# Addon Skills vs PgMP Prep & Test

The clearest difference is in-app purchases: Addon Skills at none against PgMP Prep & Test's 3. Addon Skills also leads on update cadence (every 6 days vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. PgMP Prep & Test sells 3 in-app purchases, starting at $4.99 per month. Addon Skills asks for nothing beyond the download.

Addon Skills ships an update every 6 days, PgMP Prep & Test every 2 months. The most recent releases landed on September 12, 2026 and May 16, 2026 respectively.

## The numbers

| Metric | Addon Skills | PgMP Prep & Test |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 2 months |
| Size | 25 MB | 19 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Addon Skills Private Limited](https://appshunter.io/developer/1590540657) | [学勇 张](https://appshunter.io/developer/590340880) |

## What reviewers say

### Addon Skills

[App page](https://appshunter.io/ios/app/addon-skills/id1590540655)

**Features:** macOS Compatibility

**In-app purchases:** none


### PgMP Prep & Test

[App page](https://appshunter.io/ios/app/pgmp-prep-and-test/id6503639240)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MONTHLY | $4.99 | per month |
| 3 MONTHS | $9.99 | per 3 months |
| YEARLY | $19.99 | per year |


## Frequently asked questions

### Is Addon Skills free?

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

### Is PgMP Prep & Test free?

PgMP Prep & Test is free to download, with in-app purchases available.

### Do Addon Skills or PgMP Prep & Test have ads?

Neither Addon Skills nor PgMP Prep & Test shows ads.

### Which is updated more often, Addon Skills or PgMP Prep & Test?

Addon Skills ships an update every 6 days, and PgMP Prep & Test every 2 months. Most recently, Addon Skills was updated on September 12, 2026 and PgMP Prep & Test on May 16, 2026.

---

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