Comparison

Think Math vs 읽어줘

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

Head to head
About

Think Math

Explore math concepts from elementary to high school on a comprehensive map. Easily find specific topics with a three-step navigation system and reinforce learning with linked YouTube videos and textbook-quality typesetting. Ideal for students, parents, and teachers seeking a visual understanding of mathematical connections.

Highlights
  • 802 math concepts map
  • Three-step navigation
  • Textbook-quality typesetting
  • Linked YouTube concept videos
  • Grade-level explanations
  • Concept cards with basic/advanced views
  • Listen and learn audio feature
Features
Read full description

Think Math is a concept explorer that lays out every math concept from elementary through high school on a single map. 802 concepts cover the whole curriculum, from counting to calculus. Narrow things down in three steps - area, unit, concept - to find what you need fast. Fractions, roots, exponents and sigma notation are typeset properly, just like a textbook. Concepts are linked to short YouTube concept videos, so you can read an idea and then watch it. KEY FEATURES * 802 concepts across elementary, middle and high school * Three-step navigation: area > unit > concept * Textbook-quality math typesetting (fractions, roots, exponents, sigma) * 700+ English concept videos, linked concept by concept (more added over time) * Explanations and examples written at each grade's level * Concept cards with Basic and Advanced views * Listen and learn: hear any concept read aloud * Wrong-Answer Notes (save photos, handwriting and formulas) * Summit hall - enrichment math beyond the curriculum * Study streaks and daily reminders * In English and Korean - switch any time from the home screen * Layouts for iPhone and iPad (iPad works in portrait and landscape) GREAT FOR * Students who want to see how units connect in the big picture * Test-takers who want a fast concept review * Parents who want to see how math builds grade by grade * Teachers who need a concept map for class * Math lovers who enjoy thinking through proofs and formulas PRIVACY AND USE * No sign-up needed - just open and start. * All study data stays on your device and is never sent to a server. * Ads are shown to keep the app free (Google AdMob). An optional one-time Pro purchase removes ads. * On first launch, iOS asks whether to allow tracking. You can decline and still use every feature. CONTACT hasegi.cs@gmail.com We hope math stops being something to memorize and becomes a journey of thinking, all on a single map.

About

읽어줘

Features
Read full description

읽어줘는 텍스트를 한 줄씩 음성으로 읽어주는 TTS(Text-to-Speech) 앱입니다. 받아쓰기, 외국어 단어 암기, 대본 연습처럼 "듣고 따라 하는" 공부에 맞춰 만들었습니다. [줄 단위 읽기] • 텍스트를 한 줄씩 끊어 읽습니다 • 줄 간 쉬는 시간: 문장 사이 간격을 0.5~5초로 조절 • 줄 간 보장시간: 짧은 줄도 정한 시간만큼 기다려 받아쓸 여유를 줍니다 • 재생·일시정지·처음부터, 줄을 눌러 바로 건너뛰기 [반복 학습] • 단어별 반복 1~10회: 한 단어씩 여러 번 들려줍니다 • 줄별 반복 1~10회: 문장 단위로 반복합니다 • 읽기 속도 10%~100%, 음높이·음량 조절 [목소리와 화면] • 기기에 설치된 목소리 중 선택(남성/여성, 온라인/오프라인) • 앱을 쓰는 동안 화면이 꺼지지 않게 설정 • 재생 중에도 빠른 설정으로 속도·반복을 바로 변경 [텍스트 관리] • 자주 쓰는 텍스트 저장·불러오기 • 전체화면 편집기, 붙여넣기 지원 이런 분께 • 받아쓰기 연습하는 학생과 학부모 • 영어 단어·문장을 반복해서 듣고 싶은 학습자 • 발표·연설 대본을 귀로 익히고 싶은 분 • 눈이 피로할 때 귀로 읽고 싶은 분 읽기는 기기의 음성 합성 기능을 사용하므로 오프라인 목소리를 고르면 인터넷 없이도 동작합니다.

Screenshots

Think Math4 screens
읽어줘4 screens

Verdict

The call

The clearest difference is update cadence: 읽어줘 at daily against Think Math's every 3 weeks. Think Math's advantage is iOS requirement (13.0 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Think Math ships an update every 3 weeks, 읽어줘 daily. The most recent releases landed on October 8, 2026 and October 7, 2026 respectively.

Scorecard2 real differences · 6 level
Think Math versus 읽어줘: the parameters behind the verdict, then further details
ParameterThink Math읽어줘
PriceFreeFree
Positive reviews100.0% of reviews—
Update frequencyEvery 3 weeksDaily — better
AdsYesYes
In-app purchasesNoNo
MonetizationAd-supported—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS13.0 — better15.0
Further details — not scored
Size46 MB23 MB
Age rating4+4+
DeveloperHasegi Inc.HYUNWOO LEE

In-app purchases

None

Think Math

No in-app purchases

None

읽어줘

No in-app purchases

Questions

Is Think Math free?
Think Math is free to download, with no in-app purchases.
Is 읽어줘 free?
읽어줘 is free to download, with no in-app purchases.
Do Think Math or 읽어줘 have ads?
Both Think Math and 읽어줘 show ads.
Which is updated more often, Think Math or 읽어줘?
Think Math ships an update every 3 weeks, and 읽어줘 daily. Most recently, Think Math was updated on October 8, 2026 and 읽어줘 on October 7, 2026.

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