iRevolution vs Koikoi
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
iRevolution
A digital card game popular in Japan, known as "Multi millionaire." This game offers a strategic experience that can be beneficial for individuals seeking mental stimulation. It features GameCenter integration for competitive play.
- Digital card game
- Popular in Japan
- GameCenter integration
- Strategic gameplay
- Suitable for anxious individuals
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It is card game popular in Japan. The card game is called "Multi millionaire" in Japan. It is not possible to introduce it here because there are a lot of rules. Examining it is good for the anxious person. Intergration of GameCenter like "Big2(Big two)"
Koikoi
Experience the traditional Japanese card game of Hanafuda. Match cards to collect sets and score points over a series of rounds. The player with the highest total score after 12 games wins.
- Hanafuda card game
- Match cards to collect sets
- Score points
- 12-game rounds
- Automatic game record saving
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Koikoi is a game of Hanafuda (Japanese Playing Cards). -How to play Koikoi Throw away the card to the table into play alternately. If there is a match of the month, you can get the cards. You will be able to finish the game to get a point if your cards are flush. You are also possible to continue the game. Can not score with each other and no game. The winner is who get more points total 12 times game. Game record will be saved automatically.
Screenshots
Verdict
The clearest difference is review sentiment: iRevolution at 100% against Koikoi's 20%. iRevolution also leads on rating (4.0 vs 3.4) and update cadence (every 3 months vs every 7 months). Koikoi's advantage is chart position (#99 vs unranked). On ratings volume, ads, in-app purchases and monetization model 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
iRevolution costs $0.99 and Koikoi $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
iRevolution holds the better App Store score, 4.0 against 3.4. Both are backed by a comparable volume of ratings — 4 and 5 respectively. Written reviews point the same way: 100% of iRevolution's written reviews are positive against 20% of Koikoi's.
iRevolution ships an update every 3 months, Koikoi every 7 months. The most recent releases landed on October 8, 2026 and October 11, 2026 respectively.
| Parameter | iRevolution | Koikoi |
|---|---|---|
| Price | $0.99 — better | $1.99 |
| Rating | 4.0 (4 ratings) — better | 3.4 (5 ratings) |
| Positive reviews | 100.0% of reviews — better | 20.0% of reviews |
| Number of ratings | 4 | 5 — better |
| Update frequency | Every 3 months — better | Every 7 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Best chart rank | — | #99 — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.0 — better | 12.0 |
| Further details — not scored | ||
| Size | 5 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | RUCKYGAMES CO., LTD. | Kouichi Hayashi |
Customer experience
iRevolution
Koikoi
In-app purchases
iRevolution
No in-app purchases
Koikoi
No in-app purchases
