Comparison

Grade Grid vs Frizzle

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

Head to head
About

Grade Grid

This tool helps educators create customizable grade grids for assignments. It automatically calculates percentages and letter grades based on configurable grading scales. Teachers can easily manage student evaluations for any number of questions.

Highlights
  • Customizable grade grids
  • Automatic percentage calculation
  • Configurable letter grade ranges
  • Supports any number of questions
  • Easy student evaluation management
Features
Read full description

Grade Grid is a tool for teachers to easily evaluate students' grades. You can make grade grids for any number of questions and you will see all percentages and letter grades for that assignment. The grade lettering is configurable to any sets of ranges desired, or can be turned off altogether.

About

Frizzle

This AI-powered app automates the grading of handwritten student work from photos. It provides instant grades, written feedback, and skill mastery data, saving educators valuable time. Compatible with existing worksheets, it streamlines the assessment process for K-12 and college teachers.

Highlights
  • Grades handwritten work from photos
  • Provides written feedback or point scores
  • Offers skill-level mastery data
  • Auto-sorts mixed stacks by student name
  • Works with existing worksheets
Read full description

Spend less time grading. Spend more time teaching. Frizzle is the only AI grading app that reads handwritten student work directly from a photo. No bubble sheets. No typing. No scanner. Just snap the stack and walk away. WHAT YOU GET BACK • Grades for every student in under 180 seconds • Written feedback or point scores, your choice • Skill-level mastery data so you know who needs a re-teach • Same-day insights, no extra tests, no extra screen time for kids HOW FRIZZLE IS DIFFERENT • Reads real handwriting, not just typed work or bubble sheets • 97% accuracy with confidence flagging, you review what we're unsure about • Auto-sorts mixed stacks by student name, no alphabetizing required • Works with any worksheet you already use, no new curriculum to adopt WHO USES FRIZZLE Teachers in K-12 and college classrooms across the U.S., from independent schools to charter networks to public districts. Built by a team that previously ran the Midwest Math Circle, Chicagoland's largest, and backed by Y Combinator and the White House AI Education Partnership. Free to try. No credit card. Set up your first class in two minutes.

Screenshots

Grade Grid3 screens
Frizzle4 screens

Verdict

The call

The clearest difference is rating: Frizzle at 5.0 against Grade Grid's 4.3. Frizzle also leads on in-app purchases (none vs 1) and ads (none vs shown). Grade Grid's advantage is ratings volume (25 vs 1) and iOS requirement (13.6 vs 26.2). On price 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. Grade Grid sells 1 one-off in-app purchase. Frizzle asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Frizzle holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: Grade Grid has 25 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Grade Grid ships an update every 13 months, Frizzle every 3 weeks. The most recent releases landed on October 24, 2026 and October 17, 2026 respectively.

Scorecard7 real differences · 3 level
Grade Grid versus Frizzle: the parameters behind the verdict, then further details
ParameterGrade GridFrizzle
PriceFreeFree
Rating4.3 (25 ratings)5.0 (1 ratings) — better
Positive reviews60.0% of reviews—
Number of ratings25 — better1
Update frequencyEvery 13 monthsEvery 3 weeks — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.6 — better26.2
Further details — not scored
Size9 MB6 MB
Age rating4+4+
DeveloperPeter RyszkiewiczFrizzle, Inc

Customer experience

Grade Grid

All ratings22 ratings
Positive81.8%
Neutral4.5%
Negative13.6%
Written reviews5 reviews
Positive60.0%
Neutral0.0%
Negative40.0%

Frizzle

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

Grade Grid

One-time1
  • Grade Grid Pro$0.99
None

Frizzle

No in-app purchases

Questions

Is Grade Grid free?
Grade Grid is free to download, with in-app purchases available.
Is Frizzle free?
Frizzle is free to download, with no in-app purchases.
Which has better reviews, Grade Grid or Frizzle?
Frizzle is rated higher. Grade Grid averages 4.3 out of 5 from 25 ratings, while Frizzle averages 5.0 from 1 ratings.
Do Grade Grid or Frizzle have ads?
Grade Grid shows ads; Frizzle does not.
Which is updated more often, Grade Grid or Frizzle?
Grade Grid ships an update every 13 months, and Frizzle every 3 weeks. Most recently, Grade Grid was updated on October 24, 2026 and Frizzle on October 17, 2026.

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