# PDG Mastery vs CertGPS

The clearest difference is in-app purchases: CertGPS at none against PDG Mastery's 7. CertGPS also leads on update cadence (weekly vs every 2 months) and rating (5.0 vs 4.8). PDG Mastery's advantage is ratings volume (63 vs 1) and iOS requirement (12.0 vs 16.6). On price, ads and device support there is nothing between them.

Both are free to download. PDG Mastery sells 7 in-app purchases, starting at $6.49 per month. CertGPS asks for nothing beyond the download.

CertGPS holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: PDG Mastery has 63 ratings behind it against 1, so its average is the more settled of the two.

PDG Mastery ships an update every 2 months, CertGPS weekly. Both last shipped on October 24, 2026.

## The numbers

| Metric | PDG Mastery | CertGPS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (63 ratings)](https://appshunter.io/ios/app/pdg-mastery-promote-to-e5-e6/id1635325038/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/certgps/id6755209531/reviews)** |
| Number of ratings | **63** | 1 |
| Positive reviews | 16.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 60 MB | 16 MB |
| Requires iOS | **12.0** | 16.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [PDG APPS SRL](https://appshunter.io/developer/1564413494) | [Boston Identity LLC](https://appshunter.io/developer/1846676044) |

## What reviewers say

### PDG Mastery

[App page](https://appshunter.io/ios/app/pdg-mastery-promote-to-e5-e6/id1635325038)

Prepare for military promotion exams with comprehensive study materials, practice questions, and exam simulators. Master all testable chapters and develop effective study strategies to boost your confidence and achieve a high score.

**Highlights:** Master AFH 1 chapters, Exam simulators, 3000+ practice questions, Score prediction, Motivation techniques, Progress tracking, Latest content updates

**Features:** macOS Compatibility

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Special Offer | $6.49 | per month |
| 1 Week | $6.99 | per 7 days |
| Special Offer | $8.49 | per 3 months |
| 1 Month | $8.99 | per month |
| 1 Month | $12.99 | per month |
| 3 Months | $16.99 | per 3 months |
| Lifetime Access | $39.99 | one-time |


### CertGPS

[App page](https://appshunter.io/ios/app/certgps/id6755209531)

This app guides users through the cybersecurity certification landscape, helping them discover, track, and share their progress. It offers a comprehensive database of certifications with detailed comparison information and personalized journey tracking.

**Highlights:** Discover 55+ cybersecurity certifications, Filter by domain, role, provider, difficulty, Compare exam costs and study duration, Track certifications: Wishlist, Studying, Completed, Set target dates and progress tracking, Create a public profile to showcase credentials, Read expert articles and case studies

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PDG Mastery free?

PDG Mastery is free to download, with in-app purchases available.

### Is CertGPS free?

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

### Which has better reviews, PDG Mastery or CertGPS?

CertGPS is rated higher. PDG Mastery averages 4.8 out of 5 from 63 ratings, while CertGPS averages 5.0 from 1 ratings.

### Do PDG Mastery or CertGPS have ads?

Neither PDG Mastery nor CertGPS shows ads.

### Which is updated more often, PDG Mastery or CertGPS?

PDG Mastery ships an update every 2 months, and CertGPS weekly. Most recently, PDG Mastery was updated on October 24, 2026 and CertGPS on October 24, 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.*