About
This Sudoku game focuses on teaching you advanced solving techniques. It offers classic and Sums modes with customizable difficulty. Earn in-game currency to unlock new themes without any forced ads.
What's New in Ninekeep
1.1.2
September 18, 2026
Ads now load for players who chose not to allow tracking. Until this update they could fail to appear, and when they did, the short video for an extra hint or a streak restore could not play. Nothing else in the game changes.
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FAQ
Does Ninekeep have ads?
Yes, Ninekeep contains advertisements. You can choose to watch a short video for an extra hint, or purchase 'Remove Ads' to permanently disable this option.
How much does Ninekeep cost?
Ninekeep is free to download. Basic features like hints, notes, and undo are included. Additional hints can be earned by watching ads or through a one-time purchase.
What devices does Ninekeep support?
Ninekeep is available on iPhone and iPad devices.
What is the age rating for Ninekeep?
Ninekeep has an age rating of 4+, making it suitable for a wide range of players.
How often is Ninekeep updated?
The latest version, 1.1.0, was released on August 19, 2026, indicating regular updates from the developer.
Can I play Ninekeep offline?
Yes, puzzles are generated on your device, allowing for offline play. The game does not require an internet connection to generate new boards.
What makes Ninekeep's hints unique?
Hints in Ninekeep name the technique used, show where to look, and explain the reasoning before placing any numbers. This educational approach helps players learn and improve their skills.
How does the 'Daily Ledger' work in Ninekeep?
The Daily Ledger seals one puzzle per day into your record as you complete it. It tracks your current streak, best times, and provides a visual overview of your recent performance.
