KongDoc vs Simple PDF
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
KongDoc
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KongDoc, 스마트 워치/스마트 팔찌와 함께 걸음 수, 칼로리, 심박수, 수면 등과 같은 건강 데이터를 주로 기록합니다.
Simple PDF
This application allows users to view, annotate, and edit PDF documents with ease. Features include document management, OCR capabilities, and a built-in scanner. It's designed for students and professionals to stay productive on the go.
- View, annotate, and edit PDFs
- Full-text search and navigation
- Free-draw and text box annotation
- Page reordering and PDF merging
- Scan documents with built-in camera
- OCR for text extraction
- Home screen widget for quick access
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Simple PDF Reader is a powerful, fast, and beautifully designed app for viewing, annotating, and editing your PDF documents — all in one place. Whether you're a student, professional, or just organizing paperwork, Simple PDF Reader keeps you productive on the go. Key Features: - Viewing & Navigation Smooth, fast PDF rendering with page thumbnail scrubber Table of contents (outline) and bookmarks for quick navigation Full-text search across the document Auto-scroll with adjustable speed for hands-free reading - Annotation & Drawing Free-draw with pen and highlighter tools Add text boxes anywhere on the page Insert and position signatures with drag & resize handles Eraser, undo, and redo support - Document Management Reorder and delete pages in the page editor Merge multiple PDFs into one - Scan paper documents with the built-in document camera Import PDFs from Files, iCloud, and other apps via share extension - OCR Extract text from scanned or image-based PDFs - Home Screen Widget Quick access to recently opened documents from your Home Screen - Dark Mode supported
Screenshots
Verdict
The clearest difference is update cadence: KongDoc at every 5 days against Simple PDF's every 3 weeks. KongDoc also leads on iOS requirement (11.0 vs 16.6). 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
KongDoc ships an update every 5 days, Simple PDF every 3 weeks. The most recent releases landed on October 10, 2026 and October 6, 2026 respectively.
| Parameter | KongDoc | Simple PDF |
|---|---|---|
| Price | Free | Free |
| Rating | — | 3.7 (3 ratings) — better |
| Number of ratings | — | 3 — better |
| Update frequency | Every 5 days — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 11.0 — better | 16.6 |
| Further details — not scored | ||
| Size | 91 MB | 12 MB |
| Age rating | 4+ | 4+ |
| Developer | 敏 罗 | Chang Keun Jung |
In-app purchases
KongDoc
No in-app purchases
Simple PDF
No in-app purchases
