Comparison

Driver's Ed Lite vs GravLens3

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

Head to head
About

Driver's Ed Lite

Prepare for your DMV permit test with this study and practice app. It offers topic-based learning, mock tests simulating the real exam, and detailed results with explanations. You can also read your state's driver's manual within the app.

Highlights
  • Study laws by topic
  • Mock test simulation
  • Detailed test results with explanations
  • Read state driver's manual
  • Progress tracking meter
  • Randomized questions
  • Shake to skip question
Features
Read full description

Prepare to pass your DMV permit test with your iDevice. PREPARE BY TOPICS: You can study the laws by topic. All questions are sorted by topic. It also tells you the areas that each topic covers. Accidents Alertness Attitude Documents Hazard Awareness Motorway Rules Other Types of Vehicle Road and Traffic Signs ************************************************************** Full Version has over 525 questions. This free version only has 40 questions. ************************************************************** MOCK TEST MODE: Mock test simulates the real test format. Questions are presented randomly from all the topics. DETAILED TEST RESULTS: A summary of the practice test is presented at the end of each test. It shows you the time you took, the score, which questions you answered correctly and where you were wrong, explanation for all questions. READ YOUR STATE'S DRIVERS MANUAL: You can also read your state's driver's handbook/manual in landscape and portrait mode. PROGRESS METER: The app records your progress as you start giving practice tests. It shows you a beautiful bar chart so that you can track your weak areas and give more focus on them. VERY EASY TO USE: The slick user interface allows you to choose from possible answers. You don't need to press too many buttons or encounter any alert messages. The app is very interactive and needs minimum user input. Innovative use of iPhone's small screen real estate. Shake your iPhone/iPod to skip a question. FEATURE LIST: • Choose number of questions you would like in each test. • Shows test results in HTML format with explanation for each question. • A new module, "Progress Meter" keeps track of how you are performing in a particular topic or mock test. • Choose your own timer settings. • Shake your iPhone/iPod to skip a question. • Cool sound effects. (You can turn them off if desired.) • Choose your own zoom factor for your question graphics. • Special algorithm that randomizes questions every time you take a test. * Privacy Policy: http://www.webrichsoftware.com/privacy.html * EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

GravLens3

Simulate the effects of gravitational lensing on your iPhone or iPad. Adjust lens parameters and apply distortions to your photos or live camera feed. Share your creations or project them for educational purposes.

Highlights
  • Simulate Hubble Space Telescope images
  • Adjust lens size and ellipticity
  • Distort photos from library or camera
  • Live real-time lensing view
  • AirPlay and external monitor support
  • Save and share distorted images
Features
Read full description

Gravitational lensing is a remarkable astrophysical phenomenon, where the light of a distant galaxy is bent by a massive foreground galaxy. Now you can simulate the effect of a gravitational lens on your iPhone or iPad! With GravLens3, a remarkable and educational tool you can: * Simulate Hubble Space Telescope images of strong gravitational lenses * Adjust the size and ellipticity of the lens model * See the distortion on a picture from your photo library or camera * Save the image, tweet it, post to Facebook, or print it * Live View: view the world through a gravitational lens! Real-time lensing with your camera. * Airplay and external monitor support. Broadcast your lensing to an external projector or Apple TV. Great for lectures! * Retina display, iPhone 6/6 plus all supported.

Screenshots

Driver's Ed Lite4 screens
GravLens33 screens

Verdict

The call

The clearest difference is rating: Driver's Ed Lite at 4.2 against GravLens3's 3.7. Driver's Ed Lite also leads on update cadence (monthly vs every 17 months). GravLens3's advantage is in-app purchases (none vs 1) and review sentiment (80% vs 63%). On price, ratings volume, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Driver's Ed Lite sells 1 one-off in-app purchase. GravLens3 asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Driver's Ed Lite holds the better App Store score, 4.2 against 3.7. Both are backed by a comparable volume of ratings — 13 and 6 respectively. Written reviews complicate that: 63% of Driver's Ed Lite's written reviews are positive against 80% of GravLens3's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Driver's Ed Lite ships an update monthly, GravLens3 every 17 months. The most recent releases landed on October 15, 2026 and October 14, 2026 respectively.

Scorecard6 real differences · 4 level
Driver's Ed Lite versus GravLens3: the parameters behind the verdict, then further details
ParameterDriver's Ed LiteGravLens3
PriceFreeFree
Rating4.2 (13 ratings) — better3.7 (6 ratings)
Positive reviews63.0% of reviews80.0% of reviews — better
Number of ratings13 — better6
Update frequencyMonthly — betterEvery 17 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.06.1 — better
Further details — not scored
Size142 MB4 MB
Age rating4+4+
DeveloperWebrich Software LimitedEli Rykoff

Customer experience

Driver's Ed Lite

All ratings13 ratings
Positive76.9%
Neutral7.7%
Negative15.4%
Written reviews73 reviews
Positive63.0%
Neutral6.8%
Negative30.1%

GravLens3

All ratings6 ratings
Positive66.7%
Neutral0.0%
Negative33.3%
Written reviews5 reviews
Positive80.0%
Neutral0.0%
Negative20.0%

Bugs and requests

Driver's Ed Lite

Reported bugs

12 issues
  • Crashes right after completing a test
  • App crashes after update
  • App won't open
  • Keeps exiting and returning to home screen
  • Progress meter resets to zero
Show 7 more
  • Practice tests have errors with answers
  • App keeps reinstalling itself
  • App runs in background slowing down device
  • Upgrade keeps loading
  • California handbook crashes frequently
  • App crashes on startup
  • App takes a long time to download/update

Requested features

14 requests
  • Update for iOS 11 compatibility
  • Fix crashing issue after tests
  • Improve app for iPhone
  • Add bookmarks or progress tracking
  • More challenging questions
Show 9 more
  • Canadian version
  • Mix up answer order
  • More handbooks for different states (e.g., Virginia)
  • Fix issues with practice tests
  • Improve helpful hints tone
  • Make mock test harder
  • Provide state-specific tests
  • Add dark mode
  • Better progress meter functionality

GravLens3

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Driver's Ed Lite

One-time1
  • Full Question Bank$2.99
None

GravLens3

No in-app purchases

Questions

Is Driver's Ed Lite free?
Driver's Ed Lite is free to download, with in-app purchases available.
Is GravLens3 free?
GravLens3 is free to download, with no in-app purchases.
Which has better reviews, Driver's Ed Lite or GravLens3?
Driver's Ed Lite is rated higher. Driver's Ed Lite averages 4.2 out of 5 from 13 ratings, while GravLens3 averages 3.7 from 6 ratings.
Do Driver's Ed Lite or GravLens3 have ads?
Neither Driver's Ed Lite nor GravLens3 shows ads.
Which is updated more often, Driver's Ed Lite or GravLens3?
Driver's Ed Lite ships an update monthly, and GravLens3 every 17 months. Most recently, Driver's Ed Lite was updated on October 15, 2026 and GravLens3 on October 14, 2026.

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