Comparison

Comprehension Builder. vs 1729 SAT

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

Head to head
About

Comprehension Builder.

This app helps users improve reading comprehension, working memory, and the ability to answer questions about text. It features incremental learning with texts that increase in length and difficulty as skills develop, along with a reward system for motivation. Designed for learners of all ages, including those with special needs or learning English.

Highlights
  • Passage comprehension practice
  • Working memory development
  • Answering multiple-choice questions
  • Incremental learning levels
  • Reward Center for motivation
  • 200+ fiction and non-fiction texts
  • Content designed by teachers
Features
Read full description

** Happy Frog Apps is a Mom’s Choice Award Winner! Also featured on FunEducationalApps.com, TeachersWithApps.com, and more! ** The “Comprehension Builder” app builds skills in passage comprehension, working memory and answering multiple choice questions about a text. What parents say about our awesome apps: *** 5 stars! Brilliant! An app that understands how kids actually learn. Thank you. *** 5 stars! Every one of your apps that I’ve tried is great! When using “Comprehension Builder”, your learner will first read a passage. The learner must then hold the information in memory in order to answer a multiple choice question. To build sustained attention and working memory, early levels contain 2-sentence texts with limited word count. As comprehension is demonstrated and memory increases, the texts increase in length and difficulty. “Comprehension Builder” contains 200+ fiction and non-fiction texts on a variety of topics. This app is perfect for learners who: - when reading or listening, information seems to ‘go in one ear and out the other.’ - have trouble responding to questions about a text unless they can refer back to the text. - can understand each sentence, but don’t seem to put them together to make meaning from the text as a whole. Additional Features: - Incremental learning. New levels are unlocked only when your child demonstrates mastery. - Fun and engaging Reward Center to increase motivation. - Contains over 600 questions, with content designed by professional teachers and researchers. 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! Our apps are also suitable for adults dealing with aphasia or learning English as a Second Language. To evaluate the app, download the free version, which has 2 free levels. The remaining levels accessed with an in-app purchase. If you prefer no in-app purchases, download the School Edition (SE) version of this app, which includes all levels and up to 10 users. 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.  www.HappyFrogApps.com Our apps are safe for kids. We collect NO private information in our app. None! Our apps do not allow unrestricted web or social media access. We conform to the Children's Online Privacy Protection Act.

About

1729 SAT

Read full description

1729 SAT is a complete prep course for the Digital SAT — both Math and Reading & Writing — built around one idea: you learn by working problems, not by watching videos. BOTH SECTIONS, 1,959 PROBLEMS • SAT Math: 1,110 problems across Algebra, Advanced Math, Problem-Solving & Data Analysis, and Geometry & Trigonometry • Reading & Writing: 849 problems across Standard English Conventions, Expression of Ideas, Craft and Structure, and Information and Ideas • 42 units in total, spanning every difficulty the SAT uses — from confidence-builders to the questions that separate top scores PRACTICE THAT WORKS LIKE THE REAL TEST • Interactive problems throughout: multiple choice and grid-ins with a custom keypad, fractions included • Every problem has a hint, a scratch pad, and a full worked solution • Reading passages and questions presented the way the digital test presents them A PLAN BUILT AROUND YOUR TEST DATE Pick your SAT date and each section gives you a week-by-week plan: diagnostic first, then each domain in turn, reviews, and full-length exams spaced through the run. Come back any day and continue where you left off. KNOW WHERE YOU STAND • A timed diagnostic in each section estimates your score on the 200–800 scale and finds your weakest domain • Full-length adaptive practice exams that mirror the real two-module format • Proficiency rings track every domain and skill as you practice, and always point at the skill most worth drilling next LEARN THE TECHNIQUE FIRST Each topic opens with a short lesson: the key definition, a worked example, and the trap the SAT actually sets. Then you practice until it sticks. START FREE A full domain and the diagnostic in each section are free, with no time limit and no card required: the Algebra domain in Math, and Standard English Conventions in Reading & Writing. FULL ACCESS One subscription unlocks both sections in full — every unit, all 1,959 problems, and all full-length practice exams: • Monthly: $5.99/month • Annual: $35.99/year (about $3/month) Subscriptions are billed to your Apple ID and renew automatically until cancelled. Manage or cancel any time in Settings > Subscriptions; cancel at least 24 hours before the period ends to avoid renewal. Privacy Policy: https://1729math.com/privacy Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Support: https://1729math.com/support

Screenshots

Comprehension Builder.4 screens
1729 SAT4 screens

Verdict

The call

The clearest difference is update cadence: 1729 SAT at every 4 weeks against Comprehension Builder.'s every 47 months. Comprehension Builder.'s advantage is iOS requirement (12.2 vs 15.0). On price, ads, in-app purchases 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. Comprehension Builder. sells 3 one-off in-app purchases and 1729 SAT sells 2 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Comprehension Builder. ships an update every 47 months, 1729 SAT every 4 weeks. The most recent releases landed on October 16, 2026 and October 4, 2026 respectively.

Scorecard2 real differences · 8 level
Comprehension Builder. versus 1729 SAT: the parameters behind the verdict, then further details
ParameterComprehension Builder.1729 SAT
PriceFreeFree
Rating2.0 (2 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 47 monthsEvery 4 weeks — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.2 — better15.0
Further details — not scored
Size50 MB9 MB
Age rating4+4+
DeveloperJanine TooleLong Nguyen

In-app purchases

3 purchases

Comprehension Builder.

One-time3
  • Two Users$1.99
  • All Levels$3.99
  • 10 Users$3.99
2 purchases

1729 SAT

Subscriptions2
  • Full Access (Monthly)$5.991 Month
  • Full Access (Annual)$35.991 Year

Questions

Is Comprehension Builder. free?
Comprehension Builder. is free to download, with in-app purchases available.
Is 1729 SAT free?
1729 SAT is free to download, with in-app purchases available.
Do Comprehension Builder. or 1729 SAT have ads?
Neither Comprehension Builder. nor 1729 SAT shows ads.
Which is updated more often, Comprehension Builder. or 1729 SAT?
Comprehension Builder. ships an update every 47 months, and 1729 SAT every 4 weeks. Most recently, Comprehension Builder. was updated on October 16, 2026 and 1729 SAT on October 4, 2026.

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