Comparison

ZipGrade 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

ZipGrade

Instantly grade multiple-choice tests and quizzes using your device's camera. This app offers a fast and accurate way for educators to assess student work, with features for organizing and exporting results. It provides immediate feedback to inform lesson planning and assignments.

Highlights
  • Instant grading with device camera
  • Supports multiple choice tests and quizzes
  • Organizes and exports results (PDF, Excel)
  • Free answer sheet templates available
  • Companion website for data management
  • Stores results by student, subject, and quiz
Features
Read full description

Teachers can grade multiple choice tests, quizzes, and assessments instantly in the classroom by using their iPhone or iPad's camera as a scanner. It is the most cost effective, fastest, and most accurate way to grade tests in the classroom or where ever you are. -------------------------------------------------------- * Free answer sheets available in several formats and sizes up to 100 questions (including custom form wizard) * Organizes results for reporting and exporting via PDF and Excel-readable format * Uses student ID numbers or written name of student for reporting. * Use companion website (www.zipgrade.com) to manage your data and upload student lists and review results in dozens of reports and exports. -------------------------------------------------------- Use for exit tickets, formative assessments, or regular quizzes. Stores results by students, subject, and quiz. By giving teachers the flexibility to grade papers instantly anywhere, ZipGrade provides immediate feedback on current knowledge and can be used to better focus lessons and assignments. Download ZipGrade free with access to all features and website, but limited to 100 scans per month. After you've used it for a class or two, use the in-app purchase a non-recurring subscription with unlimited scanning.

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.

Screenshots

ZipGrade3 screens

Verdict

The call

The clearest difference is review sentiment: ZipGrade at 86% against Lizard Evolution Virtual Lab's 24%. ZipGrade also leads on rating (4.9 vs 1.9) and update cadence (every 6 weeks vs every 14 months). Lizard Evolution Virtual Lab's advantage is in-app purchases (none vs 1) and iOS requirement (6.0 vs 13.0). On price and ads 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. ZipGrade sells 1 one-off in-app purchase. Lizard Evolution Virtual Lab asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

ZipGrade holds the better App Store score, 4.9 against 1.9. That said, the two scores are not equally well evidenced: ZipGrade has 36K ratings behind it against 22, so its average is the more settled of the two. Written reviews point the same way: 86% of ZipGrade's written reviews are positive against 24% of Lizard Evolution Virtual Lab's.

UpkeepUpdate frequency

ZipGrade ships an update every 6 weeks, Lizard Evolution Virtual Lab every 14 months. The most recent releases landed on October 13, 2026 and October 7, 2026 respectively.

Scorecard8 real differences · 2 level
ZipGrade versus Lizard Evolution Virtual Lab: the parameters behind the verdict, then further details
ParameterZipGradeLizard Evolution Virtual Lab
PriceFreeFree
Rating4.9 (36K ratings) — better1.9 (22 ratings)
Positive reviews85.7% of reviews — better23.5% of reviews
Number of ratings36K — better22
Update frequencyEvery 6 weeks — betterEvery 14 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod — betteriPad
Requires iOS13.06.0 — better
Further details — not scored
Size30 MB361 MB
Age rating4+4+
DeveloperZipGrade LLCHoward Hughes Medical Institute

Customer experience

ZipGrade

All ratings36,274 ratings
Positive98.3%
Neutral0.9%
Negative0.9%
Written reviews505 reviews
Positive85.7%
Neutral3.2%
Negative11.1%

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

ZipGrade

Reported bugs

2 issues
  • Scanning issues with flat surface detection
  • Incorrect answer marking due to eraser marks

Requested features

4 requests
  • Ability to change question point values in bulk
  • Option to create/edit answer keys on website
  • Support for non-multiple choice question types
  • Improved data export/integration with other systems

Lizard Evolution Virtual Lab

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

ZipGrade

One-time1
  • Add 1 year of use$6.99
None

Lizard Evolution Virtual Lab

No in-app purchases

Questions

Is ZipGrade free?
ZipGrade is free to download, with in-app purchases available.
Is Lizard Evolution Virtual Lab free?
Lizard Evolution Virtual Lab is free to download, with no in-app purchases.
Which has better reviews, ZipGrade or Lizard Evolution Virtual Lab?
ZipGrade is rated higher. ZipGrade averages 4.9 out of 5 from 36K ratings, while Lizard Evolution Virtual Lab averages 1.9 from 22 ratings.
Do ZipGrade or Lizard Evolution Virtual Lab have ads?
Neither ZipGrade nor Lizard Evolution Virtual Lab shows ads.
Which is updated more often, ZipGrade or Lizard Evolution Virtual Lab?
ZipGrade ships an update every 6 weeks, and Lizard Evolution Virtual Lab every 14 months. Most recently, ZipGrade was updated on October 13, 2026 and Lizard Evolution Virtual Lab on October 7, 2026.

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