# Impact vs Knockout

The clearest difference is in-app purchases: Impact at none against Knockout's 2. Impact also leads on iOS requirement (15.0 vs 26.0). Knockout's advantage is update cadence (weekly vs every 8 months). On price, ads and device support there is nothing between them.

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

Impact ships an update every 8 months, Knockout weekly. The most recent releases landed on October 3, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Impact | Knockout |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/knockout-boxing-coach/id6760410366/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 8 months | **Weekly** |
| Monetization | — | Subscription |
| Size | 15 MB | 222 MB |
| Requires iOS | **15.0** | 26.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Trainin](https://appshunter.io/developer/1732652497) | [Serhii Kopytchuk](https://appshunter.io/developer/1769027531) |

## What reviewers say

### Impact

[App page](https://appshunter.io/ios/app/impact45/id6739770649)

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

**In-app purchases:** none


### Knockout

[App page](https://appshunter.io/ios/app/knockout-boxing-coach/id6760410366)

This app provides a structured and intense training experience for various interval workouts, including boxing, MMA, and HIIT. Users can easily create custom routines or use presets, with features like random cues and clear transition sounds to enhance focus and performance.

**Highlights:** Customizable flexible timers, Fast start presets, Random audio cue signals, Step-end transition sounds, Quick editing of routines, Focused fight screen with big timer, Training statistics tracking

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Knockout Pro Monthly | $3.99 | per month |
| Knockout Pro Yearly | $14.99 | per year |


## Frequently asked questions

### Is Impact free?

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

### Is Knockout free?

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

### Do Impact or Knockout have ads?

Neither Impact nor Knockout shows ads.

### Which is updated more often, Impact or Knockout?

Impact ships an update every 8 months, and Knockout weekly. Most recently, Impact was updated on October 3, 2026 and Knockout on October 6, 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.*