# NexSample — Sample size, clinical research

> Sample size, clinical research (iPhone/iPad app by M Jeeva Sankar.)

- Source: https://appshunter.io/ios/app/nexsample/id6761913387 (this page in markdown: same URL + `.md`)
- Developer: [M Jeeva Sankar](https://appshunter.io/developer/1892039458)
- Category: Medical, Education
- Price: Free
- Age rating: 4+
- Requires: iOS 15.1 · 30 MB
- Languages: American English
- Released: 2026-04-17
- Data updated: 2026-08-24
- User reviews in markdown: https://appshunter.io/ios/app/nexsample/id6761913387/reviews.md

## What is NexSample?

NexSample is a free sample size calculator for clinical research, designed for medical residents, fellows, postgraduate students, and researchers. It includes 26 calculators covering the most common study designs in clinical trials, observational research, and diagnostic studies, along with calculators for agreement, reliability, and regression that are hard to find elsewhere.
Whether you are planning a thesis, protocol, dissertation, grant proposal, or manuscript, NexSample helps you calculate sample size quickly and accurately, with full formulas and references shown for every calculation.


## Version history (last 3 releases)

### 1.0.2 — 2026-04-30

Light and dark theme support. 
Improved SD guidance across mean-based calculators. 
Fixed confidence level display. 
Disabled dynamic font scaling for consistent layout.

### 1.0.1 — 2026-04-18

Updated logistic prediction model to Riley et al. (2019, 2020) framework. Improved formula accuracy across calculators. Visual refinements for iOS. Added methods write-up generator enhancements.

### 1.0 — 2026-04-17

No release notes.

## Related topics

[sample size calculator app](https://appshunter.io/ios/topics/sample-size-calculator-app) · [sample size](https://appshunter.io/ios/topics/sample-size)

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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.*