Comparison

YBM ECC 우리 아이 바른 영어 교육 vs PDF Grader PRO

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

Head to head
About

YBM ECC 우리 아이 바른 영어 교육

This app provides online after-school learning services for students enrolled in YBM ECC. It offers personalized AI-driven practice, curriculum information, academy news, and administrative details like shuttle bus routes.

Highlights
  • AI-powered adaptive learning
  • Mobile learning on phones and tablets
  • Curriculum guidance
  • Academy news and announcements
  • Shuttle bus route information
  • Student activity tracking
Read full description

YBM ECC 전용 모바일 앱 출시 YBM ECC에 재원중인 학생들의 학습 활동, 학원 소식과 정보, 공지사항 및 학원생들을 위한 방과 후 온라인 학습 서비스(phone, pad 학습 가능)가 제공됩니다. Ilearning AI Edition(방과후 온라인 학습 프로그램)은 YBM ECC 정규 수업과 연계된 AI(Adaptive Learning, 적응형 학습) 기능을 통해 학습자에게 맞춤형 문제를 제공함으로써 효과적인 학습이 이루어질 수 있도록 설계된 자기주도적 학습 시스템을 제공합니다. [주요 기능] - 방과후 온라인 학습 / 모바일(phone, pad) 학습 가능 - 전 과정 커리큘럼 안내 - 전국 학원 안내 및 공지사항 - 포토, 동영상 - 강사소개 - 셔틀버스 노선확인 등 [이용 방법] - 앱을 다운받으시면 ECC 커리큘럼 및 학원 소식 및 셔틀버스 노선등 확인이 가능하며 좌측 상단 전체보기(햄버거메뉴) 메뉴를 클릭하시면 원하는 메뉴를 통해 정보를 확인할 수 있습니다. - 방과후 온라인 학습을 모바일(phone, pad)에서도 학습 가능하며 학원 등록 시 안내받은 방법으로 회원 가입후 생성한 계정을 통해서 로그인 하신 후 학습 하시면 됩니다. - 어플리케이션의 안정화를 위해 새로운 버전 등록 시 지속적인 업데이트를 부탁드립니다. YBM ECC는 주니어 영어 교육의 중요성과 가치를 알고 최초로 국내 주니어 영어교육기관을 설립하여 급변하는 교육 환경 속에서 바른 영어교육을 지향하여 바른 인성, 뛰어난 지성, 남다른 창의성을 가진 글로벌 인재 양성을 위해 끊임없이 연구 노력합니다.

About

PDF Grader PRO

Features
Read full description

PDF Grader Pro brings PDF grading, handwritten feedback, rubrics, and result export into one focused workspace for teachers and educators. Create reusable grading templates, import student answer sheets, and move through each paper without switching between multiple apps. Grade by student or by question, apply checklist-based rubrics and partial credit, then export annotated papers and structured score files. GRADE PDFs YOUR WAY • Import PDF exam papers and student answer sheets • Grade by student or move through the same question across every student • Define answer areas, point values, rubrics, and reusable checklist items • Add partial credit and adjust scores while reviewing each response • Reuse saved templates for future grading sessions • Add more student answer sheets to an existing grading project HANDWRITTEN FEEDBACK • Write directly on PDFs with Apple Pencil or touch • Use pens, highlighters, erasers, lasso selection, and reusable stamps • Add text comments, images, and model-answer annotations • Keep handwriting and grading marks in exported student PDFs OPTIONAL AI-ASSISTED WORKFLOWS • Analyze an exam PDF to draft question structure and answer areas • Generate editable rubric and model-answer drafts from your references • Grade selected answers against your rubric and review suggested feedback • Inspect and edit AI-generated results before applying them AI features are optional and require a Google AI API key entered by the user. AI-generated content may be incomplete or incorrect; the teacher remains responsible for reviewing scores, feedback, and final academic decisions. EXPORT AND BACKUP • Export score reports to Excel or CSV • Save annotated PDFs or split them into individual student files • Package student PDFs together as a ZIP archive • Export portable .pdfgp project files containing the PDF, grading data, and ink • Export reusable grading templates as JSON ORGANIZED FOR REPEATED USE • Keep active and completed grading sessions in a visual library • Separate grading sessions from reusable templates • Automatically save work and reopen projects later • Choose student-by-student or question-by-question workflows PRIVACY AND EXTERNAL PROCESSING Projects and grading results are stored on your device by default. PDF Grader Pro does not upload grading PDFs or student data to its own server. When you choose to use an AI feature, selected answer or PDF images, grading criteria, model answers, teacher feedback, exam information, and related template data may be sent directly to Google AI services using your API key. Processing and retention then follow Google’s applicable terms, settings, and privacy policy. Turn off AI features to use manual grading, annotation, export, and library storage without external AI requests. Third-party advertising services may process device and usage information according to your consent choices, device settings, and the app’s Privacy Policy. Before processing student materials, make sure you have the required permission and remove unnecessary personal, sensitive, or confidential information. Do not send such information through free AI services. PDF Grader Pro is built to support professional judgment, not replace it. Always review grading results before sharing them with students. Support: chani6361@gmail.com

Screenshots

YBM ECC 우리 아이 바른 영어 교육4 screens
PDF Grader PRO4 screens

Verdict

The call

The clearest difference is price: YBM ECC 우리 아이 바른 영어 교육 at Free against PDF Grader PRO's $4.99. YBM ECC 우리 아이 바른 영어 교육 also leads on ads (none vs shown) and iOS requirement (15.0 vs 17.6). PDF Grader PRO's advantage is update cadence (every 3 days vs every 3 months). On 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

YBM ECC 우리 아이 바른 영어 교육 is free to download; PDF Grader PRO costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

YBM ECC 우리 아이 바른 영어 교육 ships an update every 3 months, PDF Grader PRO every 3 days. The most recent releases landed on October 11, 2026 and October 7, 2026 respectively.

Scorecard4 real differences · 4 level
YBM ECC 우리 아이 바른 영어 교육 versus PDF Grader PRO: the parameters behind the verdict, then further details
ParameterYBM ECC 우리 아이 바른 영어 교육PDF Grader PRO
PriceFree — better$4.99
Positive reviews50.0% of reviews—
Update frequencyEvery 3 monthsEvery 3 days — better
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better17.6
Further details — not scored
Size18 MB12 MB
Age rating4+4+
DeveloperYBM NET, Inc.Hyeonchan Yu

In-app purchases

None

YBM ECC 우리 아이 바른 영어 교육

No in-app purchases

None

PDF Grader PRO

No in-app purchases

Questions

Is YBM ECC 우리 아이 바른 영어 교육 free?
YBM ECC 우리 아이 바른 영어 교육 is free to download, with no in-app purchases.
Is PDF Grader PRO free?
PDF Grader PRO costs $4.99, with no in-app purchases.
Do YBM ECC 우리 아이 바른 영어 교육 or PDF Grader PRO have ads?
PDF Grader PRO shows ads; YBM ECC 우리 아이 바른 영어 교육 does not.
Which is updated more often, YBM ECC 우리 아이 바른 영어 교육 or PDF Grader PRO?
YBM ECC 우리 아이 바른 영어 교육 ships an update every 3 months, and PDF Grader PRO every 3 days. Most recently, YBM ECC 우리 아이 바른 영어 교육 was updated on October 11, 2026 and PDF Grader PRO on October 7, 2026.

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