OpenViewer
BongJun Park Productivity iPhoneiPadiPod touch
OpenViewer is a free Productivity app for iPhone and iPad by BongJun Park. Requires iOS 15.1. Updated August 10, 2026.
- Price
- Free
- on the App Store
- Size
- 41 MB
- Age 4+
- Updated
- Aug 10
- 2026 · v1.0.20
Screenshots
About OpenViewer
OpenViewer is a lightweight viewer for all standard document formats. [Supported formats] PDF · HWP · DOCX · XLSX · PPTX · EPUB · TXT · Images [Key features] • Fast launch • Dark mode • Recent files + favorites • 100% on-device processing • Native HWP support for Korean documents [Why OpenViewer?] - No in-app purchases - No account required - Ad-supported (no ads inside viewer) - English, Korean, Japanese UI Contact: [email protected]
What’s new
Version 1.0.20 · Updated August 10, 2026
What's new • HWP text preview — read Korean HWP documents directly in the app • XLSX & DOCX viewers work fully offline (no internet required) • Latest iOS SDK and stability improvements Still 100% free · no account · everything stays on your device.
App privacy
The developer, BongJun Park, reported these privacy practices to Apple.
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Identifiers: Device ID
Data Not Linked to You
The following data, which may be collected but is not linked to your identity, may be used for the following purposes:
- Identifiers: Device ID
- Usage Data: Product Interaction
- Diagnostics: Crash Data
Used for: Third-Party Advertising, Developer’s Advertising or Marketing, Analytics, App Functionality
Alternatives to OpenViewer
Looking for apps like OpenViewer? Here are 6 similar apps on the App Store.
-
ctLibrary
-
케어브이
-
AllDocs - Document Viewer
-
Document Reader & PDF View
-
MP OpenView
-
Doc Vault - File Manager
| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| OpenViewer | – | Free | August 10, 2026 | |
| ctLibrary | – | Free | Jun 4, 2026 | Compare |
| 케어브이 | – | Free | Oct 22, 2026 | Compare |
| AllDocs - Document Viewer | – | Free | Jun 25, 2026 | Compare |
| Document Reader & PDF View | – | Free | Jul 27, 2026 | Compare |
| MP OpenView | – | Free | Jan 31, 2024 | Compare |
| Doc Vault - File Manager | – | Free | Oct 15, 2026 | Compare |
Compare OpenViewer with the top alternatives: ratings, updates, ASO score and keyword gaps →