# Probability vs Venn Diagram Shader

The clearest difference is review sentiment: Probability at 97% against Venn Diagram Shader's 26%. Probability also leads on rating (4.9 vs 4.0) and monetization model (free vs paid). Venn Diagram Shader's advantage is update cadence (every 5 days vs every 3 months) and device support (3 vs 1). On price, ads and in-app purchases there is nothing between them.

Probability costs $1.99 and Venn Diagram Shader $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Probability holds the better App Store score, 4.9 against 4.0. That said, the two scores are not equally well evidenced: Probability has 193 ratings behind it against 21, so its average is the more settled of the two. Written reviews point the same way: 97% of Probability's written reviews are positive against 26% of Venn Diagram Shader's.

Probability ships an update every 3 months, Venn Diagram Shader every 5 days. The most recent releases landed on November 11, 2026 and November 1, 2026 respectively.

## The numbers

| Metric | Probability | Venn Diagram Shader |
| --- | --- | --- |
| Price | $1.99 | $1.99 |
| Rating | **[4.9 (193 ratings)](https://appshunter.io/ios/app/probability-distributions/id889106396/reviews)** | [4.0 (21 ratings)](https://appshunter.io/ios/app/venn-diagram-shader/id892864440/reviews) |
| Number of ratings | **193** | 21 |
| Positive reviews | **97.2% of reviews** | 26.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 5 days** |
| Monetization | **Free** | Paid |
| Size | 7 MB | 11 MB |
| Requires iOS | 26.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Matthew Bognar](https://appshunter.io/developer/889106399) | [Ketan Appa](https://appshunter.io/developer/576435759) |

## What reviewers say

### Probability

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

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


### Venn Diagram Shader

[App page](https://appshunter.io/ios/app/venn-diagram-shader/id892864440)

Create and shade Venn diagrams with up to seven sets. This mathematical tool automatically generates set notation expressions and provides step-by-step shading instructions for algebraic expressions. Export your diagrams for further editing.

**Highlights:** Create Venn diagrams (1-7 sets), Shade or unshade areas, Automatic set notation display, Step-by-step shading for expressions, Supports subsets and disjoint sets, Customizable colors, Save and share diagrams

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Probability free?

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

### Is Venn Diagram Shader free?

Venn Diagram Shader costs $1.99, with no in-app purchases.

### Which has better reviews, Probability or Venn Diagram Shader?

Probability is rated higher. Probability averages 4.9 out of 5 from 193 ratings, while Venn Diagram Shader averages 4.0 from 21 ratings.

### Do Probability or Venn Diagram Shader have ads?

Neither Probability nor Venn Diagram Shader shows ads.

### Which is updated more often, Probability or Venn Diagram Shader?

Probability ships an update every 3 months, and Venn Diagram Shader every 5 days. Most recently, Probability was updated on November 11, 2026 and Venn Diagram Shader on November 1, 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.*