# TrainerCentral vs CDL Prep

The clearest difference is in-app purchases: TrainerCentral at none against CDL Prep's 6. TrainerCentral also leads on ads (none vs shown). CDL Prep's advantage is update cadence (daily vs weekly). On price, device support and iOS requirement there is nothing between them.

Both are free to download. CDL Prep sells 6 one-off in-app purchases. TrainerCentral asks for nothing beyond the download.

TrainerCentral ships an update weekly, CDL Prep daily. The most recent releases landed on October 6, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | TrainerCentral | CDL Prep |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/trainercentral-learner/id1582771661/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 60.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Weekly | **Daily** |
| Monetization | Free | — |
| Size | 161 MB | 38 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Zoho Corporation](https://appshunter.io/developer/388384807) | [Prince Verma](https://appshunter.io/developer/1838550194) |

## What reviewers say

### TrainerCentral

[App page](https://appshunter.io/ios/app/trainercentral-learner/id1582771661)

Access a variety of courses and live sessions from trainers worldwide. Submit assignments, receive feedback, and earn e-certificates upon completion. Engage in interactive virtual sessions, quizzes, and discussions.

**Highlights:** Access course materials, Submit assignments, Receive trainer feedback, Take tests and quizzes, Earn e-certificates, Participate in live virtual sessions, Join breakout rooms

**Features:** Vision Pro support

**In-app purchases:** none


### CDL Prep

[App page](https://appshunter.io/ios/app/cdl-prep-all-50-states/id6809552402)

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tanker Endorsement | $3.99 | one-time |
| Doubles and Triples | $3.99 | one-time |
| Air Brakes Endorsement | $4.99 | one-time |
| Combination Vehicles | $4.99 | one-time |
| HazMat Endorsement | $6.99 | one-time |
| All Endorsements | $14.99 | one-time |


## Frequently asked questions

### Is TrainerCentral free?

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

### Is CDL Prep free?

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

### Do TrainerCentral or CDL Prep have ads?

CDL Prep shows ads; TrainerCentral does not.

### Which is updated more often, TrainerCentral or CDL Prep?

TrainerCentral ships an update weekly, and CDL Prep daily. Most recently, TrainerCentral was updated on October 6, 2026 and CDL Prep on September 28, 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.*