# Siime vs KooSync

The clearest difference is update cadence: KooSync at every 3 weeks against Siime's every 4 months. Siime's advantage is device support (3 vs 1) and iOS requirement (7.0 vs 16.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Siime ships an update every 4 months, KooSync every 3 weeks. The most recent releases landed on September 24, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Siime | KooSync |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.3 (11 ratings)](https://appshunter.io/ios/app/siime/id1055226940/reviews)** | — |
| Number of ratings | **11** | — |
| Positive reviews | 12.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 16 MB | 150 MB |
| Requires iOS | **7.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Svakom Design USA Limited](https://appshunter.io/developer/836487755) | [宇森 吴](https://appshunter.io/developer/1837612323) |

## What reviewers say

### Siime

[App page](https://appshunter.io/ios/app/siime/id1055226940)

Capture still images from videos and record video clips with time display. Browse saved pictures and playback recorded video files within the app's album.

**Highlights:** Play video via toy, Get snapshots from video, Record video with time display, Save media to album, Browse pictures, Play record files

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

**In-app purchases:** none


### KooSync

[App page](https://appshunter.io/ios/app/koosync/id6752115401)

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

**In-app purchases:** none


## Frequently asked questions

### Is Siime free?

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

### Is KooSync free?

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

### Do Siime or KooSync have ads?

Neither Siime nor KooSync shows ads.

### Which is updated more often, Siime or KooSync?

Siime ships an update every 4 months, and KooSync every 3 weeks. Most recently, Siime was updated on September 24, 2026 and KooSync 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.*