# Spring Sort vs Knock Out

The clearest difference is ads: Knock Out at none against Spring Sort's shown. Knock Out also leads on update cadence (every 3 days vs every 4 weeks) and review sentiment (50% vs 40%). On price, rating, ratings volume and in-app purchases there is nothing between them.

Both are free to download. Spring Sort sells 22 one-off in-app purchases and Knock Out sells 14 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.9 for Spring Sort against 4.8 for Knock Out. Both are backed by a comparable volume of ratings — 21K and 32K respectively. Written reviews are what separate them: 40% of Spring Sort's written reviews are positive against 50% of Knock Out's.

Spring Sort ships an update every 4 weeks, Knock Out every 3 days. Both last shipped on September 25, 2026.

## The numbers

| Metric | Spring Sort | Knock Out |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (21K ratings)](https://appshunter.io/ios/app/spring-sort-sorting-puzzle-3d/id6747435794/reviews)** | [4.8 (32K ratings)](https://appshunter.io/ios/app/knock-out-physics-puzzle/id6782096197/reviews) |
| Number of ratings | 21K | **32K** |
| Positive reviews | 40.4% of reviews | **49.8% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 4 weeks | **Every 3 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | #99 | **#82** |
| Size | 598 MB | 259 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [MOONEE PUBLISHING LTD](https://appshunter.io/developer/1469957859) | [Combo Games](https://appshunter.io/developer/1641699177) |

## What reviewers say

### Spring Sort

[App page](https://appshunter.io/ios/app/spring-sort-sorting-puzzle-3d/id6747435794)

**Currently charting:** #99 Top Free · Puzzle (US App Store)

Engage your mind with a unique 3D puzzle game where you sort and stack colorful Slinky coils into matching tubes. Experience satisfying physics and strategic gameplay that challenges your logic while promoting relaxation.

**Highlights:** Satisfying Slinky physics, Color sorting and stacking, Strategic brain-training gameplay, Daily rewards and bonuses, Limited-time events with collectible items, Reward wheel and Piggy Bank for extra rewards, Free and VIP reward tracks

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

**In-app purchases (22)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Heart Boost | $0.99 | one-time |
| Heart Surge | $1.99 | one-time |
| Pinch of Coins | $1.99 | one-time |
| chain_600c_1bs | $2.99 | one-time |
| Starter Bundle | $2.99 | one-time |
| Revive Pack | $3.99 | one-time |
| Piggy Bank | $4.99 | one-time |
| Beginner Bundle | $4.99 | one-time |
| No Ads | $4.99 | one-time |
| No Ads Pack 2 | $5.99 | one-time |
| No Ads Pack | $7.99 | one-time |
| Heart Storm | $7.99 | one-time |
| Pixel Master | $9.99 | one-time |
| Season Pass | $9.99 | one-time |
| Master Bundle | $9.99 | one-time |
| Flower Master | $9.99 | one-time |
| Mega Pack | $19.99 | one-time |
| Ultra Pack | $39.99 | one-time |
| Slinky Grandmaster | $49.99 | one-time |
| Slinky Champion | $99.99 | one-time |
| Fortune of Coins | $99.99 | one-time |
| Legendary Pack | $99.99 | one-time |


### Knock Out

[App page](https://appshunter.io/ios/app/knock-out-physics-puzzle/id6782096197)

**Currently charting:** #82 Top Grossing · Puzzle, #83 Top Grossing · Casual (US App Store)

Blast colorful blocks and topple clever structures in this satisfying physics-driven puzzle game. Fire matching blocks to create explosive chain reactions and clear every piece to complete hundreds of handcrafted levels. Enjoy addictive, rewarding gameplay that's easy to learn but challenging to master.

**Highlights:** Addictive shoot-and-clear puzzle gameplay, Satisfying block destruction, Hundreds of handcrafted levels, Unique structures and obstacles, Smooth controls and precision shots, Colorful 3D visuals, Offline play

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

**In-app purchases (14)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Mini Pack | $0.99 | one-time |
| Mini Pack | $1.99 | one-time |
| Mini Pack | $2.99 | one-time |
| Mini Pack | $3.99 | one-time |
| Mini Pack | $4.99 | one-time |
| Mini Pack | $5.99 | one-time |
| Medium Pack | $7.99 | one-time |
| Medium Pack | $9.99 | one-time |
| Large Pack | $14.99 | one-time |
| Large Pack | $19.99 | one-time |
| Large Pack | $29.99 | one-time |
| Mega Pack | $39.99 | one-time |
| Mega Pack | $54.99 | one-time |
| Mega Pack | $99.99 | one-time |


## Frequently asked questions

### Is Spring Sort free?

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

### Is Knock Out free?

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

### Which has better reviews, Spring Sort or Knock Out?

Spring Sort is rated higher. Spring Sort averages 4.9 out of 5 from 21K ratings, while Knock Out averages 4.8 from 32K ratings.

### Do Spring Sort or Knock Out have ads?

Spring Sort shows ads; Knock Out does not.

### Which is updated more often, Spring Sort or Knock Out?

Spring Sort ships an update every 4 weeks, and Knock Out every 3 days. Most recently, Spring Sort was updated on September 25, 2026 and Knock Out on September 25, 2026.

### Which is more popular, Spring Sort or Knock Out?

Spring Sort currently peaks at #99 in the App Store charts, and Knock Out at #82. Chart position reflects recent download velocity rather than total install base.

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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.*