Comparison

9th Grade Math Challenge vs Grade 9 Math Mastery

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

Head to head
About

9th Grade Math Challenge

Test your 9th-grade math skills with a challenging game featuring 100 levels and puzzles. Track your progress, share your score with a certificate, and compete with friends. Detailed solutions are provided for better understanding.

Highlights
  • 100 math questions/levels
  • Math puzzles
  • Score certificate creation
  • Friend challenges
  • Step-by-step solutions
Features
Read full description

Challenge your mind with 9th grade level Math and see where you stand. There are 100 questions/levels sprinkled with some interesting Math puzzles in between. Create and share a certificate of your final score. Challenge your friends and family to see who can score the most. Watch step-by-step solution for better understanding of answers.

About

Grade 9 Math Mastery

Features
Read full description

Grade 9 Math Mastery prepares Ontario students for the province-wide Grade 9 mathematics assessment. It teaches each concept first, then gives 400 practice questions to prove it stuck. Most study apps only test. This one teaches. Learn the concept • 25 guided lessons, one for every topic on the course • Worked examples that reveal one step at a time, so students can attempt the next line before seeing it • Each lesson names the mistakes students actually make, and why they happen • A short check at the end confirms the idea landed Practise until it sticks • 400 questions across all five strands: Number, Algebra, Data, Geometry and Measurement, and Financial Literacy • Difficulty adapts to the student and moves up as they improve • Wrong answers come back automatically on a spaced repetition schedule, timed for just before they would be forgotten • A mistake journal collects everything missed, with step-by-step solutions • A 57-formula reference sheet, plus a quiz mode for memorising it Practise under real conditions • Mini and full mock tests, timed • A full exam simulation: 25 questions, 75 minutes, no hints, with a complete review afterwards • An estimated achievement level after every attempt Keep them coming back • Speed Drill, Survival, Race Mode, and a two-player duel on one device • A new challenge question every day • Streaks, daily goals and 21 achievements See exactly where they stand • Mastery across all 25 topics at a glance • A predicted achievement level, and the specific topics holding it back • Weekly progress reports and an exam-readiness checklist • A parent view, plus a progress summary you can share or email For parents Everything is built around one question: what should they work on next? The app answers it on every screen, names the topics that need attention, and links straight to the lesson that teaches them. You do not need to remember Grade 9 math to help. Free and Premium Algebra is free, with 15 practice questions a day and one mini mock test. Premium unlocks all five strands, every guided lesson, unlimited daily practice, full mock exams and the exam simulation, and parent reports. Works on iPhone and iPad. Premium starts with a 7-day free trial. Cancel any time. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Payment is charged to your Apple Account. Manage or cancel in your Apple Account settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Terms of Service: https://eager.app/terms Privacy Policy: https://eager.app/privacy

Screenshots

9th Grade Math Challenge4 screens
Grade 9 Math Mastery4 screens

Verdict

The call

The clearest difference is iOS requirement: 9th Grade Math Challenge at 13.0 against Grade 9 Math Mastery's 17.0. On price, update cadence, ads and in-app purchases 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. 9th Grade Math Challenge sells 1 one-off in-app purchase and Grade 9 Math Mastery sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

9th Grade Math Challenge ships an update every 7 months, Grade 9 Math Mastery every 5 months. The most recent releases landed on September 27, 2026 and September 29, 2026 respectively.

Scorecard1 real difference · 9 level
9th Grade Math Challenge versus Grade 9 Math Mastery: the parameters behind the verdict, then further details
Parameter9th Grade Math ChallengeGrade 9 Math Mastery
PriceFreeFree
Rating3.8 (12 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings12 — better—
Update frequencyEvery 7 monthsEvery 5 months — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better17.0
Further details — not scored
Size28 MB7 MB
Age rating4+4+
DeveloperIT365 Solutions IncEager.app

In-app purchases

1 purchases

9th Grade Math Challenge

One-time1
  • Remove all Ads from Math 9$0.99
2 purchases

Grade 9 Math Mastery

Subscriptions2
  • Grade 9 Math Mastery — Monthly$4.991 Month
  • Grade 9 Math Mastery — Annual$29.991 Year

Questions

Is 9th Grade Math Challenge free?
9th Grade Math Challenge is free to download, with in-app purchases available.
Is Grade 9 Math Mastery free?
Grade 9 Math Mastery is free to download, with in-app purchases available.
Do 9th Grade Math Challenge or Grade 9 Math Mastery have ads?
Neither 9th Grade Math Challenge nor Grade 9 Math Mastery shows ads.
Which is updated more often, 9th Grade Math Challenge or Grade 9 Math Mastery?
9th Grade Math Challenge ships an update every 7 months, and Grade 9 Math Mastery every 5 months. Most recently, 9th Grade Math Challenge was updated on September 27, 2026 and Grade 9 Math Mastery on September 29, 2026.

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