# n4Studies Plus — user reviews

> 1 indexed App Store user reviews of n4Studies Plus by Chetta Ngamjarus, rated 3.00/5 from 1 ratings.

- Source: https://appshunter.io/ios/app/n4studies-plus/id6450650727/reviews
- App overview in markdown: https://appshunter.io/ios/app/n4studies-plus/id6450650727.md
- Rating breakdown: 5★ 0 · 4★ 0 · 3★ 1 · 2★ 0 · 1★ 0

## Most critical reviews (1 lowest-rated)

### 3/5 — Need to Add More One-Sided Test Functions and α = 0.025 Support

*2026-05-22*

Although support for one-sided hypothesis testing has been added for some statistical methods, the one-sided calculation for non-inferiority tests comparing two proportions still appears to be missing or incomplete. This is a very important feature for clinical trial design and should be supported explicitly.

In addition, I strongly recommend adding an option for α = 0.025, alongside the currently available α values of 0.01, 0.05, and 0.1. A one-sided α = 0.025 is widely used in confirmatory clinical trials, especially in superiority and non-inferiority study designs following regulatory guidance and common industry practice.

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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 2026-09-02.*