# Hanafuda･Koi Koi vs BitFlip

The clearest difference is iOS requirement: Hanafuda･Koi Koi at 13.0 against BitFlip's 26.4. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Hanafuda･Koi Koi sells 1 one-off in-app purchase and BitFlip sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Hanafuda･Koi Koi ships an update every 5 weeks, BitFlip every 2 months. The most recent releases landed on October 25, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Hanafuda･Koi Koi | BitFlip |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (559 ratings)](https://appshunter.io/ios/app/hanafudakoi-koi/id1339558217/reviews)** | — |
| Number of ratings | **559** | — |
| Positive reviews | 56.3% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 5 weeks** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 134 MB | 16 MB |
| Requires iOS | **13.0** | 26.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [慧 姚](https://appshunter.io/developer/1339558216) | [kodai takiguchi](https://appshunter.io/developer/1890502601) |

## What reviewers say

### Hanafuda･Koi Koi

[App page](https://appshunter.io/ios/app/hanafudakoi-koi/id1339558217)

Experience a traditional Japanese card game played with Hanafuda cards. The objective is to form specific card combinations, known as 'yaku', before your opponent. Choose to cash in your points or continue playing for higher scores by saying 'koi-koi'.

**Highlights:** Play traditional Japanese card game, Use Hanafuda cards, Form 'yaku' card combinations, Score points by making combinations, Option to 'koi-koi' for more points

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $3.99 | one-time |

**What reviewers like**

- 👍 Excellent for learning how to play koi-koi
- 🎮 Well-coded AI opponent with good difficulty levels
- 🎨 Beautiful card designs and smooth animations
- 📱 Playable offline without Wi-Fi
- ⚡ Fast and responsive gameplay

**What reviewers complain about**

- 📺 Excessive and aggressive advertisements
- 🔊 Ads are loud and disruptive to music
- 🐛 Ads frequently crash the app
- 📱 Poor display on newer iPhone models (notch obstruction)
- 🔤 Incomplete English translation (Japanese/Chinese text remains)

**Reported bugs**

- App crashes frequently, especially with Facebook ads
- Ads freeze without countdown timer
- Ads lack close buttons or are difficult to close
- App crashes on startup (some devices)
- Music/BGM not working properly

**Requested features**

- Multiplayer functionality (online or local)
- Ability to review scored cards during koi-koi decision
- Landscape mode support with better card visibility
- Option to cancel card selection after dragging
- Full English translation of all game elements


### BitFlip

[App page](https://appshunter.io/ios/app/bitflip/id6761623228)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 広告を削除 | $1.99 | one-time |


## Frequently asked questions

### Is Hanafuda･Koi Koi free?

Hanafuda･Koi Koi is free to download, with in-app purchases available.

### Is BitFlip free?

BitFlip is free to download, with in-app purchases available.

### Do Hanafuda･Koi Koi or BitFlip have ads?

Both Hanafuda･Koi Koi and BitFlip show ads.

### Which is updated more often, Hanafuda･Koi Koi or BitFlip?

Hanafuda･Koi Koi ships an update every 5 weeks, and BitFlip every 2 months. Most recently, Hanafuda･Koi Koi was updated on October 25, 2026 and BitFlip on October 11, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*