# PHR Practice Test 2026 by ABC vs Sample for Science

The clearest difference is in-app purchases: Sample for Science at none against PHR Practice Test 2026 by ABC's 5. Sample for Science also leads on ads (none vs shown) and iOS requirement (12.0 vs 15.0). On price, update cadence and device support there is nothing between them.

Both are free to download. PHR Practice Test 2026 by ABC sells 5 in-app purchases, starting at $6.99 per 7 days. Sample for Science asks for nothing beyond the download.

PHR Practice Test 2026 by ABC ships an update every 3 months, Sample for Science every 6 weeks. The most recent releases landed on October 15, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | PHR Practice Test 2026 by ABC | Sample for Science |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (146 ratings)](https://appshunter.io/ios/app/phr-practice-test-2026-by-abc/id1502054713/reviews)** | — |
| Number of ratings | **146** | — |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Every 6 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 71 MB | 58 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Thanh Hung](https://appshunter.io/developer/1059077329) | [Universidade Federal Fluminense - UFF](https://appshunter.io/developer/739312311) |

## What reviewers say

### PHR Practice Test 2026 by ABC

[App page](https://appshunter.io/ios/app/phr-practice-test-2026-by-abc/id1502054713)

Prepare for your PHR certification with realistic practice questions and smart flashcards. This app offers topic-based practice, mock tests, and instant feedback to help you identify areas for improvement and optimize your study time. An AI study assistant provides personalized guidance and support.

**Highlights:** 300+ realistic practice questions, Smart flashcards, Real-time pass-rate prediction, Topic-based practice, Mock tests, AI Study Assistant (Mentora)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PHR Subscription Week | $6.99 | per 7 days |
| PHR Subscription Monthly | $19.99 | per month |
| PHR Quarterly Subscription | $39.99 | per 3 months |
| PHR Subscription Yearly | $49.99 | per year |
| Pro | $9.99 | one-time |


### Sample for Science

[App page](https://appshunter.io/ios/app/sample-for-science/id6470819452)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PHR Practice Test 2026 by ABC free?

PHR Practice Test 2026 by ABC is free to download, with in-app purchases available.

### Is Sample for Science free?

Sample for Science is free to download, with no in-app purchases.

### Do PHR Practice Test 2026 by ABC or Sample for Science have ads?

PHR Practice Test 2026 by ABC shows ads; Sample for Science does not.

### Which is updated more often, PHR Practice Test 2026 by ABC or Sample for Science?

PHR Practice Test 2026 by ABC ships an update every 3 months, and Sample for Science every 6 weeks. Most recently, PHR Practice Test 2026 by ABC was updated on October 15, 2026 and Sample for Science on October 12, 2026.

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