# STA Methods vs Art of Stat

The clearest difference is in-app purchases: STA Methods at none against Art of Stat's 7. STA Methods also leads on iOS requirement (13.0 vs 15.1). Art of Stat's advantage is update cadence (every 3 weeks vs every 4 months) and ratings volume (12 vs 1). On price, rating, ads and monetization model there is nothing between them.

Both are free to download. Art of Stat sells 7 one-off in-app purchases. STA Methods asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for STA Methods against 5.0 for Art of Stat. That said, the two scores are not equally well evidenced: Art of Stat has 12 ratings behind it against 1, so its average is the more settled of the two.

STA Methods ships an update every 4 months, Art of Stat every 3 weeks. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | STA Methods | Art of Stat |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/sta-methods/id657466046/reviews) | [5.0 (12 ratings)](https://appshunter.io/ios/app/art-of-stat-concepts/id6444956478/reviews) |
| Number of ratings | 1 | **12** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 5 MB | 29 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Spade Apps, LLC](https://appshunter.io/developer/532346089) | [Bernhard Klingenberg](https://appshunter.io/developer/1564877195) |

## What reviewers say

### STA Methods

[App page](https://appshunter.io/ios/app/sta-methods/id657466046)

This app helps college statistics students by providing essential formulas and symbols for homework and study. It also includes a dedicated section for taking notes during class or for later review.

**Highlights:** Key statistics formulas, Essential symbols reference, In-app notes section, Study aid for college statistics, Homework assistance

**Features:** macOS Compatibility

**In-app purchases:** none


### Art of Stat

[App page](https://appshunter.io/ios/app/art-of-stat-concepts/id6444956478)

This app helps students and teachers visualize and understand core statistical concepts like the Central Limit Theorem, correlation, and hypothesis testing. Interactive modules allow for step-by-step exploration of sampling distributions, regression, and error probabilities.

**Highlights:** Central Limit Theorem simulation, Correlation and linear regression exploration, Confidence interval coverage visualization, Type I & II error analysis, Interactive scatterplot builder, Step-by-step concept learning

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Central Limit Theorem (Means) | $0.99 | one-time |
| Central Limit Theorem (Props) | $0.99 | one-time |
| Coverage Confidence Intervals | $0.99 | one-time |
| Explore Type I Error & Power | $0.99 | one-time |
| Explore Correlation | $0.99 | one-time |
| Explore Linear Regression | $0.99 | one-time |
| Unlock all Modules | $2.99 | one-time |


## Frequently asked questions

### Is STA Methods free?

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

### Is Art of Stat free?

Art of Stat is free to download, with in-app purchases available.

### Which has better reviews, STA Methods or Art of Stat?

STA Methods and Art of Stat are both rated 5.0 out of 5 on the App Store, from 1 and 12 ratings respectively.

### Do STA Methods or Art of Stat have ads?

Neither STA Methods nor Art of Stat shows ads.

### Which is updated more often, STA Methods or Art of Stat?

STA Methods ships an update every 4 months, and Art of Stat every 3 weeks. Most recently, STA Methods was updated on November 1, 2026 and Art of Stat on November 3, 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.*