A/B Buddy 4+
Evan Miller
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If you're planning to run an experiment – either on the web or in real-life – it's critical to collect the right amount data so that you know the experiment results are scientifically valid.
A/B Buddy is a sample-size calculator that helps you design A/B experiments with a quick slide of a finger. It uses a power-analysis formula to tell you exactly how many subjects, or users, that you'll need in an experiment in order to detect a statistically significant difference between two groups. Because if you have too few users in the experiment, you'll never see any difference between "A" and "B"; if you have too many enrolled, the experiment will never end. A/B Buddy tells you exactly the right number.
How does it work? Let's say your current conversion rate is 10%, and you want to see if a proposed change from the design team can boost that number up to 12% – that is, a 20% lift in the conversion rate. Simply pop open A/B Buddy, set the Baseline conversion rate to 10%, and the Minimum Detectable Effect to 20%, and your answer is waiting for you at the top of the screen.
A/B Buddy includes a Share button, which links to a web page displaying your sample size calculation. Your numbers, however, remain 100% private – all the information is stored in the URL fragment, and is never transmitted to any servers.
By default, A/B Buddy uses the most common statistical thresholds: 5% for the significance level (false-positive rate), and 80% for the power level (ability to detect the Minimum Detectable Effect). Power users can adjust these values after unlocking the Pro Features in-app purchase. But most users will find the defaults adequate for their needs.
Questions? Suggestions? Ideas? Feedback is always welcome at emmiller@gmail.com
새로운 기능
버전 1.1.0
• Full support for Dark Mode
• A/B Buddy now requires iOS 13 or later
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정보
- 제공자
- Evan Miller
- 크기
- 1.8MB
- 카테고리
- 유틸리티
- 호환성
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- iPhone
- iOS 13.0 이상 필요.
- iPad
- iPadOS 13.0 이상 필요.
- iPod touch
- iOS 13.0 이상 필요.
- Mac
- macOS 11.0 이상 및 Apple M1 칩 이상이 탑재된 Mac이 필요.
- Apple Vision
- visionOS 1.0 이상 필요.
- 언어
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영어
- 연령 등급
- 4+
- 저작권
- © 2019-2020 Evan Miller
- 가격
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- 앱 내 구입
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- Pro Features ₩12,000