# VOICEMO vs SEIMON

The clearest difference is in-app purchases: VOICEMO at none against SEIMON's 2. VOICEMO also leads on iOS requirement (14.1 vs 17.0). SEIMON's advantage is ads (none vs shown) and update cadence (every 3 weeks vs every 4 months). On price and device support there is nothing between them.

Both are free to download. SEIMON sells 2 in-app purchases, starting at $3.99 per month. VOICEMO asks for nothing beyond the download.

VOICEMO ships an update every 4 months, SEIMON every 3 weeks. The most recent releases landed on October 18, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | VOICEMO | SEIMON |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Size | 4 MB | 5 MB |
| Requires iOS | **14.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [kohei yamane](https://appshunter.io/developer/1239055575) | [Takahiro Endo](https://appshunter.io/developer/1878005918) |

## What reviewers say

### VOICEMO

[App page](https://appshunter.io/ios/app/voicemo/id1526800192)

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

**In-app purchases:** none


### SEIMON

[App page](https://appshunter.io/ios/app/seimon/id6762163853)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 上級鑑定士ライセンス（月額） | $3.99 | per month |
| 上級鑑定士ライセンス（年額） | $29.99 | per year |


## Frequently asked questions

### Is VOICEMO free?

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

### Is SEIMON free?

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

### Do VOICEMO or SEIMON have ads?

VOICEMO shows ads; SEIMON does not.

### Which is updated more often, VOICEMO or SEIMON?

VOICEMO ships an update every 4 months, and SEIMON every 3 weeks. Most recently, VOICEMO was updated on October 18, 2026 and SEIMON on October 9, 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.*