# オンデバイス文字起こし vs SoloWatermark

The clearest difference is in-app purchases: オンデバイス文字起こし at none against SoloWatermark's 2. SoloWatermark's advantage is iOS requirement (16.4 vs 26.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. SoloWatermark sells 2 in-app purchases, starting at $1.99 per month. オンデバイス文字起こし asks for nothing beyond the download.

オンデバイス文字起こし ships an update every 4 days, SoloWatermark weekly. Both last shipped on November 5, 2026.

## The numbers

| Metric | オンデバイス文字起こし | SoloWatermark |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Weekly |
| Size | 9 MB | 74 MB |
| Requires iOS | 26.0 | **16.4** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Ryo Iwanaga](https://appshunter.io/developer/1671198895) | [JUNICHI HASHIMOTO](https://appshunter.io/developer/1609225560) |

## What reviewers say

### オンデバイス文字起こし

[App page](https://appshunter.io/ios/app/kasane/id6759188450)

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

**In-app purchases:** none


### SoloWatermark

[App page](https://appshunter.io/ios/app/solowatermark/id6788365371)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Membership | $1.99 | per month |
| Premium Plan 1 Year | $11.99 | per year |


## Frequently asked questions

### Is オンデバイス文字起こし free?

オンデバイス文字起こし is free to download, with no in-app purchases.

### Is SoloWatermark free?

SoloWatermark is free to download, with in-app purchases available.

### Do オンデバイス文字起こし or SoloWatermark have ads?

Neither オンデバイス文字起こし nor SoloWatermark shows ads.

### Which is updated more often, オンデバイス文字起こし or SoloWatermark?

オンデバイス文字起こし ships an update every 4 days, and SoloWatermark weekly. Most recently, オンデバイス文字起こし was updated on November 5, 2026 and SoloWatermark on November 5, 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.*