# Probability vs Bayes Manager

The clearest difference is price: Bayes Manager at Free against Probability's $1.99. Bayes Manager also leads on iOS requirement (9.0 vs 14.0). Probability's advantage is ratings volume (193 vs 3) and chart position (#198 vs unranked). On rating, ads, in-app purchases and monetization model there is nothing between them.

Bayes Manager is free to download; Probability costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 4.9 for Probability against 5.0 for Bayes Manager. That said, the two scores are not equally well evidenced: Probability has 193 ratings behind it against 3, so its average is the more settled of the two.

## The numbers

| Metric | Probability | Bayes Manager |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | [4.9 (193 ratings)](https://appshunter.io/ios/app/probability-distributions/id889106396/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/bayes-manager/id1226336767/reviews)** |
| Number of ratings | **193** | 3 |
| Positive reviews | 97.2% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | — |
| Monetization | Free | Free |
| Best chart rank | **#198** | — |
| Size | 2 MB | 14 MB |
| Requires iOS | 14.0 | **9.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Matthew Bognar](https://appshunter.io/developer/889106399) | [Center for Evidence-Based Management](https://appshunter.io/developer/977259958) |

## What reviewers say

### Probability

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

**Currently charting:** #198 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


### Bayes Manager

[App page](https://appshunter.io/ios/app/bayes-manager/id1226336767)

This app assists managers and policymakers in calculating the likelihood of a claim or hypothesis being true. It uses Bayes' Rule and available evidence to provide probability estimates.

**Highlights:** Estimate claim probability, Apply Bayes' Rule, Utilize available evidence, Support for managers and policymakers

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Probability free?

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

### Is Bayes Manager free?

Bayes Manager is free to download, with no in-app purchases.

### Which has better reviews, Probability or Bayes Manager?

Bayes Manager is rated higher. Probability averages 4.9 out of 5 from 193 ratings, while Bayes Manager averages 5.0 from 3 ratings.

### Do Probability or Bayes Manager have ads?

Neither Probability nor Bayes Manager 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.*