Top Hat vs HDT Training
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Top Hat
Enhance your learning experience with interactive resources, in-class participation tools, and dynamic digital textbooks. Engage with professors and peers, and test your knowledge with quizzes and polls to improve comprehension and retention.
- Follow lecture slides on your device
- In-class response system
- In-app discussions with peers and professors
- Dynamic, interactive digital textbooks
- Take polls and quizzes
- Access graded and non-graded homework
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Top Hat is the perfect companion app to our comprehensive assessment platform that helps you learn better before, during and after class. Top Hat makes learning fun and engaging (seriously!) and sets you up for success, helping you connect with your professors, your peers and the content you’re learning in and out of the classroom. Here’s what Top Hat offers you: Compelling resources, delivered on your smartphone or laptop: • Follow your prof’s lecture slides on your own device • Contribute in class with an easy-to-use response system that’s always with you • Participate with your profs and peers using in-app discussions Content tailored to your course: • Experience dynamic, interactive textbooks loaded up with images, videos, audio clips and more • Read your digital materials from anywhere and keep them forever Quizzes, tests and polls that improve learning comprehension: • Challenge yourself by taking polls and quizzes on your own devices • Improve your knowledge retention with interactive assessment elements • Check for gaps in your understanding with graded and non-graded homework and short quizzes Thanks for using Top Hat. As you experience the app, we’d love to get your feedback: support@tophat.com or follow us on Instagram, Twitter or Facebook @TopHat
HDT Training
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Heavy Duty Transaxle offers self-paced online training built for the off-highway and industrial drivetrain industry. From OEMs to service shops and individual techs, our courses focus on practical maintenance, troubleshooting, and application engineering—giving teams the skills they need on the job. - Comprehensive, Equipment-Focused Training - Affordable and Flexible - Real World Education, Real World Credibility
Screenshots
Verdict
The clearest difference is in-app purchases: Top Hat at none against HDT Training's 1. Top Hat also leads on update cadence (every 2 weeks vs every 2 months) and chart position (#192 vs unranked). HDT Training's advantage is iOS requirement (15.2 vs 17.0). On price, ads and device support 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. HDT Training sells 1 one-off in-app purchase. Top Hat asks for nothing beyond the download.
Top Hat ships an update every 2 weeks, HDT Training every 2 months. The most recent releases landed on October 30, 2026 and October 10, 2026 respectively.
| Parameter | Top Hat | HDT Training |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (23K ratings) — better | — |
| Positive reviews | 15.1% of reviews | — |
| Number of ratings | 23K — better | — |
| Update frequency | Every 2 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Best chart rank | #192 — better | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 15.2 — better |
| Further details — not scored | ||
| Size | 152 MB | 113 MB |
| Age rating | 4+ | 4+ |
| Developer | Top Hat Monocle | Heavy Duty Transaxle Inc. |
Bugs and requests
Top Hat
Reported bugs
3 issues- Answers not registering correctly
- Slides not loading properly on mobile devices
- Inconsistent performance across platforms
Requested features
3 requests- Add page numbers and search functionality to ebooks
- Improve syncing between mobile and web versions
- Allow more flexible location settings for attendance
HDT Training
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Top Hat
No in-app purchases
HDT Training
- HDT Academy Methodology$0.99
Questions
Is Top Hat free?
Is HDT Training free?
Do Top Hat or HDT Training have ads?
Which is updated more often, Top Hat or HDT Training?
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