Comparison

서울시립대 모바일 ID 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

서울시립대 모바일 ID

This application serves as a mobile identification card for Seoul National University of Science and Technology. It allows users to utilize a QR code for access within the university and related institutions, functioning as a student or identification card. Login is seamless using existing academic system credentials.

Highlights
  • Mobile student ID
  • QR code authentication
  • Academic system login
  • ID card issuance
  • Settings menu
Features
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서울시립대학교 내에서 사용 할 수 있는 모바일 신분증 애플리케이션입니다. QR 코드가 첨부된 해당 어플을 활용하여 교내와 관련기관에서 학생증(또는 신분증)으로 활용할 수 있습니다. 서울시립대학교 학사 정보 시스템 로그인 계정을 그대로 사용하여 로그인 하시면 되며, 발급 화면이 표시되면 한번의 발급 버튼 클릭으로 바로 모바일 신분증을 사용 할 수 있습니다. 모바일 학생증(신분증) 화면 및 사용법, 신분증 재발급, 설정 메뉴로 구성되어 있습니다.

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

서울시립대 모바일 ID4 screens
PDF Grader PRO4 screens

Verdict

The call

The clearest difference is price: 서울시립대 모바일 ID at Free against PDF Grader PRO's $4.99. 서울시립대 모바일 ID also leads on ads (none vs shown) and iOS requirement (13.0 vs 17.6). PDF Grader PRO's advantage is update cadence (every 3 days vs every 4 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

서울시립대 모바일 ID 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

서울시립대 모바일 ID ships an update every 4 months, PDF Grader PRO every 3 days. The most recent releases landed on September 21, 2026 and October 7, 2026 respectively.

Scorecard4 real differences · 6 level
서울시립대 모바일 ID versus PDF Grader PRO: the parameters behind the verdict, then further details
Parameter서울시립대 모바일 IDPDF Grader PRO
PriceFree — better$4.99
Rating2.5 (2 ratings) — better—
Positive reviews18.2% of reviews—
Number of ratings2 — better—
Update frequencyEvery 4 monthsEvery 3 days — better
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad
Requires iOS13.0 — better17.6
Further details — not scored
Size6 MB12 MB
Age rating4+4+
DeveloperLOTECS CO.LTDHyeonchan Yu

In-app purchases

None

서울시립대 모바일 ID

No in-app purchases

None

PDF Grader PRO

No in-app purchases

Questions

Is 서울시립대 모바일 ID free?
서울시립대 모바일 ID 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 서울시립대 모바일 ID or PDF Grader PRO have ads?
PDF Grader PRO shows ads; 서울시립대 모바일 ID does not.
Which is updated more often, 서울시립대 모바일 ID or PDF Grader PRO?
서울시립대 모바일 ID ships an update every 4 months, and PDF Grader PRO every 3 days. Most recently, 서울시립대 모바일 ID was updated on September 21, 2026 and PDF Grader PRO on October 7, 2026.

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