# Hypothesis Test vs CLF

The clearest difference is price: CLF at Free against Hypothesis Test's $1.99. Hypothesis Test's advantage is in-app purchases (none vs 3) and update cadence (monthly vs every 2 months). On ads, device support and iOS requirement there is nothing between them.

CLF is free to download; Hypothesis Test costs $1.99 up front. CLF sells 3 in-app purchases, starting at $3.99 per month. Hypothesis Test asks for nothing beyond the download.

Hypothesis Test ships an update monthly, CLF every 2 months. The most recent releases landed on August 24, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | Hypothesis Test | CLF |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| 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** | Yes |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | Paid | — |
| Size | 180 MB | 27 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Glindemann, Sennoun, Langer GbR](https://appshunter.io/developer/1024972809) | [Davy Raitt](https://appshunter.io/developer/1795318281) |

## What reviewers say

### 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


### CLF

[App page](https://appshunter.io/ios/app/clf-c02-cloud-practitioner/id6746121070)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $3.99 | per month |
| Pro Yearly | $14.99 | per year |
| Pro Lifetime | $19.99 | one-time |


## Frequently asked questions

### Is Hypothesis Test free?

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

### Is CLF free?

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

### Do Hypothesis Test or CLF have ads?

Neither Hypothesis Test nor CLF shows ads.

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

Hypothesis Test ships an update monthly, and CLF every 2 months. Most recently, Hypothesis Test was updated on August 24, 2026 and CLF on September 25, 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.*