# AI音声文字起こし vs Lightning Notes

The clearest difference is in-app purchases: Lightning Notes at none against AI音声文字起こし's 3. Lightning Notes also leads on update cadence (daily vs weekly). AI音声文字起こし's advantage is iOS requirement (17.2 vs 26.0). On price, 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. Lightning Notes asks for nothing beyond the download.

AI音声文字起こし ships an update weekly, Lightning Notes daily. The most recent releases landed on September 29, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | AI音声文字起こし | Lightning Notes |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 71.4% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Weekly | **Daily** |
| Monetization | Free with in-app purchases | — |
| Size | 63 MB | 55 MB |
| Requires iOS | **17.2** | 26.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Atsushi Koyama](https://appshunter.io/developer/1367138812) | [Chihiro Otsuki](https://appshunter.io/developer/1879208814) |

## 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 |


### Lightning Notes

[App page](https://appshunter.io/ios/app/lightning-notes-ai-recorder/id6761365061)

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

**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 Lightning Notes free?

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

### Do AI音声文字起こし or Lightning Notes have ads?

Both AI音声文字起こし and Lightning Notes show ads.

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

AI音声文字起こし ships an update weekly, and Lightning Notes daily. Most recently, AI音声文字起こし was updated on September 29, 2026 and Lightning Notes on September 20, 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.*