# SpeechToText Memo vs AI音声文字起こし

The clearest difference is in-app purchases: SpeechToText Memo at none against AI音声文字起こし's 3. On price, update cadence, ads and device support 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. SpeechToText Memo asks for nothing beyond the download.

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on January 27, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | SpeechToText Memo | AI音声文字起こし |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 71.4% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Weekly | Weekly |
| Monetization | — | Free with in-app purchases |
| Size | 11 MB | 63 MB |
| Requires iOS | **16.6** | 17.2 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [nz-sw](https://appshunter.io/developer/502363484) | [Atsushi Koyama](https://appshunter.io/developer/1367138812) |

## What reviewers say

### SpeechToText Memo

[App page](https://appshunter.io/ios/app/speechtotext-memo/id6739190768)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is SpeechToText Memo free?

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

### 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.

### Do SpeechToText Memo or AI音声文字起こし have ads?

Both SpeechToText Memo and AI音声文字起こし show ads.

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

SpeechToText Memo ships an update weekly, and AI音声文字起こし weekly. Most recently, SpeechToText Memo was updated on January 27, 2026 and AI音声文字起こし on September 10, 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.*