ZipGrade vs Lizard Evolution Virtual Lab
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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.
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.
- Evolutionary biology modules
- Data collection and analysis
- Phylogenetic analysis
- Reproductive isolation studies
- Speciation concepts
- Educator resources
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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
Verdict
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
Both are free to download. ZipGrade sells 1 one-off in-app purchase. Lizard Evolution Virtual Lab asks for nothing beyond the download.
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.
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.
| Parameter | ZipGrade | Lizard Evolution Virtual Lab |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (36K ratings) — better | 1.9 (22 ratings) |
| Positive reviews | 85.7% of reviews — better | 23.5% of reviews |
| Number of ratings | 36K — better | 22 |
| Update frequency | Every 6 weeks — better | Every 14 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod — better | iPad |
| Requires iOS | 13.0 | 6.0 — better |
| Further details — not scored | ||
| Size | 30 MB | 361 MB |
| Age rating | 4+ | 4+ |
| Developer | ZipGrade LLC | Howard Hughes Medical Institute |
Customer experience
ZipGrade
Lizard Evolution Virtual Lab
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
ZipGrade
- Add 1 year of use$6.99
Lizard Evolution Virtual Lab
No in-app purchases
Questions
Is ZipGrade free?
Is Lizard Evolution Virtual Lab free?
Which has better reviews, ZipGrade or Lizard Evolution Virtual Lab?
Do ZipGrade or Lizard Evolution Virtual Lab have ads?
Which is updated more often, ZipGrade or Lizard Evolution Virtual Lab?
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