# Sigma vs Statistics Solver + Calculator

The clearest difference is iOS requirement: Statistics Solver + Calculator at 15.0 against Sigma's 17.0. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Sigma sells 2 in-app purchases, starting at $4.99 per month and Statistics Solver + Calculator sells 3 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Sigma | Statistics Solver + Calculator |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | — | Every 4 months |
| Size | 2 MB | 66 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [BULPARA TEKNOLOJI LIMITED SIRKETI](https://appshunter.io/developer/1552593177) | [Yorgi Del Rio](https://appshunter.io/developer/1845433622) |

## What reviewers say

### Sigma

[App page](https://appshunter.io/ios/app/sigma-gpa-calculator/id6758437572)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sigma Premium Annual | $4.99 | per month |
| Sigma Premium Annual | $29.99 | per year |


### Statistics Solver + Calculator

[App page](https://appshunter.io/ios/app/statistics-solver-plus-calculator/id6759198563)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $4.99 | per 7 days |
| Annual | $19.99 | per year |
| Stat Solver Pro Lifetime | $39.99 | one-time |


## Frequently asked questions

### Is Sigma free?

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

### Is Statistics Solver + Calculator free?

Statistics Solver + Calculator is free to download, with in-app purchases available.

### Do Sigma or Statistics Solver + Calculator have ads?

Neither Sigma nor Statistics Solver + Calculator shows ads.

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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.*