Comparison

Knowledge Hub Pro 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

Knowledge Hub Pro

Access a wide range of online courses on your mobile device to acquire new skills. Watch course videos offline, engage in discussions, and test your knowledge with quizzes.

Highlights
  • View enrolled courses
  • Discover new courses
  • Download videos for offline viewing
  • Discussion topics
  • Quizzes with answers
Features
Read full description

Knowledge Hub Pro is a free learning app that brings you the best online courses to your mobile devices. You can learn new skills anytime, anywhere. App features : - View enrolled courses - Discover courses - Download courses video for offline viewing - Discussion topics section - Quiz questions and 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

Knowledge Hub Pro4 screens
Grade 9 Math Mastery4 screens

Verdict

The call

The clearest difference is in-app purchases: Knowledge Hub Pro at none against Grade 9 Math Mastery's 2. Knowledge Hub Pro also leads on update cadence (monthly vs every 5 months) and iOS requirement (9.0 vs 17.0). 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. Grade 9 Math Mastery sells 2 in-app purchases, starting at $4.99 per month. Knowledge Hub Pro asks for nothing beyond the download.

UpkeepUpdate frequency

Knowledge Hub Pro ships an update monthly, Grade 9 Math Mastery every 5 months. The most recent releases landed on September 23, 2026 and September 29, 2026 respectively.

Scorecard3 real differences · 6 level
Knowledge Hub Pro versus Grade 9 Math Mastery: the parameters behind the verdict, then further details
ParameterKnowledge Hub ProGrade 9 Math Mastery
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyMonthly — betterEvery 5 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS9.0 — better17.0
Further details — not scored
Size47 MB7 MB
Age rating4+4+
DeveloperMIT iOS APPEager.app

In-app purchases

None

Knowledge Hub Pro

No in-app purchases

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 Knowledge Hub Pro free?
Knowledge Hub Pro is free to download, with no in-app purchases.
Is Grade 9 Math Mastery free?
Grade 9 Math Mastery is free to download, with in-app purchases available.
Do Knowledge Hub Pro or Grade 9 Math Mastery have ads?
Neither Knowledge Hub Pro nor Grade 9 Math Mastery shows ads.
Which is updated more often, Knowledge Hub Pro or Grade 9 Math Mastery?
Knowledge Hub Pro ships an update monthly, and Grade 9 Math Mastery every 5 months. Most recently, Knowledge Hub Pro was updated on September 23, 2026 and Grade 9 Math Mastery on September 29, 2026.

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