# 2391 Inspection & Testing Pro vs CDL Master 2026

The clearest difference is in-app purchases: CDL Master 2026 at none against 2391 Inspection & Testing Pro's 5. CDL Master 2026 also leads on update cadence (weekly vs monthly) and iOS requirement (13.0 vs 16.0). 2391 Inspection & Testing Pro's advantage is ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. 2391 Inspection & Testing Pro sells 5 in-app purchases, starting at $9.99 per month. CDL Master 2026 asks for nothing beyond the download.

2391 Inspection & Testing Pro ships an update monthly, CDL Master 2026 weekly. The most recent releases landed on October 27, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | 2391 Inspection & Testing Pro | CDL Master 2026 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (20 ratings)](https://appshunter.io/ios/app/cdl-master-2026-practice-test/id6757131753/reviews)** |
| Number of ratings | — | **20** |
| Positive reviews | 95.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Weekly** |
| Monetization | Paid | **Ad-supported** |
| Size | 61 MB | 91 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Eknath Kadam](https://appshunter.io/developer/465355268) | [Mert Demir](https://appshunter.io/developer/1864769723) |

## What reviewers say

### 2391 Inspection & Testing Pro

[App page](https://appshunter.io/ios/app/2391-inspection-and-testing-pro/id307859563)

Prepare for your PCV (Bus/Coach) theory test with over 970 official DVSA revision questions. Study by topic, take mock tests, and review detailed results to track your progress and identify weak areas.

**Highlights:** 970+ official DVSA revision questions, Study by topic, Mock test simulation, Detailed test results with email option, Highway Code e-book reader, Progress meter with pie chart, Randomized questions

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $9.99 | per month |
| Quarterly | $19.99 | per 3 months |
| 6 Months | $24.99 | per 6 months |
| Yearly | $39.99 | per year |
| Lifetime Access | $59.99 | one-time |


### CDL Master 2026

[App page](https://appshunter.io/ios/app/cdl-master-2026-practice-test/id6757131753)

Prepare for your CDL permit test with realistic practice questions and an exam simulator. Features audio study mode for on-the-go learning and gamified progress tracking to build confidence and focus on weak areas.

**Highlights:** DMV-style practice tests, Realistic exam simulator, Audio Study Mode, Progress tracking, Smart mistake review, Gamified motivation

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 2391 Inspection & Testing Pro free?

2391 Inspection & Testing Pro is free to download, with in-app purchases available.

### Is CDL Master 2026 free?

CDL Master 2026 is free to download, with no in-app purchases.

### Do 2391 Inspection & Testing Pro or CDL Master 2026 have ads?

CDL Master 2026 shows ads; 2391 Inspection & Testing Pro does not.

### Which is updated more often, 2391 Inspection & Testing Pro or CDL Master 2026?

2391 Inspection & Testing Pro ships an update monthly, and CDL Master 2026 weekly. Most recently, 2391 Inspection & Testing Pro was updated on October 27, 2026 and CDL Master 2026 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.*