# Study Stats app vs SigmaQuest

The clearest difference is in-app purchases: Study Stats app at none against SigmaQuest's 10. Study Stats app also leads on ads (none vs shown) and iOS requirement (13.0 vs 18.0). On price and device support there is nothing between them.

Both are free to download. SigmaQuest sells 10 one-off in-app purchases. Study Stats app asks for nothing beyond the download.

## The numbers

| Metric | Study Stats app | SigmaQuest |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | — |
| Size | 48 MB | 7 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Chinedum Okpechi](https://appshunter.io/developer/1730044147) | [NICOLAS JORGE PETRIDES](https://appshunter.io/developer/6798856218) |

## What reviewers say

### Study Stats app

[App page](https://appshunter.io/ios/app/study-stats-app/id6477740443)

**Features:** macOS Compatibility

**In-app purchases:** none


### SigmaQuest

[App page](https://appshunter.io/ios/app/sigmaquest-learn-statistics/id6805579459)

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Gauss | $1.99 | one-time |
| Professor Sigma | $1.99 | one-time |
| Nutty | $1.99 | one-time |
| Bayes | $1.99 | one-time |
| Asymp | $1.99 | one-time |
| Vegas | $1.99 | one-time |
| Outlier | $1.99 | one-time |
| Alpha | $1.99 | one-time |
| The Central Limit | $1.99 | one-time |
| Unlock All Buddies | $9.99 | one-time |


## Frequently asked questions

### Is Study Stats app free?

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

### Is SigmaQuest free?

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

### Do Study Stats app or SigmaQuest have ads?

SigmaQuest shows ads; Study Stats app does not.

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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.*