# Six20 Strength vs Knockout

The clearest difference is in-app purchases: Six20 Strength at none against Knockout's 5. Six20 Strength also leads on rating (5.0 vs 4.6) and device support (4 vs 2). Knockout's advantage is update cadence (weekly vs every 6 weeks). On price, ratings volume and ads there is nothing between them.

Both are free to download. Knockout sells 5 in-app purchases, starting at $11.99 per month. Six20 Strength asks for nothing beyond the download.

Six20 Strength holds the better App Store score, 5.0 against 4.6. Both are backed by a comparable volume of ratings — 4 and 7 respectively.

Six20 Strength ships an update every 6 weeks, Knockout weekly. The most recent releases landed on October 31, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | Six20 Strength | Knockout |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/six20-strength/id6757308899/reviews)** | [4.6 (7 ratings)](https://appshunter.io/ios/app/knockout-boxing-coach/id6760410366/reviews) |
| Number of ratings | 4 | **7** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Weekly** |
| Monetization | **Free** | Freemium |
| Size | 198 MB | 240 MB |
| Requires iOS | **15.1** | 26.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Six20 Strength LLC](https://appshunter.io/developer/1865939387) | [Serhii Kopytchuk](https://appshunter.io/developer/1769027531) |

## What reviewers say

### Six20 Strength

[App page](https://appshunter.io/ios/app/six20-strength/id6757308899)

This app provides structured workout programs, progress tracking, and habit monitoring to help users build strength and achieve fitness goals. It includes exercise demos, nutrition logging, and community features for accountability and support.

**Highlights:** Professional training programs, Workout and progress logging, Nutrition and macro tracking, Recovery and lifestyle monitoring, Daily goal setting and reminders, Exercise demo videos, Community groups and challenges

**Features:** Apple Wallet

**In-app purchases:** none


### Knockout

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

Learn boxing step-by-step with guided lessons, structured training plans, and a customizable round timer. Practice techniques, combos, and workouts at home or in the gym to build your skills and track your progress.

**Highlights:** Progressive 4-week training program, Beginner boxing fundamentals, Video demonstrations of techniques and combos, Guided boxing workouts, Customizable boxing round timer, Progress tracking and XP earning

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Knockout Pro Monthly | $11.99 | per month |
| Knockout Premium Special Offer | $29.99 | per year |
| Knockout Premium | $39.99 | per year |
| Knockout Pro Yearly | $49.99 | per year |
| Knockout Pro Yearly | $49.99 | per year |


## Frequently asked questions

### Is Six20 Strength free?

Six20 Strength is free to download, with no in-app purchases.

### Is Knockout free?

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

### Which has better reviews, Six20 Strength or Knockout?

Six20 Strength is rated higher. Six20 Strength averages 5.0 out of 5 from 4 ratings, while Knockout averages 4.6 from 7 ratings.

### Do Six20 Strength or Knockout have ads?

Neither Six20 Strength nor Knockout shows ads.

### Which is updated more often, Six20 Strength or Knockout?

Six20 Strength ships an update every 6 weeks, and Knockout weekly. Most recently, Six20 Strength was updated on October 31, 2026 and Knockout on November 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.*