# Probability vs Statistics Calculator & Tutor

The clearest difference is price: Statistics Calculator & Tutor at Free against Probability's $1.99. Statistics Calculator & Tutor also leads on device support (3 vs 1) and iOS requirement (15.1 vs 26.0). Probability's advantage is in-app purchases (none vs 5) and ads (none vs shown). On rating and update cadence there is nothing between them.

Statistics Calculator & Tutor is free to download; Probability costs $1.99 up front. Statistics Calculator & Tutor sells 5 in-app purchases, starting at $4.99 per 7 days. Probability asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.9 for Probability against 5.0 for Statistics Calculator & Tutor. That said, the two scores are not equally well evidenced: Probability has 193 ratings behind it against 1, so its average is the more settled of the two.

Both ship on a similar rhythm, roughly every 3 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | Probability | Statistics Calculator & Tutor |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | [4.9 (193 ratings)](https://appshunter.io/ios/app/probability-distributions/id889106396/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/statistics-calculator-and-tutor/id6759664490/reviews)** |
| Number of ratings | **193** | 1 |
| Positive reviews | 97.2% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | Free | — |
| Best chart rank | **#196** | — |
| Size | 7 MB | 51 MB |
| Requires iOS | 26.0 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Matthew Bognar](https://appshunter.io/developer/889106399) | [Serhii Shlykov](https://appshunter.io/developer/1809794912) |

## What reviewers say

### Probability

[App page](https://appshunter.io/ios/app/probability-distributions/id889106396)

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

Calculate probabilities, find percentiles, and visualize probability density or mass functions for a wide range of continuous and discrete statistical distributions. Explore common distributions like normal, binomial, Poisson, and many more.

**Highlights:** Compute probabilities, Determine percentiles, Plot probability density function, Plot probability mass function, Supports 10+ continuous distributions, Supports 5+ discrete distributions

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use interface
- 📊 Great for probability distributions
- 💡 Useful for checking work and homework
- 💰 Free advanced functions
- 📈 Visualizes data and distributions

**What reviewers complain about**

- 🚫 Not allowed on some exams
- 🤔 Some users want more features

**Requested features**

- Exam mode similar to Geogebra
- Poisson distribution
- Allow setting plot boundaries (e.g., for Beta distribution)
- Make formulae available in offline mode
- Clearly introduce parameters


### Statistics Calculator & Tutor

[App page](https://appshunter.io/ios/app/statistics-calculator-and-tutor/id6759664490)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Statistics Problem Solver AI Weekly | $4.99 | per 7 days |
| Statistics Problem Solver AI Weekly | $4.99 | per 7 days |
| Statistics Problem Solver AI Yearly | $19.99 | per year |
| Statistics Problem Solver AI Yearly | $29.99 | per year |
| Statistics Problem Solver AI Yearly | $29.99 | per year |


## Frequently asked questions

### Is Probability free?

Probability costs $1.99, with no in-app purchases.

### Is Statistics Calculator & Tutor free?

Statistics Calculator & Tutor is free to download, with in-app purchases available.

### Which has better reviews, Probability or Statistics Calculator & Tutor?

Statistics Calculator & Tutor is rated higher. Probability averages 4.9 out of 5 from 193 ratings, while Statistics Calculator & Tutor averages 5.0 from 1 ratings.

### Do Probability or Statistics Calculator & Tutor have ads?

Statistics Calculator & Tutor shows ads; Probability does not.

### Which is updated more often, Probability or Statistics Calculator & Tutor?

Probability ships an update every 3 months, and Statistics Calculator & Tutor every 3 months. Most recently, Probability was updated on October 24, 2026 and Statistics Calculator & Tutor on October 24, 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.*