# AI音声文字起こし vs ROJIN

The clearest difference is in-app purchases: ROJIN at none against AI音声文字起こし's 3. ROJIN also leads on ads (none vs shown) and review sentiment (100% vs 71%). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. AI音声文字起こし sells 3 in-app purchases, starting at $2.99 per month. ROJIN asks for nothing beyond the download.

AI音声文字起こし ships an update weekly, ROJIN every 5 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | AI音声文字起こし | ROJIN |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/rojinspeech-to-text/id6754526694/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 71.4% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Weekly | **Every 5 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 63 MB | 557 MB |
| Requires iOS | **17.2** | 18.1 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Atsushi Koyama](https://appshunter.io/developer/1367138812) | [Silicon Nexus](https://appshunter.io/developer/1880518146) |

## What reviewers say

### AI音声文字起こし

[App page](https://appshunter.io/ios/app/ai/id6748010674)

This app quickly converts audio recordings into text using advanced AI. It offers a simple, intuitive interface for transcribing meetings, interviews, and personal notes. All data is securely stored on your device, ensuring privacy.

**Highlights:** Unlimited audio to text conversion, High-accuracy AI speech recognition, Simple and intuitive recording interface, Easy data management by tab, Secure on-device data storage, Privacy protection

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| プレミアムプラン | $2.99 | per month |
| プレミアムプラン | $29.99 | per year |
| 買い切りプラン | $99.99 | one-time |


### ROJIN

[App page](https://appshunter.io/ios/app/rojinspeech-to-text/id6754526694)

This app provides real-time, offline speech-to-text and translation for multiple languages. It prioritizes privacy with fully on-device processing, making it ideal for use in various settings without an internet connection.

**Highlights:** Offline multilingual speech-to-text, Real-time translation, On-device processing, No internet required, Privacy-focused, Low latency

**In-app purchases:** none


## Frequently asked questions

### Is AI音声文字起こし free?

AI音声文字起こし is free to download, with in-app purchases available.

### Is ROJIN free?

ROJIN is free to download, with no in-app purchases.

### Do AI音声文字起こし or ROJIN have ads?

AI音声文字起こし shows ads; ROJIN does not.

### Which is updated more often, AI音声文字起こし or ROJIN?

AI音声文字起こし ships an update weekly, and ROJIN every 5 days. Most recently, AI音声文字起こし was updated on October 24, 2026 and ROJIN 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.*