Duo Viewer
Liangjun Song Productivity iPhoneiPadiPod touch
Duo Viewer is a free Productivity app for iPhone and iPad by Liangjun Song. Requires iOS 26.0. Updated October 5, 2026.
- Price
- Free
- on the App Store
- Size
- 2 MB
- Age 17+
- Updated
- Oct 5
- 2026 · v1.0
Screenshots
About Duo Viewer
Make room for two with Duo Viewer, a split-screen browser and file viewer for iPhone. YOUR FAVOURITE WEB APPS, TOGETHER Open two websites on one screen. Compare pages, browse social feeds alongside online video, or keep a reference page within view. Drag the divider to adjust your workspace, minimise a pane when you need more room, and turn your iPhone for a landscape layout. FILES BESIDE THE WEB Import files from the Files app and organise them in Duo Viewer. View PDFs, supported Office and iWork documents, images, text, audio, and video alongside a website or another file. MAKE IT YOUR WORKSPACE • Browse websites in two panes • Save bookmarks and revisit recent addresses • Open links in the other pane • Resize panes and use portrait or landscape mode • Import, view, rename, and delete supported files • Resume your saved workspace
App privacy
The developer, Liangjun Song, reported these privacy practices to Apple.
Data Not Collected
The developer does not collect any data from this app.
Alternatives to Duo Viewer
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| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| Duo Viewer | – | Free | October 5, 2026 | |
| Panezo | – | Free | Oct 23, 2026 | Compare |
| Whittle: Import. Host. Launch! | 4.0 / 5 (1) | Free | Oct 12, 2026 | Compare |
| Webin - Personal Web Launcher | – | Free | Aug 24, 2026 | Compare |
| TwoUp Split Screen Dual Window | – | Free | Oct 14, 2026 | Compare |
| Proxy Browser - Fast & Safe | – | Free | Jun 6, 2026 | Compare |
| StarCy - Dynamic Island AI | 3.7 / 5 (3) | Free | Mar 24, 2026 | Compare |
Compare Duo Viewer with the top alternatives: ratings, updates, ASO score and keyword gaps →