# Sort By Rope vs Equation =

The clearest difference is in-app purchases: Equation = at none against Sort By Rope's 1. Equation = also leads on update cadence (every 5 months vs every 18 months) and iOS requirement (13.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. Sort By Rope sells 1 one-off in-app purchase. Equation = asks for nothing beyond the download.

Sort By Rope ships an update every 18 months, Equation = every 5 months. The most recent releases landed on November 7, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | Sort By Rope | Equation = |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 18 months | **Every 5 months** |
| Size | 172 MB | 91 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [TERRANOVA INTERACTIVE LLC](https://appshunter.io/developer/6799684947) | [Beijing Ningdom Technology Co., Ltd.](https://appshunter.io/developer/434217018) |

## What reviewers say

### Sort By Rope

[App page](https://appshunter.io/ios/app/sort-by-rope-sorting-game/id6469692336)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $5.99 | one-time |


### Equation =

[App page](https://appshunter.io/ios/app/equation/id6737338940)

**In-app purchases:** none


## Frequently asked questions

### Is Sort By Rope free?

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

### Is Equation = free?

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

### Do Sort By Rope or Equation = have ads?

Both Sort By Rope and Equation = show ads.

### Which is updated more often, Sort By Rope or Equation =?

Sort By Rope ships an update every 18 months, and Equation = every 5 months. Most recently, Sort By Rope was updated on November 7, 2026 and Equation = on November 8, 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.*