DocOpen: No Pop-up Doc Viewer

DocOpen opens your documents without hijacking your screen.

No pop-up ads. No forced video ads. No "watch this ad to continue" screens.
Just a small banner at the bottom — that's it.

■ SUPPORTED FORMATS

- PDF (.pdf)
- Microsoft Word (.docx, .doc)
- Microsoft Excel (.xlsx, .xls, .csv)
- Microsoft PowerPoint (.pptx, .ppt)
- Korean HWP (.hwp, .hwpx)
- Plain text (.txt)

One app for every major document format.

■ FEATURES

- Banner ad only — no interruptions while you read
- 100% offline — works without an internet connection
- No account required — install and start reading
- No tracking, no data collection — your files never leave your device
- HWP support — most viewers can't open Korean .hwp files. DocOpen can.

■ REMOVE THE BANNER

If the banner bothers you, a one-time purchase removes it forever.
No subscription. No upsells. Buy once, done.

■ BUILT ON OPEN SOURCE

- HWP support: rhwp (open-source HWP engine)
- Office formats: LibreOffice rendering

Open-source licenses are available in the "About" screen in the app.

■ WHO IT'S FOR

- Anyone who deleted other doc viewers because of intrusive ads
- People who receive Korean HWP files (students, expats, businesses working with Korea)
- Users in areas with unstable internet — DocOpen works fully offline
- Users who want a simple viewer with no sign-up
- Privacy-conscious users who don't want files uploaded to the cloud

■ ABOUT THE DEVELOPER

Built by Wick Labs — a solo developer who got tired of ad-heavy document viewers.
Feedback and bug reports are always welcome.