# PMP Practice Test Prep vs COSA

The clearest difference is rating: COSA at 3.7 against PMP Practice Test Prep's 2.3. COSA also leads on in-app purchases (none vs 1) and update cadence (every 3 months vs every 27 months). PMP Practice Test Prep's advantage is ads (none vs shown) and iOS requirement (9.2 vs 11.0). On price, ratings volume and device support there is nothing between them.

Both are free to download. PMP Practice Test Prep sells 1 one-off in-app purchase. COSA asks for nothing beyond the download.

COSA holds the better App Store score, 3.7 against 2.3. Both are backed by a comparable volume of ratings — 3 and 3 respectively.

PMP Practice Test Prep ships an update every 27 months, COSA every 3 months. The most recent releases landed on October 10, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | PMP Practice Test Prep | COSA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.3 (3 ratings)](https://appshunter.io/ios/app/pmp-practice-test-prep/id940460127/reviews) | **[3.7 (3 ratings)](https://appshunter.io/ios/app/cosa-medication-information/id1626158440/reviews)** |
| Number of ratings | 3 | 3 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 27 months | **Every 3 months** |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 6 MB | 28 MB |
| Requires iOS | **9.2** | 11.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [MOON MOUNTAIN INC](https://appshunter.io/developer/1555760990) | [MEDICAL EDUCATION RESOURCES, LLC](https://appshunter.io/developer/1561046509) |

## What reviewers say

### PMP Practice Test Prep

[App page](https://appshunter.io/ios/app/pmp-practice-test-prep/id940460127)

Prepare for your Project Management Professional (PMP) exam with over 700 practice questions. This app utilizes a proprietary learning technique based on cognitive psychology to aid memorization and understanding. Try 10 free questions daily before upgrading to the full version.

**Highlights:** Over 700 practice questions, Proprietary Effective Learning Strategy (ELS™), Chunking technique for memorization, 10 free questions daily, Pass or its free guarantee, Developed by educators

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PMP Practice Test Premium | $9.99 | one-time |


### COSA

[App page](https://appshunter.io/ios/app/cosa-medication-information/id1626158440)

Access essential drug information and advanced patient resources. This app provides a portion of licensed drug data from a leading healthcare information provider, based on industry-standard databases.

**Highlights:** Essential drug information, Advanced patient resources, Licensed drug data, Industry-standard databases, Physician-focused resources

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PMP Practice Test Prep free?

PMP Practice Test Prep is free to download, with in-app purchases available.

### Is COSA free?

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

### Which has better reviews, PMP Practice Test Prep or COSA?

COSA is rated higher. PMP Practice Test Prep averages 2.3 out of 5 from 3 ratings, while COSA averages 3.7 from 3 ratings.

### Do PMP Practice Test Prep or COSA have ads?

COSA shows ads; PMP Practice Test Prep does not.

### Which is updated more often, PMP Practice Test Prep or COSA?

PMP Practice Test Prep ships an update every 27 months, and COSA every 3 months. Most recently, PMP Practice Test Prep was updated on October 10, 2026 and COSA on September 28, 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.*