J. J. Keller Learning Center vs CristCDL.com Practice Test CDL
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
J. J. Keller Learning Center
Access essential safety and health training courses on your mobile device. Download courses for offline access and easily communicate with your trainer. A guide is available for new learners to help navigate the platform.
- On-the-go access to training
- Offline course downloads
- Direct messaging to trainers
- Guide for new learners
- Immediate access after login
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Get easy, on-the-go access to critical training that will help you stay safe and healthy with J. J. Keller® Training Learning Center. Start training immediately after logging in where you’ll find all of the online training courses assigned to you right on the home page. Got a question about the training? Use the Contact Trainer tab to quickly send your trainer a message. Need help using or navigating your courses? The handy Guide for New Learners tells you everything you need to know, from start to finish. Poor or no internet connection? Simply download the course(s) you want to take. Getting the training you need to work safely each day has never been easier.
CristCDL.com Practice Test CDL
Prepare for your Commercial Driver's License (CDL) exams with state-specific practice tests. Access a comprehensive question bank, including specialized endorsements, and receive immediate feedback with explanations for each answer. Download your state manual for further study.
- State-specific practice tests
- General Knowledge tests
- Endorsement tests (Air Brakes, Tanker, etc.)
- Pre-Trip Inspection tests and videos
- Immediate answer feedback with explanations
- Downloadable state CDL manuals
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Put yourself in the drivers seat! Passing the CDL BMV exams made easy. With over 30 years experience in the CDL field we have more questions that appear on the CDL written exams than any other site. No sign up or sign in required, no payments to unlock tests, just great information at your fingertips. Our practice tests are state specific and include General Knowledge, Air Brakes, Combination, Tanker, Doubles and Triples, Hazardous Material, School Bus, Passenger, and have tests and videos for the Pre Trip Inspection. Each test provides immediate feedback on your answer, showing if you got it correct or incorrect with an explanation for the correct answer, and should be used along with you current state manual which we included in the app for download. Since 1999 we have offered these tests online, and are moving to provide them within an app!
Screenshots
Verdict
The clearest difference is rating: J. J. Keller Learning Center at 2.6 against CristCDL.com Practice Test CDL's 1.7. J. J. Keller Learning Center also leads on ads (none vs shown) and monetization model (free vs ad-supported). CristCDL.com Practice Test CDL's advantage is review sentiment (16% vs 0%) and ratings volume (130 vs 16). On price, in-app purchases, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
J. J. Keller Learning Center holds the better App Store score, 2.6 against 1.7. That said, the two scores are not equally well evidenced: CristCDL.com Practice Test CDL has 130 ratings behind it against 16, so its average is the more settled of the two. Written reviews complicate that: 0% of J. J. Keller Learning Center's written reviews are positive against 16% of CristCDL.com Practice Test CDL's, so the app with the better star average is not the one people write more warmly about.
J. J. Keller Learning Center ships an update every 2 months, CristCDL.com Practice Test CDL every 5 months. The most recent releases landed on October 20, 2026 and October 24, 2026 respectively.
| Parameter | J. J. Keller Learning Center | CristCDL.com Practice Test CDL |
|---|---|---|
| Price | Free | Free |
| Rating | 2.6 (16 ratings) — better | 1.7 (130 ratings) |
| Positive reviews | 0.0% of reviews | 15.9% of reviews — better |
| Number of ratings | 16 | 130 — better |
| Update frequency | Every 2 months — better | Every 5 months |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.4 — better | 15.5 |
| Further details — not scored | ||
| Size | 112 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | J. J. Keller & Associates, Inc. | William Crist |
Customer experience
J. J. Keller Learning Center
CristCDL.com Practice Test CDL
In-app purchases
J. J. Keller Learning Center
No in-app purchases
CristCDL.com Practice Test CDL
No in-app purchases
Questions
Is J. J. Keller Learning Center free?
Is CristCDL.com Practice Test CDL free?
Which has better reviews, J. J. Keller Learning Center or CristCDL.com Practice Test CDL?
Do J. J. Keller Learning Center or CristCDL.com Practice Test CDL have ads?
Which is updated more often, J. J. Keller Learning Center or CristCDL.com Practice Test CDL?
Other comparisons
