# Sool vs Pulse Surge

The clearest difference is update cadence: Pulse Surge at every 2 days against Sool's every 2 months. Pulse Surge also leads on iOS requirement (15 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

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

Sool ships an update every 2 months, Pulse Surge every 2 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | Sool | Pulse Surge |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 days** |
| Size | 4 MB | 9 MB |
| Requires iOS | 17.0 | **15** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Umit UZ](https://appshunter.io/developer/1842858860) | [忠芳 蒋](https://appshunter.io/developer/1881495339) |

## What reviewers say

### Sool

[App page](https://appshunter.io/ios/app/sool-quick-mathematic-trainer/id6756207263)

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

**In-app purchases:** none


### Pulse Surge

[App page](https://appshunter.io/ios/app/pulse-surge-reactor-rush/id6760999234)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Sool free?

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

### Is Pulse Surge free?

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

### Do Sool or Pulse Surge have ads?

Neither Sool nor Pulse Surge shows ads.

### Which is updated more often, Sool or Pulse Surge?

Sool ships an update every 2 months, and Pulse Surge every 2 days. Most recently, Sool was updated on October 24, 2026 and Pulse Surge on October 24, 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.*