Comparison

Quick Key Mobile Grading App vs Grader+

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

Head to head
About

Quick Key Mobile Grading App

Easily grade paper quizzes and digital assessments using a mobile device. Supports both paper and paperless classrooms, offering automatic reporting and seamless integration with popular learning management systems. Secure and compliant with student privacy regulations.

Highlights
  • Grade paper quizzes with phone camera
  • Send digital quizzes to student devices
  • Works offline
  • Integrates with Google Classroom
  • Exports to electronic gradebooks
  • Automatic reporting
  • Free bubble sheets
Features
Read full description

Created by a 15-year veteran teacher and launched by 250 teachers on Kickstarter. Quick Key’s mobile grading app easily grades paper quizzes and assessments with just one device, anywhere, even without any network connection at all. Paperless classroom? With Quick Key you can send a quiz to your students’ Chromebooks, laptops, or mobile devices (BYOD). Pencil and Paper Classroom? You can grade 100 paper tests in less than 5 minutes, using nothing but the camera on your iPhone or iPad, and our scantron-style bubble sheets are 100% free! Quick Key is the only mobile grading solution that is secure enough for districts, affordable enough for schools, and easy enough for everyday classroom use. Are you the leader of a 1:1 school, or a district in transition to 1:1? Quick Key effortlessly combines results from 1:1 classrooms and paper classrooms. And it provides automatic top-level reporting of key data, so you can focus on student growth, not managing your data. Quick Key was originally built for teachers doing ungraded assessment for learning and frequent formative assessment in the classroom, using nothing but their iPhone or iPad. But even if you don’t use daily exit tickets, Quick Key is perfect for quizzes, unit tests, district wide benchmark assessments, midterms and finals. It completely replaces the need for a scantron machine. Best of all, you never have to worry about getting your grades in at the last minute: Quick Key syncs with Google Classroom, exports data into any electronic gradebook , and sends grades directly into PowerSchool with one click. All your Quick Key data is secure, and we actively follow FERPA and COPPA best practice. *********************** Let’s talk teaching! *********************** During my 15 years in the classroom, I saw first-hand how my students excelled when I made formative assessments for learning part of my lessons. Now I am dedicated to empowering teachers to be creative and student-focused in a world increasingly driven by data. I would love to personally connect with you! Follow @4_teachers on Twitter to say hello and talk teaching and learning. You TEACH BIG™, we get your back! *********************** UPDATES *********************** This Release: easier than ever No more jumping around back and forth between screens. Everything you need to do is now intuitive and obvious. Now you don't have to create a course to give a quiz. Just make your quick answer key and scan. All your data syncs even faster. And sending a lot of data is no problem now. The last release: New bubble sheet designs that scan faster and stand up to photocopying, low-ink printers, and even more scribbles, erase marks, etc. New 10, 30, and 60-question Scantron-style bubble sheets. ================ Tell us what you think! ================ If you have enjoyed Quick Key please rate us on app store. You SPEAK we LISTEN, ALL updates are based on your FEEDBACK.

About

Grader+

This app helps educators quickly grade assignments and tests. It allows for automatic percentage calculation, sorting of results, and statistical displays. Scores can be archived and exported for easy record-keeping.

Highlights
  • Automatic percentage calculation
  • Sort results by name or score
  • Display score statistics
  • Archive scores
  • Export results to CSV
  • Dark mode support
Features
Read full description

Other features include: * Enter the maximum score on the test to automatically calculate percentages * Sort results by name or by score * Display statistics for scores * Archive scores for reference * Export results to a CSV file for easy importing to a spreadsheet * Dark mode

Screenshots

Quick Key Mobile Grading App1 screens
Grader+3 screens

Verdict

The call

The clearest difference is rating: Grader+ at 5.0 against Quick Key Mobile Grading App's 4.5. Quick Key Mobile Grading App's advantage is ratings volume (226 vs 2) and update cadence (every 3 weeks vs every 2 months). 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

Grader+ holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Quick Key Mobile Grading App has 226 ratings behind it against 2, so its average is the more settled of the two.

UpkeepUpdate frequency

Quick Key Mobile Grading App ships an update every 3 weeks, Grader+ every 2 months. The most recent releases landed on October 6, 2026 and October 4, 2026 respectively.

Scorecard4 real differences · 6 level
Quick Key Mobile Grading App versus Grader+: the parameters behind the verdict, then further details
ParameterQuick Key Mobile Grading AppGrader+
PriceFreeFree
Rating4.5 (226 ratings)5.0 (2 ratings) — better
Positive reviews74.5% of reviews—
Number of ratings226 — better2
Update frequencyEvery 3 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPod — betteriPhone
Requires iOS8.0 — better17.0
Further details — not scored
Size30 MB1 MB
Age rating4+4+
DeveloperThirty Seven Inc.Peter Davison-Reiber

Customer experience

Quick Key Mobile Grading App

All ratings226 ratings
Positive87.6%
Neutral4.9%
Negative7.5%
Written reviews94 reviews
Positive74.5%
Neutral7.4%
Negative18.1%

Grader+

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Quick Key Mobile Grading App

Reported bugs

9 issues
  • App crashes intermittently during use
  • Scanner does not recognize properly filled bubbles
  • Login and account creation failures
  • Syncing delays between mobile app and web platform
  • App force-closes on iPad Air and older devices
Show 4 more
  • Scanner hangs without providing feedback
  • Scanning fails despite green indicator lights
  • Blank scan results for properly filled sheets
  • Compatibility issues with iOS 8 and newer versions

Requested features

11 requests
  • Support for more than 30 questions per quiz
  • Native iPad app (not stretched iPhone version)
  • Ability to use district-provided scantron sheets
  • Gridded/numerical response question support
  • Itemized answer choice reporting (A/B/C/D breakdown)
Show 6 more
  • Support for multiple correct answers per question
  • Custom student numbering system for younger grades
  • Integration with PowerTeacher and other SIS platforms
  • Better scanner feedback and error messages
  • Higher monthly scan limits for larger classes
  • Edit capability for already-scanned tests

Grader+

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Quick Key Mobile Grading App

No in-app purchases

None

Grader+

No in-app purchases

Questions

Is Quick Key Mobile Grading App free?
Quick Key Mobile Grading App is free to download, with no in-app purchases.
Is Grader+ free?
Grader+ is free to download, with no in-app purchases.
Which has better reviews, Quick Key Mobile Grading App or Grader+?
Grader+ is rated higher. Quick Key Mobile Grading App averages 4.5 out of 5 from 226 ratings, while Grader+ averages 5.0 from 2 ratings.
Do Quick Key Mobile Grading App or Grader+ have ads?
Neither Quick Key Mobile Grading App nor Grader+ shows ads.
Which is updated more often, Quick Key Mobile Grading App or Grader+?
Quick Key Mobile Grading App ships an update every 3 weeks, and Grader+ every 2 months. Most recently, Quick Key Mobile Grading App was updated on October 6, 2026 and Grader+ on October 4, 2026.

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