# ko Frame Extractor vs Strobe

The clearest difference is in-app purchases: ko Frame Extractor at none against Strobe's 1. ko Frame Extractor also leads on iOS requirement (15.0 vs 17.0). Strobe's advantage is update cadence (weekly vs fortnightly). On price, ads and device support there is nothing between them.

Both are free to download. Strobe sells 1 one-off in-app purchase. ko Frame Extractor asks for nothing beyond the download.

ko Frame Extractor ships an update fortnightly, Strobe weekly. The most recent releases landed on October 9, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | ko Frame Extractor | Strobe |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Weekly** |
| Monetization | — | Free with in-app purchases |
| Size | 4 MB | 1 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [KENICHI HIYAMA](https://appshunter.io/developer/1787698866) | [Jong Hyeck Choe](https://appshunter.io/developer/1849394467) |

## What reviewers say

### ko Frame Extractor

[App page](https://appshunter.io/ios/app/ko-frame-extractor/id6754691389)

**Features:** macOS Compatibility

**In-app purchases:** none


### Strobe

[App page](https://appshunter.io/ios/app/strobe-action-sequence-photo/id6759543334)

Transform videos into dynamic action sequence photos with AI-powered frame selection and subject isolation. Create professional-looking composites of movement in one tap, with options for overlaying multiple poses or displaying frames side-by-side.

**Highlights:** Video to action sequence photo conversion, AI-powered frame selection, Subject isolation and compositing, Overlay and sequence modes, Manual frame control, Professional output effects

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Strobe Pro | $3.99 | one-time |


## Frequently asked questions

### Is ko Frame Extractor free?

ko Frame Extractor is free to download, with no in-app purchases.

### Is Strobe free?

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

### Do ko Frame Extractor or Strobe have ads?

Neither ko Frame Extractor nor Strobe shows ads.

### Which is updated more often, ko Frame Extractor or Strobe?

ko Frame Extractor ships an update fortnightly, and Strobe weekly. Most recently, ko Frame Extractor was updated on October 9, 2026 and Strobe on October 7, 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.*