# SRCD Events vs CDL Prep

The clearest difference is rating: CDL Prep at 4.8 against SRCD Events's 4.3. CDL Prep also leads on ratings volume (2.6K vs 3). SRCD Events's advantage is in-app purchases (none vs 2) and update cadence (every 2 months vs every 8 months). On price, ads and device support there is nothing between them.

Both are free to download. CDL Prep sells 2 in-app purchases, starting at $6.99 per 7 days. SRCD Events asks for nothing beyond the download.

CDL Prep holds the better App Store score, 4.8 against 4.3. That said, the two scores are not equally well evidenced: CDL Prep has 2.6K ratings behind it against 3, so its average is the more settled of the two.

SRCD Events ships an update every 2 months, CDL Prep every 8 months. The most recent releases landed on June 1, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | SRCD Events | CDL Prep |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (3 ratings)](https://appshunter.io/ios/app/srcd-events/id1185573291/reviews) | **[4.8 (2.6K ratings)](https://appshunter.io/ios/app/cdl-prep-exams-and-study-guide/id1455037780/reviews)** |
| Number of ratings | 3 | **2.6K** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 2 months** | Every 8 months |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 103 MB | 56 MB |
| Requires iOS | **10.0** | 15.1 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Society for Research in Child Development](https://appshunter.io/developer/1185573290) | [LineCentury](https://appshunter.io/developer/1057772456) |

## What reviewers say

### SRCD Events

[App page](https://appshunter.io/ios/app/srcd-events/id1185573291)

This app connects researchers and professionals interested in child development. It facilitates interaction through biennial meetings and special topic events, fostering a global network for sharing research and insights.

**Highlights:** Biennial meetings, Special topic meetings, Global network, Research sharing forum, Interaction opportunities

**Features:** macOS Compatibility

**In-app purchases:** none


### CDL Prep

[App page](https://appshunter.io/ios/app/cdl-prep-exams-and-study-guide/id1455037780)

Prepare for your Commercial Driver's License (CDL) exam with comprehensive study materials and practice tests. This app offers real test questions covering general knowledge, hazmat, passenger vehicles, and air brakes, with detailed answers to help you pass.

**Highlights:** Free CDL preparation, Real test questions, Practice general knowledge tests, All CDL test answers, Covers hazmat and air brakes

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Subscription 1 Week | $6.99 | per 7 days |
| Unlock Everything | $15.99 | one-time |


## Frequently asked questions

### Is SRCD Events free?

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

### Is CDL Prep free?

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

### Which has better reviews, SRCD Events or CDL Prep?

CDL Prep is rated higher. SRCD Events averages 4.3 out of 5 from 3 ratings, while CDL Prep averages 4.8 from 2.6K ratings.

### Do SRCD Events or CDL Prep have ads?

Both SRCD Events and CDL Prep show ads.

### Which is updated more often, SRCD Events or CDL Prep?

SRCD Events ships an update every 2 months, and CDL Prep every 8 months. Most recently, SRCD Events was updated on June 1, 2026 and CDL Prep on September 21, 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.*