Comparison

Main Idea vs Sentence Maker App

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

Head to head
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.

About

Sentence Maker App

This educational app guides students through building words from letters and then constructing sentences. It progresses from ordered letters to scrambled ones, incorporating distractors for a comprehensive learning experience. The program features 24 chapters with five core subjects to reinforce word and sentence formation.

Highlights
  • Build words from letters
  • Form sentences from words
  • Scrambled letter exercises
  • Letter distractors
  • 24 learning chapters
  • Five core subjects
Read full description

This program teaches students to make words from letters and then to make sentences from words. The student first sees the letters of a word in their correct order. The student then moves the letters into spaces provided to form the word. The student next sees the letters “scrambled,” i.e. in random disorder. The student then puts the letters in order in the spaces provided to form the word. After that, the student sees scrambled letters with distracters, and must choose correct letter in the correct order to make the word. This program contains 24 chapters. Subject This program uses five items to teach words and sentence formation. These are Boy, Girl, Ball, Cup, and Dog. Click on the subject to use in the “Sentence Maker” program. Introduction This program always begins with the Introduction Screen. The Introduction Screen shows the subject(s) (Boy, Girl, Ball, Cup, or Dog) that will be used in the chapter and indicates what activity will be followed in this chapter.

Screenshots

Main Idea4 screens

Verdict

The call

The clearest difference is review sentiment: Main Idea at 71% against Sentence Maker App's 0%. Main Idea also leads on update cadence (every 3 months vs every 114 months) and device support (3 vs 1). On price, ads, in-app purchases and monetization model 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 and Sentence Maker App sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Main Idea ships an update every 3 months, Sentence Maker App every 114 months. The most recent releases landed on October 17, 2026 and October 3, 2026 respectively.

Scorecard4 real differences · 6 level
Main Idea versus Sentence Maker App: the parameters behind the verdict, then further details
ParameterMain IdeaSentence Maker App
PriceFreeFree
Rating3.8 (19 ratings) — better—
Positive reviews71.4% of reviews — better0.0% of reviews
Number of ratings19 — better—
Update frequencyEvery 3 months — betterEvery 114 months
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPad
Requires iOS12.2 — better15.6
Further details — not scored
Size22 MB100 MB
Age rating4+4+
DeveloperJanine TooleBlooming Kids Software LLC

Customer experience

Main Idea

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

Sentence Maker App

Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

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
1 purchases

Sentence Maker App

One-time1
  • Sentence Maker$9.99

Questions

Is Main Idea free?
Main Idea is free to download, with in-app purchases available.
Is Sentence Maker App free?
Sentence Maker App is free to download, with in-app purchases available.
Do Main Idea or Sentence Maker App have ads?
Neither Main Idea nor Sentence Maker App shows ads.
Which is updated more often, Main Idea or Sentence Maker App?
Main Idea ships an update every 3 months, and Sentence Maker App every 114 months. Most recently, Main Idea was updated on October 17, 2026 and Sentence Maker App on October 3, 2026.

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