Comparison

Ratio Rumble vs Main Idea

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

Head to head
About

Ratio Rumble

Engage in a potion-mixing competition by creating specific ratios to win. This game supports learning about equivalent ratios, rates, fractions, and decimals through contextual situations and visual representations.

Highlights
  • Build custom potions
  • Create ratios to win
  • Learn equivalent ratios
  • Visual ratio representations
  • Connect ratios to fractions/decimals
  • Developed by educators
Features
Read full description

The battle is on in this game where you build your own potions! Create ratios to win this mixture mix-off! Ratio Rumble supports mathematical learning about equivalent ratios, and is relevant to Common Core topics such as: •Identifying ratios when used in a variety contextual situations •Providing visual representations of ratios •Solving common problems or communicating by using rate •Explaining why ratios and rates naturally relate to fractions and decimals. This app was developed as part of the Math Snacks initiative. Additional games, animations, and teacher support materials are available at http://mathsnacks.org. Developed by mathematics educators, researchers and game developers at the Learning Games Lab at New Mexico State University. Games developed by the Learning Games Lab undergo a rigorous instructional design process, extensive user testing, and input from learners, teachers, and researchers. For more information about the NMSU Learning Games Lab, visit http://learninggameslab.org. Math Snack materials were developed with support from the National Science Foundation (0918794). Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation. Some materials were originally prototyped or discussed as part of a cooperative agreement from the U.S. Department of Education (U295A050004).

About

Main Idea

This app helps children in grades 2-5 develop reading comprehension skills by focusing on identifying the main idea of sentences. It uses a fun, game-like approach with step-by-step learning and rewards to keep kids motivated. Designed by educators, it's suitable for both typical and special needs children.

Highlights
  • Step-by-step skill building
  • Game-like environment
  • Frustration-free learning
  • Reward Center for motivation
  • Parental review and reporting
  • Over 600 examples
  • Designed by teachers and researchers
Features
Read full description

** Featured on Appolicious.com & iHeartThisApp.com ** 'Main Idea -Sentences' helps kids who have trouble with reading comprehension. Identifying the main idea is a key part of reading comprehension. 'Main Idea -Sentences' builds this comprehension skill in a fun, game-like environment. The skill is developed step-by-step until mastery. *** Happy Frog Apps is a Mom's Choice Award winner! *** ***** 5 Stars - Thank you for this app! Other software I’ve used has moved too quickly for my son. This one worked! Can’t wait for the next Main Idea app…it’s coming, right? ***** 5 Stars - This app is one the best education apps I have used with my little one. It really helps to improve his reading abilities. He is obsessed with passing the levels and it never let him disappointed. One of the few apps that worth to upgrade to premium version. 'Main Idea - Sentences' is designed for children in Grades 2-5 who can read the words, but don't understand what they read. Beginning readers in earlier grades can also benefit from the targeted skill development. 'Main Idea - Sentences' develops the skill of knowing what a sentence is about. This skill must be firmly established before a child can determine what a paragraph or page is about. Key Benefits: - Builds comprehension skills step-by-step until mastery. - Incremental learning. New levels are unlocked only when your child is ready. - Frustration-free learning. Your child will always be guided to the correct answer. - Fun and engaging Reward Center to increase motivation. - Easy parental review. Just check out the stars to see how your child is doing. - Contains over 600 examples, with content designed by professional teachers and researchers. - Advanced levels include timers to ensure fluency. Research shows fluency in the foundation skills is critical to reading comprehension. - Can be used independently (just hand it over: your child will know what to do!) or with a therapist/parent for reading intervention. - Provides extensive reporting for up to 10 students to suit the needs of parents, teachers and therapists. Our apps are designed for and tested by typical and special needs children. Testers include children with Autism and other special needs. Our apps work for them! To evaluate the app, download the free version, which has 4 free levels. Additional levels and additional players can be accessed with in-app purchase. If you prefer no in-app purchases, download the School Edition of this app. While you're thinking about reading, check out our other apps that target WH questions, inferencing and answer identification skills. Learn more about reading comprehension and research at our website www.HappyFrogApps.com. Drop us a note, we'd love to hear from you! We take customer service very seriously! If you ever have a problem or find that we've missed something, contact us at our website and we will do our best to fix the problem. We are a member of the Moms With Apps program that promotes privacy in children's apps. We collect NO private information in our apps and our apps do not allow unrestricted web access.

Screenshots

Main Idea4 screens

Verdict

The call

The clearest difference is in-app purchases: Ratio Rumble at none against Main Idea's 3. Ratio Rumble also leads on review sentiment (91% vs 71%) and iOS requirement (5.1.1 vs 12.2). Main Idea's advantage is rating (3.7 vs 3.4) and update cadence (every 3 months vs every 8 months). On price, ratings volume 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Main Idea sells 3 one-off in-app purchases. Ratio Rumble asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Main Idea holds the better App Store score, 3.7 against 3.4. Both are backed by a comparable volume of ratings — 7 and 18 respectively. Written reviews complicate that: 91% of Ratio Rumble's written reviews are positive against 71% of Main Idea's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Ratio Rumble ships an update every 8 months, Main Idea every 3 months. The most recent releases landed on November 1, 2026 and November 8, 2026 respectively.

Scorecard7 real differences · 3 level
Ratio Rumble versus Main Idea: the parameters behind the verdict, then further details
ParameterRatio RumbleMain Idea
PriceFreeFree
Rating3.4 (7 ratings)3.7 (18 ratings) — better
Positive reviews90.9% of reviews — better71.4% of reviews
Number of ratings718 — better
Update frequencyEvery 8 monthsEvery 3 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPadiPhone, iPad, iPod — better
Requires iOS5.1.1 — better12.2
Further details — not scored
Size45 MB22 MB
Age rating4+4+
DeveloperLearning Games Lab, NM State UniversityJanine Toole

Customer experience

Ratio Rumble

All ratings7 ratings
Positive57.1%
Neutral14.3%
Negative28.6%
Written reviews11 reviews
Positive90.9%
Neutral9.1%
Negative0.0%

Main Idea

All ratings19 ratings
Positive63.2%
Neutral15.8%
Negative21.1%
Written reviews14 reviews
Positive71.4%
Neutral14.3%
Negative14.3%

In-app purchases

None

Ratio Rumble

No in-app purchases

3 purchases

Main Idea

One-time3
  • Upgrade to 2 Users$1.99
  • Access All Levels$2.99
  • Up to 10 Users$2.99

Questions

Is Ratio Rumble free?
Ratio Rumble is free to download, with no in-app purchases.
Is Main Idea free?
Main Idea is free to download, with in-app purchases available.
Which has better reviews, Ratio Rumble or Main Idea?
Main Idea is rated higher. Ratio Rumble averages 3.4 out of 5 from 7 ratings, while Main Idea averages 3.7 from 18 ratings.
Do Ratio Rumble or Main Idea have ads?
Neither Ratio Rumble nor Main Idea shows ads.
Which is updated more often, Ratio Rumble or Main Idea?
Ratio Rumble ships an update every 8 months, and Main Idea every 3 months. Most recently, Ratio Rumble was updated on November 1, 2026 and Main Idea on November 8, 2026.

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