad may appear now and then between battles, never during a fight. Ads are not personalized.
Are there in-app purchases?
No. There is nothing to buy. Coins are earned by playing and unlock Ougi inside the game.
How do I unlock a second Ougi?
Open a ninja’s profile and spend coins on the sealed Ougi. Win battles to earn more coins.
Where is my progress saved?
On your phone only. Uninstalling the game or clearing its data deletes your progress, and it cannot be restored.
Delete your dataDoes the game collect any data?
Your progress stays on your phone and is never sent to us. Google AdMob, which shows the ads, collects some device data to deliver ads and prevent fraud. The privacy policy explains exactly what.
Privacy policyWhich phones are supported?
Android phones and iPhones running iOS 15 or later. Minimum versions are listed on each store page when it goes live.
I found a bug. How do I report it?
Email [email protected] with your phone model, the game version (Credits screen) and what happened just before the problem.