# xFormula vs Hypothesis Test

The clearest difference is price: xFormula at Free against Hypothesis Test's $1.99. xFormula also leads on ratings volume (55 vs 1). Hypothesis Test's advantage is rating (5.0 vs 3.9) and in-app purchases (none vs 4). On update cadence, ads, device support and iOS requirement there is nothing between them.

xFormula is free to download; Hypothesis Test costs $1.99 up front. xFormula sells 4 in-app purchases, starting at $1.99 per month. Hypothesis Test asks for nothing beyond the download.

Hypothesis Test holds the better App Store score, 5.0 against 3.9. That said, the two scores are not equally well evidenced: xFormula has 55 ratings behind it against 1, so its average is the more settled of the two.

xFormula ships an update every 3 weeks, Hypothesis Test monthly. The most recent releases landed on September 24, 2026 and August 24, 2026 respectively.

## The numbers

| Metric | xFormula | Hypothesis Test |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | [3.9 (55 ratings)](https://appshunter.io/ios/app/xformula-equation-editor/id1477136751/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/hypothesis-test-type-i-pro/id6472454829/reviews)** |
| Number of ratings | **55** | 1 |
| Positive reviews | 84.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 56 MB | 180 MB |
| Requires iOS | 16.1 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [煦 张](https://appshunter.io/developer/494537607) | [Glindemann, Sennoun, Langer GbR](https://appshunter.io/developer/1024972809) |

## What reviewers say

### xFormula

[App page](https://appshunter.io/ios/app/xformula-equation-editor/id1477136751)

Create and edit mathematical equations with a visual interface. Export your work as images, LaTeX, MathML, or UnicodeMath for use in documents and presentations. Features include image recognition, formula libraries, and custom keyboards.

**Highlights:** Visual equation editing, Export to image, LaTeX, MathML, UnicodeMath, Image recognition for formulas, Organized formula libraries, Customizable keyboard for symbols, Keyboard extension for other apps

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro 1 Month (Auto-Renewable) | $1.99 | per month |
| Advanced (Lifetime) | $9.99 | one-time |
| Basic (Lifetime) | $11.99 | one-time |
| Pro (Lifetime) | $18.99 | one-time |


### Hypothesis Test

[App page](https://appshunter.io/ios/app/hypothesis-test-type-i-pro/id6472454829)

Perform Type I Error hypothesis testing with customizable null hypotheses and sample sizes. Calculate alpha errors or acceptance/rejection ranges with detailed, step-by-step solutions. Save and share your calculations.

**Highlights:** Type I Error hypothesis testing, Calculate alpha error, Calculate acceptance/rejection range, Right, left, or bilateral tests, Step-by-step solution display, Calculation history, Shareable results

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

**In-app purchases:** none


## Frequently asked questions

### Is xFormula free?

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

### Is Hypothesis Test free?

Hypothesis Test costs $1.99, with no in-app purchases.

### Which has better reviews, xFormula or Hypothesis Test?

Hypothesis Test is rated higher. xFormula averages 3.9 out of 5 from 55 ratings, while Hypothesis Test averages 5.0 from 1 ratings.

### Do xFormula or Hypothesis Test have ads?

Neither xFormula nor Hypothesis Test shows ads.

### Which is updated more often, xFormula or Hypothesis Test?

xFormula ships an update every 3 weeks, and Hypothesis Test monthly. Most recently, xFormula was updated on September 24, 2026 and Hypothesis Test on August 24, 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.*