Duo: Split Screen Dual Window

TwoUp puts two things on one iPhone screen at the same time: a web page, a PDF and a
plain-text note, in any combination you need.

Read a PDF above and write your notes below. Keep a reference page open beside the
document you are working through. Both panes stay live — scroll one and the other keeps
its place.

SAVE THE PAIR
A pair of panes is a workspace. Name it, and it reopens exactly as you left it: the same
document, the same page, the same note text, the same divider position.

MADE FOR READING
Drag the divider to give either pane more room, or send one pane full screen and back.
Turn the phone sideways and a PDF opens as a two-page spread, like a book, with your note
still beside it.

YOUR OWN SITES
Save the pages you keep coming back to, with their titles and icons, and open one into a
pane without typing an address.

IT ALL STAYS ON YOUR PHONE
No account, no sign-in, no server. Your notes, your documents and your saved sites never
leave the device — there is nowhere for them to go. The app asks for no permissions at
all: no camera, no photos, no contacts, no location.

TwoUp Pro adds one thing: keeping more than one saved workspace.

Terms of Use: https://nikolaykutsbr.github.io/twoup-support/terms.html
Privacy Policy: https://nikolaykutsbr.github.io/twoup-support/privacy-policy.html