Comparison

Grade 9 Math & Science vs Isosceles Triangle

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

Head to head
About

Grade 9 Math & Science

Features
Read full description

Grade 9 Math & Science: Fun, Interactive Learning for Kids! Help your child succeed in Grade 9 with this comprehensive quiz app covering both Math and Science. Designed for young learners, this app makes mastering key concepts enjoyable and effectiveβ€”at home, in class, or on the go. Key Features: Topic-Wise Quizzes: Practice math and science one topic at a time, helping children build confidence and master each subject area. Instant Feedback: Kids receive immediate feedback after every question, reinforcing learning and encouraging improvement. Progress Tracking: The Progress tab records scores and displays improvement over time, motivating kids to keep practicing. Pie chart makes it easy to see progress and achievements at a glance. Score Reset: Easily delete a topic’s score to retake quizzes and improve results. Offline Mode: Download topics and questions once, then enjoy full access to quizzes and features offlineβ€”no internet required! Child-Friendly Design: Simple, intuitive interface created for young learners, with no ads or unnecessary distractions. Why Choose Grade 9 Math & Science? Covers essential Grade 9 math and science topics, aligned with school curriculums. Perfect for daily practice, homework help, or classroom use. Safe, private, and distraction-free. How Offline Mode Works: After the first download of topics and questions, your child can use the app anywhereβ€”even without an internet connection. Make learning a daily adventure! Download Grade 9 Math & Science now and give your child the tools to excel in math and science.

About

Isosceles Triangle

Features
Read full description

Finish homework instantly. Prepare for exams stress-free. Free, complete step-by-step solutions. Enter your values and calculate legs, base, height, angles, perimeter, and area. HOW IT WORKS Enter your values into the correct fields and get started. You’ll receive the solution instantly and can share it with friends or classmates. YOUR PERSONAL DATA We don’t need it. Only anonymized data is collected, for example: - which features are used - how many solutions are generated This helps us improve. No conclusions can be drawn about you. COSTS Everything is free to use. 24/7 access to your solutions. All solution steps remain fully available at all times. If you need many solutions in a short time, various purchase options are available. EXTRAS - overview of all quantities - acute and obtuse triangles - all length units - curated learning videos - feedback on incorrect inputs - manage your own solutions - app introduction CONTACT Questions and feedback via Discord or directly in the app review.

Screenshots

Grade 9 Math & Science4 screens
Isosceles Triangle4 screens

Verdict

The call

The clearest difference is price: Isosceles Triangle at Free against Grade 9 Math & Science's $1.99. Isosceles Triangle also leads on update cadence (every 3 weeks vs every 36 months) and iOS requirement (15.0 vs 18.2). Grade 9 Math & Science's advantage is in-app purchases (none vs 8). On ads and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Isosceles Triangle is free to download; Grade 9 Math & Science costs $1.99 up front. Isosceles Triangle sells 8 one-off in-app purchases. Grade 9 Math & Science asks for nothing beyond the download.

UpkeepUpdate frequency

Grade 9 Math & Science ships an update every 36 months, Isosceles Triangle every 3 weeks. The most recent releases landed on October 8, 2026 and October 24, 2026 respectively.

Scorecard4 real differences Β· 2 level
Grade 9 Math & Science versus Isosceles Triangle: the parameters behind the verdict, then further details
ParameterGrade 9 Math & ScienceIsosceles Triangle
Price$1.99Free β€” better
Update frequencyEvery 36 monthsEvery 3 weeks β€” better
AdsNoNo
In-app purchasesNo β€” betterYes
DevicesiPhone, iPadiPhone, iPad, iPod β€” better
Requires iOS18.215.0 β€” better
Further details β€” not scored
Size2 MB180 MB
Age rating4+4+
DeveloperPrachi PimpalkhareGlindemann, Sennoun, Langer GbR

In-app purchases

None

Grade 9 Math & Science

No in-app purchases

8 purchases

Isosceles Triangle

One-time8
  • +30 User Tokens$0.29
  • +1 Convenience Token / 6h, max. +2$0.59
  • +150 User Tokens$0.99
Show 5 more
  • +2 Convenience Tokens / 6h, max. +4$0.99
  • +300 User Tokens$1.49
  • +4 Convenience Tokens / 6h, max. +8$1.59
  • Remove Ads$2.99
  • Lifetime Access$2.99

Questions

Is Grade 9 Math & Science free?
Grade 9 Math & Science costs $1.99, with no in-app purchases.
Is Isosceles Triangle free?
Isosceles Triangle is free to download, with in-app purchases available.
Do Grade 9 Math & Science or Isosceles Triangle have ads?
Neither Grade 9 Math & Science nor Isosceles Triangle shows ads.
Which is updated more often, Grade 9 Math & Science or Isosceles Triangle?
Grade 9 Math & Science ships an update every 36 months, and Isosceles Triangle every 3 weeks. Most recently, Grade 9 Math & Science was updated on October 8, 2026 and Isosceles Triangle on October 24, 2026.

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