# プチ鹿島アプリ vs Romi（ロミィ）

The clearest difference is iOS requirement: プチ鹿島アプリ at 8.0 against Romi（ロミィ）'s 17.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

プチ鹿島アプリ ships an update every 3 weeks, Romi（ロミィ） monthly. The most recent releases landed on October 16, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | プチ鹿島アプリ | Romi（ロミィ） |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 42.9% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | — | Free |
| Size | 6 MB | 31 MB |
| Requires iOS | **8.0** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [6et app Co.,Ltd.](https://appshunter.io/developer/547665600) | [MIXI, Inc.](https://appshunter.io/developer/285951869) |

## What reviewers say

### プチ鹿島アプリ

[App page](https://appshunter.io/ios/app/id813677068)

**Features:** macOS Compatibility

**In-app purchases:** none


### Romi（ロミィ）

[App page](https://appshunter.io/ios/app/romi/id1478600631)

This companion app facilitates the setup and customization of a conversational AI robot. It offers guidance on engaging with the robot and accessing its various helpful functions, such as weather updates, alarms, and language learning.

**Highlights:** Initial setup and configuration, Connection to wireless internet, View robot status (e.g., battery), Conversation tips and guides, Access to helpful functions, English conversation practice

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

**In-app purchases:** none


## Frequently asked questions

### Is プチ鹿島アプリ free?

プチ鹿島アプリ is free to download, with no in-app purchases.

### Is Romi（ロミィ） free?

Romi（ロミィ） is free to download, with no in-app purchases.

### Do プチ鹿島アプリ or Romi（ロミィ） have ads?

Neither プチ鹿島アプリ nor Romi（ロミィ） shows ads.

### Which is updated more often, プチ鹿島アプリ or Romi（ロミィ）?

プチ鹿島アプリ ships an update every 3 weeks, and Romi（ロミィ） monthly. Most recently, プチ鹿島アプリ was updated on October 16, 2026 and Romi（ロミィ） 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.*