# Probability Toolkit vs Bernoulli Trial

The clearest difference is price: Bernoulli Trial at Free against Probability Toolkit's $1.99. Bernoulli Trial also leads on update cadence (every 3 weeks vs every 10 months) and device support (3 vs 1). Probability Toolkit's advantage is in-app purchases (none vs 8) and iOS requirement (12.0 vs 15.0). On ads there is nothing between them.

Bernoulli Trial is free to download; Probability Toolkit costs $1.99 up front. Bernoulli Trial sells 8 one-off in-app purchases. Probability Toolkit asks for nothing beyond the download.

Probability Toolkit ships an update every 10 months, Bernoulli Trial every 3 weeks. The most recent releases landed on October 19, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Probability Toolkit | Bernoulli Trial |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/bernoulli-trial/id6472449129/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 3 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 41 MB | 180 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Ventura Educational Systems](https://appshunter.io/developer/371324172) | [Glindemann, Sennoun, Langer GbR](https://appshunter.io/developer/1024972809) |

## What reviewers say

### Probability Toolkit

[App page](https://appshunter.io/ios/app/probability-toolkit/id652216774)

**Features:** macOS Compatibility

**In-app purchases:** none


### Bernoulli Trial

[App page](https://appshunter.io/ios/app/bernoulli-trial/id6472449129)

Instantly solve math homework and prepare for exams with step-by-step solutions. Calculate probabilities, expected values, variance, and standard deviation for Bernoulli trials. Includes histograms, distribution functions, and learning videos.

**Highlights:** Step-by-step math solutions, Bernoulli trial probability calculation, Expected value, variance, standard deviation, Histogram and distribution function, Curated learning videos, Feedback on incorrect inputs

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| +30 User Tokens | $0.29 | one-time |
| +1 Convenience Token / 6h, max. +2 | $0.59 | one-time |
| +150 User Tokens | $0.99 | one-time |
| +2 Convenience Tokens / 6h, max. +4 | $0.99 | one-time |
| +300 User Tokens | $1.49 | one-time |
| +4 Convenience Tokens / 6h, max. +8 | $1.59 | one-time |
| Lifetime Access | $1.99 | one-time |
| Remove Ads | $1.99 | one-time |


## Frequently asked questions

### Is Probability Toolkit free?

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

### Is Bernoulli Trial free?

Bernoulli Trial is free to download, with in-app purchases available.

### Do Probability Toolkit or Bernoulli Trial have ads?

Neither Probability Toolkit nor Bernoulli Trial shows ads.

### Which is updated more often, Probability Toolkit or Bernoulli Trial?

Probability Toolkit ships an update every 10 months, and Bernoulli Trial every 3 weeks. Most recently, Probability Toolkit was updated on October 19, 2026 and Bernoulli Trial on October 2, 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.*