Theオセロ vs Reversi Effect
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Theオセロ
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シンプルなオセロアプリです。持ち時間を設定してオセロの対戦ができます。
Reversi Effect
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Three Exciting Game Modes! [VS CPU] Challenge a tough CPU opponent with five difficulty levels! ▼ How Turn Order is Decided At the start of the game, toss an Othello piece to determine who goes first. Black moves first, and White moves second. [VS 2P] Play a face-to-face match on a single device! [VS ONLINE] Enjoy online battles with randomly matched opponents! Each player has a total of 3 minutes, with a countdown running during their turn. ▼ What happens if you run out of time? A piece will be placed randomly in an available spot! However, from the next move onward, you can still place a piece manually within 3 seconds. *Rating and ranking features coming soon! [About Ads] This app is supported by ad revenue and requires an internet connection. Ads are displayed as follows: - VS CPU, VS 2P Banner ads at the bottom of the screen Full-screen ad every 3 games - VS ONLINE Full-screen ad after every game *Some features may be limited when offline. - Credit - - App production - KIWI BIRD SOFT - Music and Sound effects - *OtoLogic https://otologic.jp/ *効果音ラボ https://soundeffect-lab.info/
Screenshots
Verdict
The clearest difference is in-app purchases: Theオセロ at none against Reversi Effect's 3. Theオセロ also leads on ads (none vs shown). Reversi Effect's advantage is iOS requirement (13.0 vs 15.0). On price, update cadence 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
Both are free to download. Reversi Effect sells 3 one-off in-app purchases. Theオセロ asks for nothing beyond the download.
Theオセロ ships an update every 6 days, Reversi Effect every 5 days. The most recent releases landed on October 4, 2026 and October 8, 2026 respectively.
| Parameter | Theオセロ | Reversi Effect |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 6 days | Every 5 days — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 5 MB | 117 MB |
| Age rating | 4+ | 17+ |
| Developer | kazuki omori | Akiko Saitou |
In-app purchases
Theオセロ
No in-app purchases
Reversi Effect
- 250pts$0.99
- Remove Ads$1.99
- 500pts$1.99
