Groovy Grader vs Planbook Mobile
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Groovy Grader
This app replaces traditional paper grading calculators with a flexible and convenient digital tool. It offers customizable settings for numerous questions and displays grades in various formats, enhancing classroom efficiency.
- Replaces paper grading calculators
- Configurable for hundreds of questions
- Grade display options (whole number/decimal)
- Shows number correct/wrong
- View multiple grades on screen
- Disable auto-dimming screen
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Do you need some peace, love and happiness in your classroom? If so you need Groovy Grader. Groovy Grader is an App designed to replace your “old school” paper grading calculator. Groovy Grader provides more flexibility, convenience and ease than other popular slide graders. It can be configured to work for 100's of questions and has the option to display the grade as a whole number or with one decimal place. Groovy Grader can show the number correct, the number wrong or both. Groovy Grader was designed with usability as a top priority. Unlike other competing Apps, Groovy Grader can view 50 or more grades on the screen at once. It also allows you to turn off the auto-dimming screen. There's no touching to scroll for the most common grades, or to turn the screen back on. Groovy Grader is optimized for iOS 12 and works great on iPhones, iPods, and iPads.
Planbook Mobile
This is a comprehensive online lesson planning tool designed for educators. It offers a wide array of features, meticulous student learning standards, and excellent support. A free trial is available to experience its capabilities.
- Comprehensive lesson planning
- Meticulous student learning standards
- Extensive features for educators
- Outstanding support and tutorials
- Continuous improvement based on feedback
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Welcome to Planbook! With over one million teachers and one billion lessons, Planbook is the established leader in online lesson planning! Why is Planbook preferred by educators? * We offer the most features for teachers and schools * At $20 per year, we offer the best value on the market * Outstanding support plus knowledge base and tutorials * Our student learning standards are meticulous * Our product is always improving thanks to educator feedback Download and take advantage of our 90 day free trial!
Screenshots
Verdict
Groovy Grader and Planbook Mobile both sit at 4.9 stars, but that hides the real split: 93% of Groovy Grader's written reviews are positive against 51% of Planbook Mobile's. Groovy Grader also leads on monetization model (free with in-app purchases vs subscription) and ratings volume (49K vs 7.6K). On price, rating, update cadence 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. Groovy Grader sells 1 one-off in-app purchase and Planbook Mobile sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.9 for Groovy Grader against 4.8 for Planbook Mobile. That said, the two scores are not equally well evidenced: Groovy Grader has 49K ratings behind it against 7.6K, so its average is the more settled of the two. Written reviews are what separate them: 93% of Groovy Grader's written reviews are positive against 51% of Planbook Mobile's.
Groovy Grader ships an update every 6 weeks, Planbook Mobile every 2 months. Both last shipped on October 27, 2026.
| Parameter | Groovy Grader | Planbook Mobile |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (49K ratings) — better | 4.8 (7.6K ratings) |
| Positive reviews | 92.8% of reviews — better | 50.6% of reviews |
| Number of ratings | 49K — better | 7.6K |
| Update frequency | Every 6 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases — better | Subscription |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 6 MB | 83 MB |
| Age rating | 4+ | 4+ |
| Developer | Dryrain Technologies | Planbook Inc. |
Customer experience
Groovy Grader
Planbook Mobile
User reviews
Groovy Grader
From 49K App Store ratingsWhat we love
- 👍 Easy to use
- 🚀 Quick and efficient
- 💡 Convenient to have on phone
- 👍 Helpful for students to see grades
- 👍 Saves time and effort
Room to improve
- 🔋 Battery drain
- 💡 Needs more customization options (e.g., backgrounds)
Planbook Mobile
From 7.6K App Store ratingsWhat we love
- 🚀 Time-saving program
- 👍 Helpful for both homeschool and school teachers
- 👍 Allows for easy sharing and organization of lessons
- 👍 Useful for adapting to changes like snow days
Room to improve
- 🐛 Events/features not working in app
- 🐛 Google sign-in not working on app
- 🐛 Buggy and unreliable, crashes frequently
- 🐛 Copy/paste feature not working as expected
- 🐛 Inability to access Google Drive files in app
Bugs and requests
Groovy Grader
Reported bugs
2 issues- App drains battery quickly
- Occasional crashes or freezes
Requested features
2 requests- Ability to save and switch between multiple profiles
- Option to show number of correct answers instead of just incorrect
Planbook Mobile
Reported bugs
4 issues- Unable to add school year dates
- Login page issues (keyboard blocking screen)
- Inability to use Gmail account for sign-up
- Lesson plans deleted without explanation
Requested features
3 requests- Add copy and paste feature
- Improve mobile app experience (e.g., biometric login, portrait mode)
- Enhance integration with other platforms (e.g., Canvas)
In-app purchases
Groovy Grader
- Pro Upgrade for 1 Year$4.99
Planbook Mobile
- 1-Year Planbook Subscription$20.00
- 2-Year Planbook Subscription$36.00
- 3-Year Planbook Subscription$48.00
Questions
Is Groovy Grader free?
Is Planbook Mobile free?
Which has better reviews, Groovy Grader or Planbook Mobile?
Do Groovy Grader or Planbook Mobile have ads?
Which is updated more often, Groovy Grader or Planbook Mobile?
Other comparisons
