Comparison

ZipGrade vs Promethean

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

Promethean

This app facilitates classroom collaboration by allowing students and teachers to interact with interactive panels wirelessly. IT administrators can also manage panel enrollment and updates. It offers screen sharing and access to training resources.

Highlights
  • Wireless screen sharing
  • Panel management for IT admins
  • Access to training materials
  • Student-teacher interaction
  • Panel enrollment and naming
Features
Read full description

Put classroom collaboration into the hands of students and teachers and panel management into the hands of school IT administrators. The Promethean mobile app is designed for teachers and students to interact with Promethean ActivPanels from anywhere in the classroom. Teachers have the ability to sign in and access their Promethean profile. For IT administrators, the Promethean mobile app helps to enroll ActivPanels into their panel management to make updates easier. Students can • Wirelessly share the screen from their mobile device to ActivPanels with Screen Share or Screen Share in Promethean ActivSuite. • No sign-in required. Teachers can • Wirelessly share the screen from their mobile device to ActivPanels with Screen Share or Screen Share in Promethean ActivSuite. • Access Promethean user tutorials and training materials on Learn Promethean directly through the app.* • Sign in to their Promethean account to access Promethean ActivSuite and sign in to their ActivPanel 9. IT Administrators can • Sign in to their Promethean account. • Wirelessly share the screen from their mobile device to ActivPanels with Screen Share or Screen Share in Promethean ActivSuite. • Access Promethean user tutorials and training materials on Learn Promethean directly through the app* • Enroll ActivPanels into a school organization, name the panel, associate it with groups and verify that it was enrolled successfully. NOTES: • The Promethean app requires a device where a Promethean account can be accessed or Promethean ActivPanel Elements (Nickel, Cobalt, Titanium) series panels with Software Release (SR) 3.2 or newer. • Panel sign in is only available for ActivPanel 9 series. • Screen Share must be enabled on ActivPanel to utilize Screen Share from the Promethean app. * Dependent upon language"

Screenshots

ZipGrade3 screens
Promethean4 screens

Verdict

The call

The clearest difference is review sentiment: ZipGrade at 86% against Promethean's 18%. ZipGrade also leads on rating (4.9 vs 2.5) and ratings volume (36K vs 59). Promethean's advantage is in-app purchases (none vs 1). On price, 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. ZipGrade sells 1 one-off in-app purchase. Promethean asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

ZipGrade holds the better App Store score, 4.9 against 2.5. That said, the two scores are not equally well evidenced: ZipGrade has 36K ratings behind it against 59, 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 18% of Promethean's.

UpkeepUpdate frequency

ZipGrade ships an update every 6 weeks, Promethean every 4 months. The most recent releases landed on September 24, 2026 and August 19, 2026 respectively.

Scorecard7 real differences · 3 level
ZipGrade versus Promethean: the parameters behind the verdict, then further details
ParameterZipGradePromethean
PriceFreeFree
Rating4.9 (36K ratings) — better2.5 (59 ratings)
Positive reviews85.7% of reviews — better17.6% of reviews
Number of ratings36K — better59
Update frequencyEvery 6 weeks — betterEvery 4 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15.0
Further details — not scored
Size30 MB66 MB
Age rating4+4+
DeveloperZipGrade LLCPromethean

Customer experience

ZipGrade

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

Promethean

All ratings59 ratings
Positive33.9%
Neutral8.5%
Negative57.6%
Written reviews34 reviews
Positive17.6%
Neutral2.9%
Negative79.4%

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

Promethean

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

Promethean

No in-app purchases

Questions

Is ZipGrade free?
ZipGrade is free to download, with in-app purchases available.
Is Promethean free?
Promethean is free to download, with no in-app purchases.
Which has better reviews, ZipGrade or Promethean?
ZipGrade is rated higher. ZipGrade averages 4.9 out of 5 from 36K ratings, while Promethean averages 2.5 from 59 ratings.
Do ZipGrade or Promethean have ads?
Neither ZipGrade nor Promethean shows ads.
Which is updated more often, ZipGrade or Promethean?
ZipGrade ships an update every 6 weeks, and Promethean every 4 months. Most recently, ZipGrade was updated on September 24, 2026 and Promethean on August 19, 2026.

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