# KHR vs BARCS Trial

The clearest difference is iOS requirement: BARCS Trial at 13.0 against KHR's 15.1. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

KHR ships an update fortnightly, BARCS Trial every 3 weeks. Both last shipped on October 30, 2026.

## The numbers

| Metric | KHR | BARCS Trial |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/khr/id6743888324/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Monetization | Free | — |
| Size | 47 MB | 22 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Laina Enterprises, Inc.](https://appshunter.io/developer/1588943641) | [University of Virginia (VA)](https://appshunter.io/developer/1485767378) |

## What reviewers say

### KHR

[App page](https://appshunter.io/ios/app/khr/id6743888324)

This controlled-access survey application ensures data integrity by restricting participation to invited individuals. It is designed for researchers who require precise and actionable insights.

**Highlights:** Controlled access surveys, Data integrity focus, Invited participant only, Precise insights, Actionable research data

**Features:** macOS Compatibility

**In-app purchases:** none


### BARCS Trial

[App page](https://appshunter.io/ios/app/barcs-trial/id6751720557)

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

**In-app purchases:** none


## Frequently asked questions

### Is KHR free?

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

### Is BARCS Trial free?

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

### Do KHR or BARCS Trial have ads?

Neither KHR nor BARCS Trial shows ads.

### Which is updated more often, KHR or BARCS Trial?

KHR ships an update fortnightly, and BARCS Trial every 3 weeks. Most recently, KHR was updated on October 30, 2026 and BARCS Trial on October 30, 2026.

---

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