Comparison

Main Idea vs Comprehension Toolbox

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

Comprehension Toolbox

This app provides speech therapy exercises for individuals with aphasia and receptive language difficulties. It focuses on improving reading and listening comprehension of single words through interactive picture-matching activities.

Highlights
  • Reading comprehension exercises
  • Listening comprehension exercises
  • Word-to-picture matching
  • Adjustable difficulty levels
  • Customizable field sizes
  • Targeted for aphasia and language difficulties
Features
Read full description

Comprehension Toolbox is a professional speech therapy app. It works on reading and listening comprehension of single words (nouns and verbs). It is designed for people with aphasia and moderate to severe or severe receptive language difficulties following a stroke or brain injury. It is also suitable for older children with special needs including autism. WHAT SPEECH THERAPY ACTIVITIES ARE INCLUDED IN COMPREHENSION TOOLBOX? Comprehension Toolbox has 3 parts. Training: This comprehension activity is particularly helpful for people with aphasia and severe difficulties understanding spoken and written words. It can be done as a listening comprehension activity, a reading comprehension activity or both, depending on the mode chosen in Settings. The person with aphasia is shown two example pictures of the target word. They are then given a choice of 3 pictures and are asked to match the target word to the correct picture. Photo Shuffle: This comprehension activity is spoken and/or written word to picture matching. The person with aphasia is required to match the spoken and/or written words to the pictures in the picture set (field size of 2-6 pictures). Having the pictures in a set gives the person with comprehension difficulties more time to learn and understand the words. They have more time to think and can benefit from a process of elimination when choosing a picture. Word Match: This comprehension activity can be a reading exercise, a listening comprehension exercise or both. The person with aphasia is shown a large picture and a choice of 3 spoken and/or written words. They have to match the picture to the correct word (choice of 3). WHO IS COMPREHENSION TOOLBOX FOR? - Speech language pathologists / Speech language therapists - Adults with moderate to severe or severe receptive aphasia after stroke or brain injury; impaired ability to understand spoken and/or single written words - Adults with cognitive-communication difficulties due to stroke or brain injury - Adults with visual attention difficulties following stroke or brain injury - Children with autism and receptive language difficulties CAN YOU CHANGE THE DIFFICULTY LEVEL OF THE COMPREHENSION THERAPY ACTIVITIES? Comprehension Toolbox has 3 difficulty levels: Easy, Medium and Hard. You can adjust the difficulty level of each comprehension activity in Settings. You can also adjust the field size (2, 3, 4 or 6 pictures on screen) in the Photo Shuffle activity. When a person with aphasia is given a spoken or written word, it is usually harder for them to match it to the correct picture if the options are semantically related or from the same category. The difficulty levels in Comprehension Toolbox are therefore based on whether or not the pictured items are from the same categories or different categories. - Easy Level: The vocabulary items are from different categories - Medium Level: At least one or half of the items are from the same category. The others are from different categories - Hard Level: The vocabulary items are all from the same subcategory FEATURES Comprehension Toolbox allows you to - Select from 3 different modes; listening comprehension therapy, reading comprehension therapy or both - Try two word categories for free and purchase remaining categories in a single in-app purchase - Easily select the categories or sub-categories of words you wish to include in practice or individual words if preferred - Add individual user profiles - Automatically track correct and incorrect scores of each user - Receive audio feedback for correct answers only, incorrect answers only or both - Email a results summary after a session or at a later date - Adjust the difficulty level Comprehension Toolbox has - An easy to use design for people with aphasia and speech language pathologists - Animations in each comprehension activity  - Over 2000 clear, high-quality photos of vocabulary items Download Comprehension Toolbox now for FREE!

Screenshots

Main Idea4 screens
Comprehension Toolbox4 screens

Verdict

The call

The clearest difference is rating: Comprehension Toolbox at 4.8 against Main Idea's 3.8. Comprehension Toolbox also leads on monetization model (free vs free with in-app purchases) and update cadence (every 5 weeks vs every 3 months). On price, ratings volume, 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. Main Idea sells 3 one-off in-app purchases and Comprehension Toolbox sells 9 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Comprehension Toolbox holds the better App Store score, 4.8 against 3.8. Both are backed by a comparable volume of ratings — 19 and 8 respectively.

UpkeepUpdate frequency

Main Idea ships an update every 3 months, Comprehension Toolbox every 5 weeks. The most recent releases landed on September 19, 2026 and September 17, 2026 respectively.

Scorecard4 real differences · 6 level
Main Idea versus Comprehension Toolbox: the parameters behind the verdict, then further details
ParameterMain IdeaComprehension Toolbox
PriceFreeFree
Rating3.8 (19 ratings)4.8 (8 ratings) — better
Positive reviews71.4% of reviews—
Number of ratings19 — better8
Update frequencyEvery 3 monthsEvery 5 weeks — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.210.0 — better
Further details — not scored
Size22 MB327 MB
Age rating4+4+
DeveloperJanine TooleAptus Speech and Language Therapy Limited

Customer experience

Main Idea

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

Comprehension Toolbox

All ratings8 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

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
9 purchases

Comprehension Toolbox

One-time9
  • Transportation & Around Town$0.99
  • Objects$0.99
  • Leisure & Recreation$1.99
Show 6 more
  • Nature & Environment$1.99
  • Food & Drink$2.99
  • Home & Garden$2.99
  • Verbs$2.99
  • People Category$2.99
  • Purchase All Categories$20.99

Questions

Is Main Idea free?
Main Idea is free to download, with in-app purchases available.
Is Comprehension Toolbox free?
Comprehension Toolbox is free to download, with in-app purchases available.
Which has better reviews, Main Idea or Comprehension Toolbox?
Comprehension Toolbox is rated higher. Main Idea averages 3.8 out of 5 from 19 ratings, while Comprehension Toolbox averages 4.8 from 8 ratings.
Do Main Idea or Comprehension Toolbox have ads?
Neither Main Idea nor Comprehension Toolbox shows ads.
Which is updated more often, Main Idea or Comprehension Toolbox?
Main Idea ships an update every 3 months, and Comprehension Toolbox every 5 weeks. Most recently, Main Idea was updated on September 19, 2026 and Comprehension Toolbox on September 17, 2026.

Other comparisons