# Scientific Calculator With Normal/Gaussian Distribution vs Probability Distribution

The clearest difference is rating: Probability Distribution at 4.5 against Scientific Calculator With Normal/Gaussian Distribution's 2.3. Probability Distribution also leads on update cadence (every 2 weeks vs every 12 months) and ratings volume (16 vs 3). Scientific Calculator With Normal/Gaussian Distribution's advantage is in-app purchases (none vs 1) and review sentiment (50% vs 33%). On price, ads and device support there is nothing between them.

Both are free to download. Probability Distribution sells 1 one-off in-app purchase. Scientific Calculator With Normal/Gaussian Distribution asks for nothing beyond the download.

Probability Distribution holds the better App Store score, 4.5 against 2.3. That said, the two scores are not equally well evidenced: Probability Distribution has 16 ratings behind it against 3, so its average is the more settled of the two. Written reviews complicate that: 50% of Scientific Calculator With Normal/Gaussian Distribution's written reviews are positive against 33% of Probability Distribution's, so the app with the better star average is not the one people write more warmly about.

Scientific Calculator With Normal/Gaussian Distribution ships an update every 12 months, Probability Distribution every 2 weeks. The most recent releases landed on October 23, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Scientific Calculator With Normal/Gaussian Distribution | Probability Distribution |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.3 (3 ratings)](https://appshunter.io/ios/app/scientific-calculator-with-normalgaussian-distribution/id731342063/reviews) | **[4.5 (16 ratings)](https://appshunter.io/ios/app/probability-distribution/id6447695305/reviews)** |
| Number of ratings | 3 | **16** |
| Positive reviews | **50.0% of reviews** | 33.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 2 weeks** |
| Monetization | **Free** | Paid |
| Size | 3 MB | 7 MB |
| Requires iOS | **6.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [MODULAR Software & Services GmbH](https://appshunter.io/developer/731342066) | [Madiyar Aitbayev](https://appshunter.io/developer/1229466587) |

## What reviewers say

### Scientific Calculator With Normal/Gaussian Distribution

[App page](https://appshunter.io/ios/app/scientific-calculator-with-normalgaussian-distribution/id731342063)

This app calculates and plots normal and Gaussian distribution functions, including cumulative density functions for probabilities. It also functions as a scientific calculator with support for common mathematical and trigonometric functions, and allows direct text input of expressions.

**Highlights:** Normal/Gaussian distribution plotting, Cumulative density function calculation, Z and X value calculations, Scientific calculator functionality, Text expression input, Support for common math functions, Trigonometric functions

**Features:** macOS Compatibility

**In-app purchases:** none


### Probability Distribution

[App page](https://appshunter.io/ios/app/probability-distribution/id6447695305)

This app allows users to calculate probabilities and visualize various continuous and discrete probability distributions. It supports a wide range of common distributions and plans to add more in the future.

**Highlights:** Calculate probabilities, Visualize distributions, Normal (Gaussian) distribution, Binomial distribution, Poisson distribution, Exponential distribution

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock All Distributions | $2.99 | one-time |


## Frequently asked questions

### Is Scientific Calculator With Normal/Gaussian Distribution free?

Scientific Calculator With Normal/Gaussian Distribution is free to download, with no in-app purchases.

### Is Probability Distribution free?

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

### Which has better reviews, Scientific Calculator With Normal/Gaussian Distribution or Probability Distribution?

Probability Distribution is rated higher. Scientific Calculator With Normal/Gaussian Distribution averages 2.3 out of 5 from 3 ratings, while Probability Distribution averages 4.5 from 16 ratings.

### Do Scientific Calculator With Normal/Gaussian Distribution or Probability Distribution have ads?

Neither Scientific Calculator With Normal/Gaussian Distribution nor Probability Distribution shows ads.

### Which is updated more often, Scientific Calculator With Normal/Gaussian Distribution or Probability Distribution?

Scientific Calculator With Normal/Gaussian Distribution ships an update every 12 months, and Probability Distribution every 2 weeks. Most recently, Scientific Calculator With Normal/Gaussian Distribution was updated on October 23, 2026 and Probability Distribution on October 30, 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.*