Comparison

RAYUL 한글숲 vs Number Master

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

Head to head
About

RAYUL 한글숲

Features
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RAYUL 한글숲은 만 3~6세 아이가 소리와 이야기로 한글 원리를 발견하도록 돕는 유아 한글 학습 앱입니다. [오늘의 한글 학습] • 홈에서 오늘 배울 단계와 목표를 한눈에 확인 • 연령과 현재 숙달도에 맞춘 5~12분 수업 • 짧은 이야기 → 핵심 낱말 → 한글 놀이 → 함께 놀이 [한글을 실제로 익히는 놀이] • 자모 소리를 듣고 맞는 글자 찾기 • 낱말의 음절 수를 세고 직접 고르기 • 같은 첫소리 찾기, 자음+모음 결합, 사라진 음절 찾기 • 획순 보기, 따라 쓰기, 혼자 쓰기 • 단어 정원과 대화식 그림책 [아이에게 맞춰지는 학습] • 오답과 숙달도에 따라 선택지·힌트·난이도 조절 • 연령별 콘텐츠와 이전 단계 복습 자동 구성 • 점수·순위·빨간 X 없이 다시 시도할 수 있는 환경 • 보호자가 원할 때만 기술별 학습 점검 [보호자와 개인정보] • 비교가 아닌 관찰 중심 보호자 대시보드 • 하루 이용 시간과 소리·진동·움직임 설정 • 광고·추적·구독·인앱 구매 없음 • 인터넷 없이 학습 가능 • 마이크는 선택 기능이며 녹음은 프로필별로 기기에만 저장·삭제 가능 소리 듣기, 글자 찾기, 조합하기, 쓰기, 말하기, 그림책 읽기를 한 흐름으로 연결해 아이가 부담 없이 매일 한글을 만나도록 설계했습니다.

About

Number Master

Features
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Build stronger math skills and sharper thinking—one quick round at a time. Number Master combines arithmetic with logic, memory, and focus training in a colorful learning app for children. ■ Practice five math areas Choose addition, subtraction, mixed operations, multiplication, or division. Work from single-digit sums to larger numbers and times tables from 2 to 9. ■ Dozens of brain-boosting mini-games Count cubes, spot patterns, measure, match pairs, remember sequences, find numbers, solve puzzles, and spot differences. ■ Levels that rise with practice Every topic has its own level, so progress stays visible and each round brings a new goal. ■ Learn freely at the right pace Choose any math area and topic. Short rounds and intuitive touch controls make daily practice easy. ■ Built with families in mind Create up to three profiles with progress saved separately. A grown-up check protects settings and profile management. Level up math, logic, memory, and focus with Number Master! Terms of use : https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy : https://www.endevlab.com/app/hashtaggenerator/privacy

Screenshots

RAYUL 한글숲4 screens
Number Master4 screens

Verdict

The call

The clearest difference is ads: RAYUL 한글숲 at none against Number Master's shown. Number Master's advantage is iOS requirement (15.0 vs 17.0). On price, update cadence, 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

RAYUL 한글숲 ships an update weekly, Number Master every 5 days. The most recent releases landed on October 14, 2026 and October 11, 2026 respectively.

Scorecard2 real differences · 4 level
RAYUL 한글숲 versus Number Master: the parameters behind the verdict, then further details
ParameterRAYUL 한글숲Number Master
PriceFreeFree
Update frequencyWeeklyEvery 5 days — better
AdsNo — betterYes
In-app purchasesNoNo
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.015.0 — better
Further details — not scored
Size41 MB161 MB
Age rating4+4+
DeveloperYOUNGSOO KIMENDEVLAB

In-app purchases

None

RAYUL 한글숲

No in-app purchases

None

Number Master

No in-app purchases

Questions

Is RAYUL 한글숲 free?
RAYUL 한글숲 is free to download, with no in-app purchases.
Is Number Master free?
Number Master is free to download, with no in-app purchases.
Do RAYUL 한글숲 or Number Master have ads?
Number Master shows ads; RAYUL 한글숲 does not.
Which is updated more often, RAYUL 한글숲 or Number Master?
RAYUL 한글숲 ships an update weekly, and Number Master every 5 days. Most recently, RAYUL 한글숲 was updated on October 14, 2026 and Number Master on October 11, 2026.

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