# Learn Statistics Offline vs Three

The clearest difference is price: Three at Free against Learn Statistics Offline's $1.99. Three also leads on update cadence (every 4 days vs every 23 months). Learn Statistics Offline's advantage is in-app purchases (none vs 1) and chart position (#196 vs unranked). On rating, ratings volume, ads and device support there is nothing between them.

Three is free to download; Learn Statistics Offline costs $1.99 up front. Three sells 1 one-off in-app purchase. Learn Statistics Offline asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Learn Statistics Offline against 5.0 for Three. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Learn Statistics Offline ships an update every 23 months, Three every 4 days. The most recent releases landed on October 9, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Learn Statistics Offline | Three |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/learn-statistics-offline/id6443746574/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/three-body-simulation/id6817179834/reviews) |
| Number of ratings | 1 | 1 |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 23 months | **Every 4 days** |
| Monetization | Paid | **Free with in-app purchases** |
| Best chart rank | **#196** | — |
| Size | 38 MB | 6 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Muhammad Mubeen](https://appshunter.io/developer/1553722821) | [志强 曾](https://appshunter.io/developer/1800987336) |

## What reviewers say

### Learn Statistics Offline

[App page](https://appshunter.io/ios/app/learn-statistics-offline/id6443746574)

**Currently charting:** #196 Top Paid · Education (US App Store)

Master statistical concepts with this app, covering topics from probability and hypothesis testing to regression and correlation. It's designed to help you learn statistical methods quickly and efficiently.

**Highlights:** Introduction to Statistics, Probability, Population & Organization, Hypothesis Testing, Linear Regression, Sampling, Correlation, Variables

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

**In-app purchases:** none


### Three

[App page](https://appshunter.io/ios/app/three-body-simulation/id6817179834)

Explore the fascinating beauty of gravity and celestial motion. Interact with three bodies, discover countless orbital paths, and experiment with your own gravity scenarios. Turn curiosity into understanding with this educational simulation.

**Highlights:** Explore 16 classic periodic solutions, Discover 10,059 3D periodic orbits, Experiment with custom gravity scenarios, Learn about the three-body problem, Offline exploration of orbits, Interactive celestial motion simulation

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Lifetime Unlock | $0.99 | one-time |


## Frequently asked questions

### Is Learn Statistics Offline free?

Learn Statistics Offline costs $1.99, with no in-app purchases.

### Is Three free?

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

### Which has better reviews, Learn Statistics Offline or Three?

Learn Statistics Offline and Three are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do Learn Statistics Offline or Three have ads?

Neither Learn Statistics Offline nor Three shows ads.

### Which is updated more often, Learn Statistics Offline or Three?

Learn Statistics Offline ships an update every 23 months, and Three every 4 days. Most recently, Learn Statistics Offline was updated on October 9, 2026 and Three on October 19, 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.*