Comparison

Hazard Perception Test Kit vs DfT Know Your Traffic Signs

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Hazard Perception Test Kit

Prepare for your UK driving theory test with licensed revision videos. Features interactive scoring, cheat detection, and progress tracking to help you master hazard perception.

Highlights
  • 80 DVSA licensed revision videos
  • Interactive scoring with explanations
  • Cheat detection software
  • Progress tracking
  • Professional explanations for each video
  • UK-based support team
Features
Read full description

Join 5 million drivers who learnt using our driving theory test apps! Prepare for your UK Hazard Perception test with this easy to use application featuring 80 DVSA LICENSED and unique Hazard Perception Revision Videos: *** 80 Unique Hazard Perception Test Videos *** CGI and real-life HPT videos made by the DVSA plus 36 extra clips only available here. All videos include interactive scoring with full explanations. *** ANTI CHEATING MECHANISM *** Cheat detection software checks whether the way you respond could be flagged as cheating in the real test. *** Track your Progress *** Records your progress so you can see how you’re doing and when you’re ready to pass. *** Professional Explanations *** Every video explains what you need to know and how to improve your score *** Need Help? *** Contact our UK-based support team at support@drivingtheorytest.org ____________________________________ This app is designed for learner car drivers who need to practice for the UK DVSA driving theory test in order to obtain a driving license. Terms & Conditions: https://drivingtheorytest.org/termsandconditions/ * Crown Copyright material reproduced under licence from the Driver and Vehicle Standards Agency which does not accept any responsibility for the accuracy of the reproduction. Deep River Development is a limited company based in Cambridge, UK.

About

DfT Know Your Traffic Signs

Master UK road and traffic signs to pass your theory test. This app offers an interactive guide with over 1000 signs, practice questions, and a progress tracker. Learn anytime, anywhere, even offline.

Highlights
  • Interactive official sign guide
  • Over 1000 signs, markings, and layouts
  • 150 practice questions with explanations
  • Advanced search feature
  • English voiceover option
  • Progress gauge for readiness assessment
  • Offline usability
Read full description

This app will help you keep up to date with all the latest road and traffic signs to keep you safe on the road and pass your theory test. Know Your Traffic Signs is one of the essential source materials for all UK theory tests. This includes car, motorcycle, lorry, bus and coach, and approved driving instructors (ADI). Featuring over 1000 signs, markings and road layouts, this app is vital for learner drivers and riders, everyone who drives for work, approved driving instructors (ADIs) and trainers. Our app is suitable for all road users in the UK. This app can be used offline so that you can learn anytime, anywhere. KNOW YOUR TRAFFIC SIGNS • navigate through an interactive copy of the Official Know Your Traffic Signs. It features images, diagrams, and useful links to support your understanding. • designed to complement The Highway Code (which only has a limited selection of traffic signs and road markings), Know Your Traffic Signs is the perfect guide for improving your knowledge of UK traffic signs! STUDY AND PRACTICE • assess your understanding of UK traffic and road signs by practicing a total of 150 questions. Got a question wrong? See the correct answer, note the explanation, and find out more with references to more useful DVSA guides! SEARCH FEATURE • want to know more about ‘contraflow lanes’, ‘roundabouts’, or ‘minimum speed’ signs? Get straight to the content you need with our advanced search tool. ENGLISH VOICEOVER • if reading is hard for you, like with dyslexia, or if you learn better by listening, use the voiceover feature in the test section to help you out. PROGRESS GAUGE • backed by learning science, use the progress gauge to know when you're ready to pass your theory test! FEEDBACK • missing something? Let us know what you’d like to see. We’d love to hear from you with any comments or suggestions about this app. SUPPORT • need support? Contact our UK-based team at feedback@williamslea.com or +44 (0)333 202 5070. We listen and respond to your feedback by updating the app and adding new features. So, help others in their studies by letting us know what you’d like to see!

Screenshots

Hazard Perception Test Kit2 screens
DfT Know Your Traffic Signs4 screens

Verdict

The call

The clearest difference is review sentiment: DfT Know Your Traffic Signs at 78% against Hazard Perception Test Kit's 20%. DfT Know Your Traffic Signs also leads on in-app purchases (none vs 3). Hazard Perception Test Kit's advantage is price (Free vs $2.99) and update cadence (weekly vs every 4 months). On ads, 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

CostPrice · In-app purchases · Ads · Monetization

Hazard Perception Test Kit is free to download; DfT Know Your Traffic Signs costs $2.99 up front. Hazard Perception Test Kit sells 3 one-off in-app purchases. DfT Know Your Traffic Signs asks for nothing beyond the download.

UpkeepUpdate frequency

Hazard Perception Test Kit ships an update weekly, DfT Know Your Traffic Signs every 4 months. The most recent releases landed on November 8, 2026 and November 7, 2026 respectively.

Scorecard5 real differences · 5 level
Hazard Perception Test Kit versus DfT Know Your Traffic Signs: the parameters behind the verdict, then further details
ParameterHazard Perception Test KitDfT Know Your Traffic Signs
PriceFree — better$2.99
Rating4.5 (6 ratings) — better—
Positive reviews20.3% of reviews77.8% of reviews — better
Number of ratings6 — better—
Update frequencyWeekly — betterEvery 4 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS1515.0
Further details — not scored
Size70 MB99 MB
Age rating4+4+
DeveloperDeep River Development LtdTSO (The Stationery Office)

Customer experience

Hazard Perception Test Kit

All ratings6 ratings
Positive83.3%
Neutral16.7%
Negative0.0%
Written reviews59 reviews
Positive20.3%
Neutral6.8%
Negative72.9%

DfT Know Your Traffic Signs

Written reviews9 reviews
Positive77.8%
Neutral11.1%
Negative11.1%

Bugs and requests

Hazard Perception Test Kit

Reported bugs

8 issues
  • Videos not loading/playing
  • Subscription not working/bugging out
  • Paid content not unlocking
  • App crashes or doesn't open
  • Download errors
Show 3 more
  • Incorrect scoring
  • Low video resolution
  • No sound on videos

Requested features

6 requests
  • More free videos
  • Clearer pricing for subscriptions
  • Better video resolution
  • Improved scoring system
  • More detailed feedback after videos
Show 1 more
  • Sound on practice videos

DfT Know Your Traffic Signs

Not enough reviews yet to summarise bugs or requests.

In-app purchases

3 purchases

Hazard Perception Test Kit

One-time3
  • HPT Full Version$3.99
  • Full Hazard Perception Videos$3.99
  • Hazard Perception Test 4 in 1$4.99
None

DfT Know Your Traffic Signs

No in-app purchases

Questions

Is Hazard Perception Test Kit free?
Hazard Perception Test Kit is free to download, with in-app purchases available.
Is DfT Know Your Traffic Signs free?
DfT Know Your Traffic Signs costs $2.99, with no in-app purchases.
Do Hazard Perception Test Kit or DfT Know Your Traffic Signs have ads?
Neither Hazard Perception Test Kit nor DfT Know Your Traffic Signs shows ads.
Which is updated more often, Hazard Perception Test Kit or DfT Know Your Traffic Signs?
Hazard Perception Test Kit ships an update weekly, and DfT Know Your Traffic Signs every 4 months. Most recently, Hazard Perception Test Kit was updated on November 8, 2026 and DfT Know Your Traffic Signs on November 7, 2026.

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