# n4Studies vs EPview

The clearest difference is review sentiment: n4Studies at 100% against EPview's 0%. n4Studies also leads on rating (5.0 vs 3.2) and update cadence (every 4 months vs every 11 months). EPview's advantage is price (Free vs $1.99) and ratings volume (12 vs 1). On ads and in-app purchases there is nothing between them.

EPview is free to download; n4Studies costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

n4Studies holds the better App Store score, 5.0 against 3.2. That said, the two scores are not equally well evidenced: EPview has 12 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 100% of n4Studies's written reviews are positive against 0% of EPview's.

n4Studies ships an update every 4 months, EPview every 11 months. The most recent releases landed on August 7, 2026 and August 28, 2026 respectively.

## The numbers

| Metric | n4Studies | EPview |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/n4studies/id680516901/reviews)** | [3.2 (12 ratings)](https://appshunter.io/ios/app/epview/id1372702702/reviews) |
| Number of ratings | 1 | **12** |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 11 months |
| Monetization | Paid | **Free** |
| Best chart rank | **#186** | — |
| Size | 8 MB | 37 MB |
| Requires iOS | 16.0 | **11.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Chetta Ngamjarus](https://appshunter.io/developer/680516904) | [Evident Technology Center Europe GmbH](https://appshunter.io/developer/734337406) |

## What reviewers say

### n4Studies

[App page](https://appshunter.io/ios/app/n4studies/id680516901)

**Currently charting:** #186 Top Paid · Education (US App Store)

This application simplifies sample size and study power calculations for various research designs. It offers tools for estimating population means and proportions, comparing groups, and analyzing different study types like case-control and randomized controlled trials. Results can be easily shared via email.

**Highlights:** Calculate sample size for infinite/finite populations, Compare two population means/proportions, Calculate sample size for various study designs, Calculate study power for comparisons, Calculate study power for various study designs, Share results via email

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

**In-app purchases:** none


### EPview

[App page](https://appshunter.io/ios/app/epview/id1372702702)

Stream high-resolution microscopic images and Full HD videos from your camera. Capture, annotate, and measure specimens, then share your findings. Ideal for creating a digital classroom experience for collaborative learning.

**Highlights:** Stream high-resolution images and Full HD videos, Take snapshots and make annotations, Perform measurements on specimens, Share images and videos, Connect up to six students simultaneously, Control EP50 camera on mobile device

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

**In-app purchases:** none


## Frequently asked questions

### Is n4Studies free?

n4Studies costs $1.99, with no in-app purchases.

### Is EPview free?

EPview is free to download, with no in-app purchases.

### Which has better reviews, n4Studies or EPview?

n4Studies is rated higher. n4Studies averages 5.0 out of 5 from 1 ratings, while EPview averages 3.2 from 12 ratings.

### Do n4Studies or EPview have ads?

Neither n4Studies nor EPview shows ads.

### Which is updated more often, n4Studies or EPview?

n4Studies ships an update every 4 months, and EPview every 11 months. Most recently, n4Studies was updated on August 7, 2026 and EPview on August 28, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*