# CDL Prep Practice Test vs STL Transportation

The clearest difference is in-app purchases: STL Transportation at none against CDL Prep Practice Test's 15. CDL Prep Practice Test's advantage is ratings volume (2.5K vs 4) and update cadence (every 3 days vs every 2 weeks). On price, rating, review sentiment and ads there is nothing between them.

Both are free to download. CDL Prep Practice Test sells 11 in-app purchases, starting at $11.99 per 7 days. STL Transportation asks for nothing beyond the download.

STL Transportation holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: CDL Prep Practice Test has 2.5K ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 94% of CDL Prep Practice Test's written reviews are positive against 100% of STL Transportation's.

CDL Prep Practice Test ships an update every 3 days, STL Transportation every 2 weeks. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | CDL Prep Practice Test | STL Transportation |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (2.5K ratings)](https://appshunter.io/ios/app/cdl-prep-practice-test-2026/id6752642386/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/stl-transportation/id6812144405/reviews)** |
| Number of ratings | **2.5K** | 4 |
| Positive reviews | 93.8% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 2 weeks |
| Monetization | Free with in-app purchases | **Free** |
| Size | 74 MB | 18 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Aignite Inc.](https://appshunter.io/developer/1753704094) | [STL Transportation LLC](https://appshunter.io/developer/6812144827) |

## What reviewers say

### CDL Prep Practice Test

[App page](https://appshunter.io/ios/app/cdl-prep-practice-test-2026/id6752642386)

Prepare for your Commercial Driver's License exam with state-aligned practice questions and realistic simulators. Features adaptive study plans, detailed explanations, and a readiness score to track your progress and boost confidence for test day.

**Highlights:** State-aligned practice questions, Realistic exam simulators, Adaptive study plan, Readiness score, Missed questions drills, Smart explanations, All endorsements covered

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

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium Subscription | $11.99 | per 7 days |
| Premium monthly subscription | $15.99 | per month |
| Premium monthly subscription | $15.99 | per month |
| Premium monthly subscription | $15.99 | per month |
| CDL Premium Access - 1 Month | $19.99 | per month |
| CDL Premium monthly subscription | $19.99 | per month |
| Premium monthly subscription | $19.99 | per month |
| CDL Premium Access - 1 Month | $24.99 | per month |
| Premium monthly subscription | $24.99 | per month |
| CDL Premium Access - Lifetime | $59.99 | one-time |
| CDL Premium Access - Lifetime | $69.99 | one-time |

**What reviewers like**

- 🚀 Dark mode option
- 💡 Motivating features
- 👍 Exam questions match DMV
- 👍 Helpful for non-readers
- 👍 Passed on first try

**What reviewers complain about**

- 💡 Need more practice questions
- 💡 Need more sample questions before paying

**Reported bugs**

- None mentioned

**Requested features**

- More practice questions for Tanker
- More sample questions before purchase


### STL Transportation

[App page](https://appshunter.io/ios/app/stl-transportation/id6812144405)

This app provides parents and guardians with real-time updates on their child's school transportation. Track the vehicle's location on a live map, receive notifications for pickup and drop-off, and view the day's timeline. Message dispatch directly for any urgent needs.

**Highlights:** Live vehicle tracking on map, Pickup and drop-off notifications, Driver and vehicle information, Daily timeline of scheduled events, Direct messaging with dispatch, Privacy-focused design

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

**In-app purchases:** none


## Frequently asked questions

### Is CDL Prep Practice Test free?

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

### Is STL Transportation free?

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

### Which has better reviews, CDL Prep Practice Test or STL Transportation?

STL Transportation is rated higher. CDL Prep Practice Test averages 4.8 out of 5 from 2.5K ratings, while STL Transportation averages 5.0 from 4 ratings.

### Do CDL Prep Practice Test or STL Transportation have ads?

Neither CDL Prep Practice Test nor STL Transportation shows ads.

### Which is updated more often, CDL Prep Practice Test or STL Transportation?

CDL Prep Practice Test ships an update every 3 days, and STL Transportation every 2 weeks. Most recently, CDL Prep Practice Test was updated on October 30, 2026 and STL Transportation on October 31, 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.*