# いもうとーく | 妹AIチャットアプリ vs リプバトル

The clearest difference is in-app purchases: リプバトル at none against いもうとーく | 妹AIチャットアプリ's 10. リプバトル also leads on update cadence (every 9 days vs every 3 weeks). いもうとーく | 妹AIチャットアプリ's advantage is iOS requirement (15.6 vs 26.5). On price, ads and device support there is nothing between them.

Both are free to download. いもうとーく | 妹AIチャットアプリ sells 10 in-app purchases, starting at $9.99 per month. リプバトル asks for nothing beyond the download.

いもうとーく | 妹AIチャットアプリ ships an update every 3 weeks, リプバトル every 9 days. The most recent releases landed on November 3, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | いもうとーく | 妹AIチャットアプリ | リプバトル |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (2 ratings)](https://appshunter.io/ios/app/ai/id6449149386/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 52.4% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 3 weeks | **Every 9 days** |
| Monetization | Free with in-app purchases | — |
| Size | 207 MB | 15 MB |
| Requires iOS | **15.6** | 26.5 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [AIXIS LLC](https://appshunter.io/developer/1879493586) | [Hiroaki Tajima](https://appshunter.io/developer/6788194651) |

## What reviewers say

### いもうとーく | 妹AIチャットアプリ

[App page](https://appshunter.io/ios/app/ai/id6449149386)

Engage in conversations with your ideal virtual sister. Customize her appearance and personality, then chat to deepen your bond. Unlock exclusive illustrations and voice features as your relationship grows.

**Highlights:** AI-powered chat, Customizable sister appearance, Customizable sister personality, Unlockable illustrations, Voice chat features, Relationship building

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月額プラン(スタンダード) | $9.99 | per month |
| 月額プラン(プロ) | $19.99 | per month |
| 2026サマーダイヤ小 | $2.99 | one-time |
| 2026GWダイヤ小 | $2.99 | one-time |
| 2026お年玉ダイヤ小 | $2.99 | one-time |
| 追加性格セット1 - 少女・おっとり・ボーイッシュ | $5.99 | one-time |
| 2026お年玉ダイヤ中 | $19.99 | one-time |
| 2026サマーダイヤ大(SSR確定プレゼント付き) | $29.99 | one-time |
| 2026GWダイヤ大(SSR確定プレゼント付き) | $29.99 | one-time |
| 2026お年玉ダイヤ大(SSR確定プレゼント付き) | $29.99 | one-time |


### リプバトル

[App page](https://appshunter.io/ios/app/id6795378038)

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

**In-app purchases:** none


## Frequently asked questions

### Is いもうとーく | 妹AIチャットアプリ free?

いもうとーく | 妹AIチャットアプリ is free to download, with in-app purchases available.

### Is リプバトル free?

リプバトル is free to download, with no in-app purchases.

### Do いもうとーく | 妹AIチャットアプリ or リプバトル have ads?

Both いもうとーく | 妹AIチャットアプリ and リプバトル show ads.

### Which is updated more often, いもうとーく | 妹AIチャットアプリ or リプバトル?

いもうとーく | 妹AIチャットアプリ ships an update every 3 weeks, and リプバトル every 9 days. Most recently, いもうとーく | 妹AIチャットアプリ was updated on November 3, 2026 and リプバトル on October 24, 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.*