# UPIICSA vs Probability Distribution

The clearest difference is in-app purchases: UPIICSA at none against Probability Distribution's 1. UPIICSA also leads on iOS requirement (12.0 vs 16.0). Probability Distribution's advantage is review sentiment (33% vs 0%) and update cadence (every 2 weeks vs every 5 weeks). 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. UPIICSA asks for nothing beyond the download.

UPIICSA ships an update every 5 weeks, Probability Distribution every 2 weeks. The most recent releases landed on October 1, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | UPIICSA | Probability Distribution |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.5 (15 ratings)](https://appshunter.io/ios/app/probability-distribution/id6447695305/reviews)** |
| Number of ratings | — | **15** |
| Positive reviews | 0.0% of reviews | **33.3% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 2 weeks** |
| Monetization | **Free** | Paid |
| Size | 20 MB | 7 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Territorium Life SAPI de CV](https://appshunter.io/developer/1044321639) | [Madiyar Aitbayev](https://appshunter.io/developer/1229466587) |

## What reviewers say

### UPIICSA

[App page](https://appshunter.io/ios/app/upiicsa/id1532822456)

This educational app allows students to access course content, participate in forums, and take exams. You can also check grades, review important dates, and consult uploaded documents and wikis.

**Highlights:** Consult course content, Complete and review assignments, Participate in forums, Take exams, Consult uploaded documents, Check grades, Review events and dates

**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 UPIICSA free?

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

### Is Probability Distribution free?

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

### Do UPIICSA or Probability Distribution have ads?

Neither UPIICSA nor Probability Distribution shows ads.

### Which is updated more often, UPIICSA or Probability Distribution?

UPIICSA ships an update every 5 weeks, and Probability Distribution every 2 weeks. Most recently, UPIICSA was updated on October 1, 2026 and Probability Distribution on September 26, 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.*