Comparison

LockDown Browser vs Lizard Evolution Virtual Lab

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

Head to head
About

LockDown Browser

This application creates a secure browser environment for online exams, preventing access to other applications, websites, or device functions. It ensures the integrity of assessments by locking users into the exam until submission. It is compatible with specific learning systems and can be used with proctoring systems if enabled by an instructor.

Highlights
  • Locks down exam environment
  • Prevents switching applications
  • Blocks access to other URLs
  • Disables screenshots
  • Prohibits copying or printing
  • Integrates with learning systems
Read full description

LockDown Browser is a custom browser that locks down the exam environment within specific learning and assessment systems. When LockDown Browser is used during an online exam, you are unable to go to other URLs, switch applications, take screenshots, copy questions or print. It essentially locks you into the exam until it’s submitted for grading. Important: This application can only be used with the Respondus Monitor proctoring system if your instructor has enabled the use of an iPad for the exam. If your instructor hasn't enabled the use of an iPad for the exam, you will be unable to use this application with it. While LockDown Browser isn’t the most exciting app available, it does make online assessments possible. And, hey, you can download it for free. This is NOT a limited-feature version and there are NO advertisements of any type.

About

Lizard Evolution Virtual Lab

Explore evolutionary biology concepts through interactive virtual lab modules. Collect data, perform analyses, and answer questions to understand adaptation, speciation, and more. Ideal for high school and undergraduate science courses.

Highlights
  • Evolutionary biology modules
  • Data collection and analysis
  • Phylogenetic analysis
  • Reproductive isolation studies
  • Speciation concepts
  • Educator resources
Features
Read full description

The virtual lab includes four modules that investigate different concepts in evolutionary biology, including adaptation, convergent evolution, phylogenetic analysis, reproductive isolation, and speciation. Each module involves data collection, calculations, analysis and answering questions. The “Educators” tab includes lists of key concepts and learning objectives and detailed suggestions for incorporating the lab in your instruction. The lab is appropriate for students in high school biology and environmental science classes, and undergraduate biology, ecology, environmental science courses. The focus on observation, measurement, and experimental methods makes the lab a good fit for addressing "science as a process" or "nature of science" aspects of the curriculum. The emphasis on the collection, analysis, and graphing of data, connects to the mathematical dimension of biology and general goals of STEM integration. The Howard Hughes Medical Institute (HHMI) is a nonprofit medical research organization that ranks as one of the nation's largest philanthropies. HHMI plays a powerful role in advancing biomedical research and science education. HHMI brings the latest biomedical research into the classroom with the award-winning BioInteractive website, featuring free resources for science education, including lectures, animations, short films, interactive features, and classroom-ready lesson plans and activities. Topics include all areas of biology and earth and environmental science. Vist the website at www.biointeractive.org.

Verdict

The call

The clearest difference is rating: Lizard Evolution Virtual Lab at 1.9 against LockDown Browser's 1.2. Lizard Evolution Virtual Lab also leads on review sentiment (24% vs 8%) and iOS requirement (6.0 vs 15.0). LockDown Browser's advantage is update cadence (every 5 weeks vs every 14 months) and ratings volume (4K vs 22). On price, ads, in-app purchases and monetization model 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Lizard Evolution Virtual Lab holds the better App Store score, 1.9 against 1.2. That said, the two scores are not equally well evidenced: LockDown Browser has 4K ratings behind it against 22, so its average is the more settled of the two. Written reviews point the same way: 8% of LockDown Browser's written reviews are positive against 24% of Lizard Evolution Virtual Lab's.

UpkeepUpdate frequency

LockDown Browser ships an update every 5 weeks, Lizard Evolution Virtual Lab every 14 months. The most recent releases landed on October 12, 2026 and October 7, 2026 respectively.

Scorecard5 real differences · 5 level
LockDown Browser versus Lizard Evolution Virtual Lab: the parameters behind the verdict, then further details
ParameterLockDown BrowserLizard Evolution Virtual Lab
PriceFreeFree
Rating1.2 (4K ratings)1.9 (22 ratings) — better
Positive reviews7.6% of reviews23.5% of reviews — better
Number of ratings4K — better22
Update frequencyEvery 5 weeks — betterEvery 14 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPadiPad
Requires iOS15.06.0 — better
Further details — not scored
Size17 MB361 MB
Age rating4+4+
DeveloperRespondus Inc.Howard Hughes Medical Institute

Customer experience

LockDown Browser

All ratings3,954 ratings
Positive4.5%
Neutral0.9%
Negative94.6%
Written reviews421 reviews
Positive7.6%
Neutral1.7%
Negative90.7%

Lizard Evolution Virtual Lab

All ratings22 ratings
Positive22.7%
Neutral0.0%
Negative77.3%
Written reviews17 reviews
Positive23.5%
Neutral0.0%
Negative76.5%

Bugs and requests

LockDown Browser

Reported bugs

4 issues
  • Fails to load tests and quizzes
  • Prevents device power off and exit
  • Incompatible with other apps like Canvas
  • Randomly kicks users out of exams

Requested features

4 requests
  • Improved compatibility with iPads
  • Better error handling and recovery
  • Streamlined setup and onboarding
  • More user-friendly interface

Lizard Evolution Virtual Lab

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

LockDown Browser

No in-app purchases

None

Lizard Evolution Virtual Lab

No in-app purchases

Questions

Is LockDown Browser free?
LockDown Browser is free to download, with no in-app purchases.
Is Lizard Evolution Virtual Lab free?
Lizard Evolution Virtual Lab is free to download, with no in-app purchases.
Which has better reviews, LockDown Browser or Lizard Evolution Virtual Lab?
Lizard Evolution Virtual Lab is rated higher. LockDown Browser averages 1.2 out of 5 from 4K ratings, while Lizard Evolution Virtual Lab averages 1.9 from 22 ratings.
Do LockDown Browser or Lizard Evolution Virtual Lab have ads?
Neither LockDown Browser nor Lizard Evolution Virtual Lab shows ads.
Which is updated more often, LockDown Browser or Lizard Evolution Virtual Lab?
LockDown Browser ships an update every 5 weeks, and Lizard Evolution Virtual Lab every 14 months. Most recently, LockDown Browser was updated on October 12, 2026 and Lizard Evolution Virtual Lab on October 7, 2026.

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