# Hypothesis Test - Type I PRO — With Solution Steps

> App for performing Type I Error hypothesis testing with detailed solutions. (iPhone/iPad app by Glindemann, Sennoun, Langer GbR.)

- Source: https://appshunter.io/ios/app/hypothesis-test-type-i-pro/id6472454829 (this page in markdown: same URL + `.md`)
- Developer: [Glindemann, Sennoun, Langer GbR](https://appshunter.io/developer/1024972809)
- Category: Education, Utilities
- Price: $1.99
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 15.0 · 180 MB
- Languages: Russian, Hindi, Indonesian, German (Germany), Japanese, French (France), Chinese (Simplified, China), American English, Brazilian Portuguese, European Spanish and 1 more
- Released: 2024-05-07
- Data updated: 2026-08-24
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/hypothesis-test-type-i-pro/id6472454829/reviews.md

## What is Hypothesis Test?

This app provides the ability to perform Type I Error hypothesis testing. The null hypothesis and sample size can be specified. Depending on the selected mode, the alpha error or the acceptance or rejection range can be calculated.

The different modes offer the possibility of performing right-sided, left-sided or bilateral tests. For this purpose, k1 and/or k2 can be specified for mode I or II.

Various modifications can be made to calculate the acceptance and rejection ranges. It is important to note whether X should be greater than/equal to or less than/equal to k. P(X)≤ α is always assumed.

The solution is shown step by step. All calculations are saved in history. The final solution can be shared.

[ Contents ]
- 2 modes to calculate alpha error with right, left or bilateral tests
- 4 modes for calculating acceptance and rejection range depending on α
- Results are calculated and displayed in detail
- History to save input
- detailed solution
- Natural numbers and decimal numbers are supported depending on the variable
- no ads!

[ Use ]
- There are fields for entering values using a special keyboard
- Click on the checkmark button at the bottom right to start the calculation
- If values are missing, the corresponding field is highlighted in yellow
- If the values are incorrect, the affected field is highlighted in red
- a short message explains why a value is incorrect
- The entries in the history can be deleted or sorted
- When you select an entry in the history, it is automatically loaded for calculation
- All history can be deleted at the touch of a button
- Solutions can be shared

## Key features

- 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


## Frequently asked questions about Hypothesis Test

### What is Hypothesis Test PRO used for?

Hypothesis Test PRO is used to perform Type I Error hypothesis testing. It allows users to specify the null hypothesis and sample size, and then calculate alpha errors or acceptance/rejection ranges for various test types.

### Does Hypothesis Test PRO have ads?

No, Hypothesis Test PRO is ad-free. The app description explicitly states 'no ads!' ensuring an uninterrupted user experience.

### How does Hypothesis Test PRO show solutions?

Hypothesis Test PRO displays solutions step-by-step, providing detailed explanations for each calculation. This aids in understanding the process of hypothesis testing.

### Can I save and share my calculations in Hypothesis Test PRO?

Yes, all calculations performed in Hypothesis Test PRO are saved in the history. You can also share the final solution with others.

### What types of hypothesis tests can I perform with Hypothesis Test PRO?

Hypothesis Test PRO supports right-sided, left-sided, and bilateral tests. It offers modes to calculate alpha error and acceptance/rejection ranges based on these test types.

### What is the price of Hypothesis Test PRO?

Hypothesis Test PRO is a paid application, priced at $1.99. This one-time purchase grants access to all its features.

### On which devices can I use Hypothesis Test PRO?

Hypothesis Test PRO is supported on iPhones, iPads, and iPods. It is designed for iOS devices.

### How often is Hypothesis Test PRO updated?

The latest version of Hypothesis Test PRO is 2.1.9, last updated on May 1, 2026. This indicates a recent update, suggesting ongoing support and development.

## Version history (last 5 releases)

### 2.2.3 — 2026-08-14

The latest release 'Least common multiple' is linked in the menu section now.

Minor performance and UI fixes.

### 2.2.2 — 2026-08-04

- the status bar on top is integrated into the current app design
- the app flow was improved (pop-up information was balanced)

### 2.2.1 — 2026-07-17

Maintenance update. Improving performance.

### 2.2.0 — 2026-06-19

Bringing all apps to the same security standard. Critical storage behaviour for solutions has been fixed.

By the way - I run many apps with different math topics. If you like this one: Check them out as well!

I always do my best to keep a high standard on my apps. If something does not meet the expectations, do not hesitate to contact me.

### 2.1.10 — 2026-06-06

为了让解题保存和加载更加稳定，我们进行了大量修复和调整。因此，后台进行了部分数据库修改。不会有性能损失，功能也不会发生变化。后台任务仅执行一次，并在几毫秒内完成。可能会出现以下情况（仅暂时）：
- 已保存的计算可能需要点击两次才能完全加载
- 已保存解题的顺序可能发生变化

如果出现解题丢失，请随时联系我，并告诉我丢失的解题数量 + 受影响的应用。我会找到解决方案。

此致，Alex（开发者）

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All apps by Glindemann, Sennoun, Langer GbR: https://appshunter.io/developer/1024972809

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-24.*