# Rail Shuffle vs Equation =

The clearest difference is ads: Rail Shuffle at none against Equation ='s shown. Equation ='s advantage is update cadence (every 5 months vs every 41 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Rail Shuffle ships an update every 41 months, Equation = every 5 months. The most recent releases landed on September 26, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Rail Shuffle | Equation = |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 41 months | **Every 5 months** |
| Size | 11 MB | 91 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Eweguo AB](https://appshunter.io/developer/305628259) | [Beijing Ningdom Technology Co., Ltd.](https://appshunter.io/developer/434217018) |

## What reviewers say

### Rail Shuffle

[App page](https://appshunter.io/ios/app/rail-shuffle/id517793019)

**Features:** macOS Compatibility

**In-app purchases:** none


### Equation =

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

**In-app purchases:** none


## Frequently asked questions

### Is Rail Shuffle free?

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

### Is Equation = free?

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

### Do Rail Shuffle or Equation = have ads?

Equation = shows ads; Rail Shuffle does not.

### Which is updated more often, Rail Shuffle or Equation =?

Rail Shuffle ships an update every 41 months, and Equation = every 5 months. Most recently, Rail Shuffle was updated on September 26, 2026 and Equation = 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.*