Comparison

SaioApp vs Othello Sensei

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

SaioApp

Master the game of Othello with the world's strongest engine. Analyze moves, study player strategies, and access a vast library of game data. Designed for professionals seeking the ultimate competitive edge.

Highlights
  • Play against the strongest Othello engine
  • Analyze best and all moves
  • Access WThor games archive
  • Study specific players
  • Endgame Tutor mode
  • In-app purchase for large move library
  • Study mode for openings
Features
Read full description

Saio (System Artificial Intelligence Othello) The strongest Othello engine in the world developed in about 15 years by the 3 times Italian Othello Champion Romano Benedetto. Now available on your iOS Device with all his features: - Play vs the engine at specific time limit or fixed depth of search - Eval bests moves - Eval all moves - Show detailed Library values - WThor games archive with all games of official tournaments from 1977 - Show statistics from games archive - You can study a specific player directly on the board - Regressive Analysis of all the games - Endgame Tutor mode, Single good move and single line to avoid lose the game - InApp buy of the INCREDIBLE BIG Library 8GB with 180M moves, 240.443 draw lines - Rotate board - Load games from list of moves in the clipboard - Export list of moves to the clipboard to easy share in chats - Show transcript of the game - Edit board - Fix the line that Saio play - Select of random XOT opening - Study mode to help to memorize openings - Gameplay mode with rank level of difficult - Middlegames play mode with rank points and level of difficulty - Endgames play mode with rank points and level of difficulty - Online classify for ranked games play mode Who buyed the FULL Library now can: - Expand the Library, manually or automatically (press for 3 seconds on Library) - Expand fixed lines - Automatically fill nodes not yet present on the line - Can start from the standard library too - Merge the incremental library to the main library - Download WThor DB Update automatically The engine of Saio is actually the STATE OF THE ART of the informatic knowledge about search in game trees, and is REALLY accurate to eval moves. SaioApp contain all the firsts 12 moves of his INCREDIBLE BIG Library of moves. After you can buy the FULL 8GB Library developed in about 10 years and continue to be expanded. The FULL library actually permit to Saio to NEVER LOSE A GAME, using the datagram algorithm build during Ph.D Thesis "How to build a library to never lose a game". You can explore all the library values and know what sequences are really draw, lose or win. You will have the definitive knowledge of the Othello moves with they real values. Designed for Professional Players that need the best engine ever, created to beat all others engines. Thanks to Alessandro Di Mattei and Paolo Scognamiglio for they support to be first in the world to buy SaioApp and to contribute to Test and add features. http://www.romanobenedetto.it/tesi.pdf

About

Othello Sensei

Master the game of Othello with this intuitive app. Analyze top player games, discover new strategies, and play against the computer. Identify your mistakes and refine your gameplay to become a stronger player.

Highlights
  • Mistake checking
  • Strategy improvement
  • Learn new openings
  • Analyze top player games
  • Play against computer
  • Analyze XOT games
Read full description

A strong, responsive, and user-friendly app to study the Othello game, that allows you to: - Check your mistakes and improve your strategy. - Learn new openings. - Analyze games from the top players in the world. - Play against the computer. - Play and analyze XOT games.

Screenshots

SaioApp4 screens
Othello Sensei3 screens

Verdict

The call

The clearest difference is price: Othello Sensei at Free against SaioApp's $18.99. Othello Sensei also leads on in-app purchases (none vs 1). SaioApp's advantage is rating (5.0 vs 3.0) and update cadence (every 2 weeks vs every 3 months). On ratings volume, ads 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

CostPrice · In-app purchases · Ads · Monetization

Othello Sensei is free to download; SaioApp costs $18.99 up front. SaioApp sells 1 one-off in-app purchase. Othello Sensei asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

SaioApp holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 2 respectively. Written reviews point the same way: 67% of SaioApp's written reviews are positive against 50% of Othello Sensei's.

UpkeepUpdate frequency

SaioApp ships an update every 2 weeks, Othello Sensei every 3 months. The most recent releases landed on November 2, 2026 and October 30, 2026 respectively.

Scorecard7 real differences · 3 level
SaioApp versus Othello Sensei: the parameters behind the verdict, then further details
ParameterSaioAppOthello Sensei
Price$18.99Free — better
Rating5.0 (2 ratings) — better3.0 (2 ratings)
Positive reviews66.7% of reviews — better50.0% of reviews
Number of ratings22
Update frequencyEvery 2 weeks — betterEvery 3 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Mac — better
Requires iOS10.1 — better13.0
Further details — not scored
Size263 MB85 MB
Age rating4+4+
DeveloperBenedetto RomanoMichele Borassi

Customer experience

SaioApp

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive66.7%
Neutral33.3%
Negative0.0%

Othello Sensei

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive50.0%
Neutral50.0%
Negative0.0%

In-app purchases

1 purchases

SaioApp

One-time1
  • Saio Full Library$44.99
None

Othello Sensei

No in-app purchases

Questions

Is SaioApp free?
SaioApp costs $18.99, and also offers in-app purchases.
Is Othello Sensei free?
Othello Sensei is free to download, with no in-app purchases.
Which has better reviews, SaioApp or Othello Sensei?
SaioApp is rated higher. SaioApp averages 5.0 out of 5 from 2 ratings, while Othello Sensei averages 3.0 from 2 ratings.
Do SaioApp or Othello Sensei have ads?
Neither SaioApp nor Othello Sensei shows ads.
Which is updated more often, SaioApp or Othello Sensei?
SaioApp ships an update every 2 weeks, and Othello Sensei every 3 months. Most recently, SaioApp was updated on November 2, 2026 and Othello Sensei on October 30, 2026.

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