# PDB Prep vs Old Mission UMC

The clearest difference is in-app purchases: Old Mission UMC at none against PDB Prep's 4. Old Mission UMC also leads on device support (4 vs 2). PDB Prep's advantage is update cadence (every 3 weeks vs every 15 months). On price, ads and iOS requirement there is nothing between them.

Both are free to download. PDB Prep sells 4 in-app purchases, starting at $99.99 per month. Old Mission UMC asks for nothing beyond the download.

PDB Prep ships an update every 3 weeks, Old Mission UMC every 15 months. The most recent releases landed on October 16, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | PDB Prep | Old Mission UMC |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 46.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 15 months |
| Monetization | Subscription | — |
| Size | 70 MB | 57 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Apple TV** |
| Age rating | 12+ | 4+ |
| Developer | [Steven Glickman](https://appshunter.io/developer/1618986296) | [OLD MISSION UNITED METHODIST CHURCH, INC.](https://appshunter.io/developer/1828153557) |

## What reviewers say

### PDB Prep

[App page](https://appshunter.io/ios/app/pdb-prep/id1618986294)

Prepare for your Pediatric Dental Board exams with a comprehensive flashcard system. Access over 1,000 high-yield questions, detailed explanations, and clinical scenarios to build in-depth knowledge. Track your progress and master the material for test day success.

**Highlights:** 1,000+ high-yield questions, 8 exam-based categories, Detailed explanations, Full-color images, Clinical scenarios with radiographs, Question sorting by knowledge level

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $99.99 | per month |
| Quarterly Premium | $149.99 | per 3 months |
| Six Month Premium | $199.99 | per 6 months |
| Yearly Premium | $249.99 | per year |


### Old Mission UMC

[App page](https://appshunter.io/ios/app/old-mission-umc/id6748941930)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is PDB Prep free?

PDB Prep is free to download, with in-app purchases available.

### Is Old Mission UMC free?

Old Mission UMC is free to download, with no in-app purchases.

### Do PDB Prep or Old Mission UMC have ads?

Neither PDB Prep nor Old Mission UMC shows ads.

### Which is updated more often, PDB Prep or Old Mission UMC?

PDB Prep ships an update every 3 weeks, and Old Mission UMC every 15 months. Most recently, PDB Prep was updated on October 16, 2026 and Old Mission UMC on October 24, 2026.

---

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