# Size test vs Hypothesis Test

The clearest difference is update cadence: Hypothesis Test at monthly against Size test's every 10 months. Hypothesis Test also leads on device support (3 vs 1). Size test's advantage is price ($0.99 vs $1.99). On ads, in-app purchases and iOS requirement there is nothing between them.

Size test costs $0.99 and Hypothesis Test $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Size test ships an update every 10 months, Hypothesis Test monthly. The most recent releases landed on May 19, 2026 and August 24, 2026 respectively.

## The numbers

| Metric | Size test | Hypothesis Test |
| --- | --- | --- |
| Price | **$0.99** | $1.99 |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/hypothesis-test-type-i-pro/id6472454829/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Monthly** |
| Monetization | — | Paid |
| Size | 1 MB | 180 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Viacheslav Romanenko](https://appshunter.io/developer/1046372418) | [Glindemann, Sennoun, Langer GbR](https://appshunter.io/developer/1024972809) |

## What reviewers say

### Size test

[App page](https://appshunter.io/ios/app/size-test/id1059703529)

**In-app purchases:** none


### 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 Size test free?

Size test costs $0.99, with no in-app purchases.

### Is Hypothesis Test free?

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

### Do Size test or Hypothesis Test have ads?

Neither Size test nor Hypothesis Test shows ads.

### Which is updated more often, Size test or Hypothesis Test?

Size test ships an update every 10 months, and Hypothesis Test monthly. Most recently, Size test was updated on May 19, 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.*