# FracTree vs Binomial Probability P(X=k)

The clearest difference is in-app purchases: FracTree at none against Binomial Probability P(X=k)'s 8. FracTree also leads on iOS requirement (9.0 vs 15.0). Binomial Probability P(X=k)'s advantage is update cadence (every 3 weeks vs every 7 months). On price, ads and device support there is nothing between them.

Both are free to download. Binomial Probability P(X=k) sells 8 one-off in-app purchases. FracTree asks for nothing beyond the download.

FracTree ships an update every 7 months, Binomial Probability P(X=k) every 3 weeks. The most recent releases landed on June 1, 2026 and August 15, 2026 respectively.

## The numbers

| Metric | FracTree | Binomial Probability P(X=k) |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/fractree/id1198055195/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 2 MB | 180 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jeff Menter](https://appshunter.io/developer/403539646) | [Glindemann, Sennoun, Langer GbR](https://appshunter.io/developer/1024972809) |

## What reviewers say

### FracTree

[App page](https://appshunter.io/ios/app/fractree/id1198055195)

Explore the fascinating world of fractal trees with this intuitive iOS app. Experiment with different shapes and appearances using touch gestures and sliders. Save your creations and export them as high-quality images or PDFs.

**Highlights:** Intuitive touch controls for shape manipulation, Sliders to alter tree appearance, Manual value input for controls, Random tree generation, Save favorite fractal trees, Export art as PNG, JPG, or PDF

**Features:** macOS Compatibility

**In-app purchases:** none


### Binomial Probability P(X=k)

[App page](https://appshunter.io/ios/app/binomial-probability-pxk/id6472449007)

**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 |
| +2 Convenience Tokens / 6h, max. +4 | $0.99 | one-time |
| +150 User Tokens | $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 FracTree free?

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

### Is Binomial Probability P(X=k) free?

Binomial Probability P(X=k) is free to download, with in-app purchases available.

### Do FracTree or Binomial Probability P(X=k) have ads?

Neither FracTree nor Binomial Probability P(X=k) shows ads.

### Which is updated more often, FracTree or Binomial Probability P(X=k)?

FracTree ships an update every 7 months, and Binomial Probability P(X=k) every 3 weeks. Most recently, FracTree was updated on June 1, 2026 and Binomial Probability P(X=k) on August 15, 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.*