Arimaa Trainer vs Diagonal Duel
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Arimaa Trainer
Learn and master a deep strategy board game with simple rules suitable for all ages. Explore millions of unique game possibilities and challenge yourself with increasing AI difficulty levels. Features include a video tutorial, score tracking, and the ability to save and replay games.
- Video tutorial for learning rules
- Multiple difficulty levels
- Handicap game support
- High score and rating tracking
- Pass and play mode
- Load, save, and email games
- Replay games from any position
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Arimaa is one of the fastest growing modern strategy games. Rules are simple and intuitive enough for kids to play easily, yet there is more than enough strategic depth to satisfy the most demanding gamer. If you enjoy challenging games like Chess, Checkers, Go, or Shogi, discover Arimaa and see why it was chosen in the Discovery Channel's list of the Top 10 Mind-bending Strategy Games and also recommended by Scientific American MIND magazine. “The rules are simple enough for kids to learn, and the game was creative and engaging.” —Frederik Joelving; Scientific American Mind magazine With millions of opening setups to choose from, every game requires creative thinking right from the beginning and no need to memorize openings. It's a never ending puzzle, each game is different. In just the first 10 moves of Arimaa there's more possible games than there are atoms in our universe. “Because the number of possible moves in an Arimaa position (roughly 20,000) is much higher than in chess (about 30 or so), even the fastest computers will not be able to search very far into the tree of possibilities.” —R. Wayne Schmittberger; GAMES magazine This Arimaa app includes a video tutorial to teach the rules of the game making it easy to get started. There are increasing levels of difficulty to help you build your skill, and a score to let you know how well you played. Try beating the AI faster or by losing fewer pieces to top your high score. The app is loaded with features and settings to help you learn this addictive new game. Features: • video tutorial to teach the rules • several difficulty levels • ability to play handicap games • keep track of high scores • keep track of ratings • mode to pass and play with a friend • option to auto-rotate the board between moves • option to auto-rotate the game between moves • option to pause between moves • option to play rated games • option to use a move timer • ability to load and save games • ability to email the game • ability to replay a game from any position • dedicated full screen mode for iPad Awards and Recognition: • Scientific American MIND magazine: Brainy gift recommendation • Discovery Channel's HowStuffWorks: Selected as 3rd most mind-bending game • Parents Choice: Approved award • Creative Child magazine: 2010 Game of the Year This app is provided in compliance with Section 2 of the Arimaa Public License. License #100520.
Diagonal Duel
Engage in a strategic board game similar to Connect Four, but with a unique 45-degree rotated board. Challenge a computer opponent, play with a friend on the same device, or compete in online ranked matches.
- 45-degree rotated board gameplay
- Play against AI (levels 0-100)
- Local two-player mode
- Online ranked matches
- Similar to Connect Four
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Diagonal Duel against a level 0-100 computer, with two players on the same device, or in ranked online games! Diagonal Two Squared is a game similar to Connect Four but essentially with the board rotated at 45 degrees. This allows for play on two "sides" from the start instead of the original game, on which you only play only along the bottom. The app allows for two players to play on the same device, to select a level from 0 to 100 computer to play against, or to play against random opponents.
Screenshots
Verdict
The clearest difference is price: Diagonal Duel at Free against Arimaa Trainer's $0.99. Diagonal Duel also leads on rating (4.8 vs 4.1) and update cadence (every 2 weeks vs every 4 months). Arimaa Trainer's advantage is ads (none vs shown) and iOS requirement (13.0 vs 15.1). On ratings volume, in-app purchases and device support 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
Diagonal Duel is free to download; Arimaa Trainer costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Diagonal Duel holds the better App Store score, 4.8 against 4.1. Both are backed by a comparable volume of ratings — 8 and 20 respectively. Written reviews point the same way: 73% of Arimaa Trainer's written reviews are positive against 86% of Diagonal Duel's.
Arimaa Trainer ships an update every 4 months, Diagonal Duel every 2 weeks. The most recent releases landed on October 3, 2026 and September 27, 2026 respectively.
| Parameter | Arimaa Trainer | Diagonal Duel |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 4.1 (8 ratings) | 4.8 (20 ratings) — better |
| Positive reviews | 73.3% of reviews | 85.7% of reviews — better |
| Number of ratings | 8 | 20 — better |
| Update frequency | Every 4 months | Every 2 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Paid | Ad-supported — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 19 MB | 21 MB |
| Age rating | 4+ | 4+ |
| Developer | Martti Juotasniemi | Brian Savidge |
Customer experience
Arimaa Trainer
Diagonal Duel
In-app purchases
Arimaa Trainer
No in-app purchases
Diagonal Duel
No in-app purchases









