# AbaTax vs Probability Distribution

The clearest difference is in-app purchases: AbaTax at none against Probability Distribution's 1. AbaTax also leads on iOS requirement (11.0 vs 16.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Probability Distribution sells 1 one-off in-app purchase. AbaTax asks for nothing beyond the download.

AbaTax ships an update monthly, Probability Distribution every 2 weeks. The most recent releases landed on September 28, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | AbaTax | 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 | — | 33.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 weeks** |
| Monetization | — | Paid |
| Size | 7 MB | 7 MB |
| Requires iOS | **11.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Bernardo Serrano](https://appshunter.io/developer/1484112490) | [Madiyar Aitbayev](https://appshunter.io/developer/1229466587) |

## What reviewers say

### AbaTax

[App page](https://appshunter.io/ios/app/abatax/id1543502201)

**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 AbaTax free?

AbaTax 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 AbaTax or Probability Distribution have ads?

Neither AbaTax nor Probability Distribution shows ads.

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

AbaTax ships an update monthly, and Probability Distribution every 2 weeks. Most recently, AbaTax was updated on September 28, 2026 and Probability Distribution on October 12, 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.*