# Behavior Science Cram Cards vs PDB Prep

The clearest difference is review sentiment: Behavior Science Cram Cards at 100% against PDB Prep's 47%. Behavior Science Cram Cards also leads on in-app purchases (none vs 4) and iOS requirement (12.0 vs 15.0). PDB Prep's advantage is price (Free vs $9.99). On update cadence, ads and device support there is nothing between them.

PDB Prep is free to download; Behavior Science Cram Cards costs $9.99 up front. PDB Prep sells 4 in-app purchases, starting at $99.99 per month. Behavior Science Cram Cards asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Behavior Science Cram Cards | PDB Prep |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/behavior-science-cram-cards/id1040405845/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | **100.0% of reviews** | 46.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | **Paid** | Subscription |
| Size | 16 MB | 70 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 12+ |
| Developer | [Cram Cards](https://appshunter.io/developer/733135273) | [Steven Glickman](https://appshunter.io/developer/1618986296) |

## What reviewers say

### Behavior Science Cram Cards

[App page](https://appshunter.io/ios/app/behavior-science-cram-cards/id1040405845)

This app offers digital flashcards for dental students preparing for board exams. It features over 700 cards with illustrations, progress tracking, and personalized learning to help users study efficiently and score higher.

**Highlights:** Over 700 digital flashcards, Illustrated content with 40+ pictures, Progress tracking and statistics, Personalized learning adaptation, Lightning-fast card filtering, Convenient digital format

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is Behavior Science Cram Cards free?

Behavior Science Cram Cards costs $9.99, with no in-app purchases.

### Is PDB Prep free?

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

### Do Behavior Science Cram Cards or PDB Prep have ads?

Neither Behavior Science Cram Cards nor PDB Prep shows ads.

### Which is updated more often, Behavior Science Cram Cards or PDB Prep?

Behavior Science Cram Cards ships an update every 3 weeks, and PDB Prep every 3 weeks. Most recently, Behavior Science Cram Cards was updated on November 2, 2026 and PDB Prep on November 3, 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.*