Which app should you get?
All three apps share the same engine. Pick the one that matches the exam you're sitting for — or get all three if you're working toward a full Class A with endorsements.
| Feature |  CDL Test |  HazMat Test |  Air Brakes Test |
|---|---|---|---|
| Practice questions | 800+ | 210+ | 252+ |
| Topics covered | 8 endorsement areas | 3 exam areas | 13 practice tests |
| Mock tests | ✓ | ✓ | ✓ |
| Realistic exam timing | ✓ | ✓ | ✓ |
| Flash cards | ✓ | ✓ | ✓ |
| Voice readout | ✓ | ✓ | ✓ |
| Offline mode | ✓ | ✓ | ✓ |
| Quick Reference sheets | ✓ | ✓ | — |
| Field Tools (HOS, Pre-trip…) | ✓ | ✓ | — |
| ERG 2024 reference | — | ✓ | — |
| Placarding decision tool | — | ✓ | — |
| iCloud sync | ✓ | ✓ | — |
| Best for | First-time CDL applicants | HazMat (H) endorsement | Air Brakes endorsement |
CDL Test
Comprehensive practice for the CDL General Knowledge test and all endorsements.
HazMat Test
Earn your Hazardous Materials (H) endorsement with confidence — including Tank and Doubles/Triples.
Air Brakes Test
Practice everything on the Air Brakes endorsement test: dual systems, low-air warnings, slack adjusters, and more.