Notakto vs Poly Rules!
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Notakto
This strategy game is a twist on Tic-Tac-Toe where the goal is to avoid making three in a row. It offers multiple difficulty levels, from easy to a perfect AI, and allows for multi-board play. Compete in rated matches to climb the ranks.
- Tic-Tac-Toe variant gameplay
- Difficulty levels from Easy to Insane
- Advanced AI for perfect play
- Multi-board play (up to six)
- Rated play for competitive ranking
- Unlockable levels
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Simple to learn and hard to master, Notakto is a variation on Tic-Tac-Toe where BOTH players make X's and whoever makes three-in-a-row LOSES. Difficulty ranges from Easy to Insane. At Insane, the computer uses advanced game theory techniques to play a perfect game, so don't make any mistakes if you want to win! Unlock all levels and play on up to six boards at the same time! Choose Rated Play and work toward becoming Notakto World Champion. Reviews: ***** Fun and addictive! - This game is ingenious and fun! ***** Outstanding - Brilliant app. It's amazing how taking away a symbol and reversing the win condition can turn a trivial game into a fiendishly difficult addiction.
Poly Rules!
A challenging sorting game where the rules dynamically change as you progress. It offers increasingly complex scenarios to test your cognitive abilities. Researchers can inquire about using the game for studies.
- Dynamic rule changes
- Increasingly complex scenarios
- Cognitive benefit focus
- Research support available
- Log storage and analytics (coming soon)
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PolyRules is a challenging sorting game where the rules change as you play. As you progress through the game you will encounter increasingly more complicated scenarios that challenge you in ways you can't imagine. The current release is our first prototype and we will update the game semi-frequently as we move towards a design that features tried and true game design to facilitate the cognitive benefits this game aids to provide. Researchers who are interested in using this game for their own studies please reach out to us to us through our support page for more information on how to best use this App. We have several ways to support you including a central server to store logs and automatic analytics which will be implemented in the coming weeks.
Screenshots
Verdict
The clearest difference is update cadence: Poly Rules! at monthly against Notakto's every 22 months. Poly Rules! also leads on ratings volume (13 vs 3). Notakto's advantage is rating (5.0 vs 4.8) and iOS requirement (6.0 vs 12.0). On price, review sentiment, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Notakto holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 3 and 13 respectively. Written reviews point the same way: 86% of Notakto's written reviews are positive against 80% of Poly Rules!'s.
Notakto ships an update every 22 months, Poly Rules! monthly. The most recent releases landed on October 3, 2026 and September 24, 2026 respectively.
| Parameter | Notakto | Poly Rules! |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) — better | 4.8 (13 ratings) |
| Positive reviews | 85.7% of reviews — better | 80.0% of reviews |
| Number of ratings | 3 | 13 — better |
| Update frequency | Every 22 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 6.0 — better | 12.0 |
| Further details — not scored | ||
| Size | 28 MB | 111 MB |
| Age rating | 4+ | 4+ |
| Developer | Counterwave | Northeastern University Information Services |
Customer experience
Notakto
Poly Rules!
In-app purchases
Notakto
No in-app purchases
Poly Rules!
No in-app purchases
