# Sool vs Vexel Core

The clearest difference is iOS requirement: Vexel Core at 15.6 against Sool's 17.0. On price, update cadence, ads and in-app purchases 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, Vexel Core monthly. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Sool | Vexel Core |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Size | 4 MB | 4 MB |
| Requires iOS | 17.0 | **15.6** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Umit UZ](https://appshunter.io/developer/1842858860) | [华晨 王](https://appshunter.io/developer/1867694886) |

## 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


### Vexel Core

[App page](https://appshunter.io/ios/app/vexel-core/id6760085594)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Sool free?

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

### Is Vexel Core free?

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

### Do Sool or Vexel Core have ads?

Neither Sool nor Vexel Core shows ads.

### Which is updated more often, Sool or Vexel Core?

Sool ships an update every 2 months, and Vexel Core monthly. Most recently, Sool was updated on November 5, 2026 and Vexel Core on October 31, 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.*