TwoUp Split Screen Dual Window
Multitask Two Apps: Web & PDF
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
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 — WITH PRO
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, and no server of ours. 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.
The app sends anonymous usage statistics so we can see which screens people reach and
where they get stuck. None of your content is ever included — not your notes, not the
addresses you open. You can switch it off in Menu > App > Share usage data.
TwoUp Pro adds two things: keeping more than one saved workspace, and saving your own
sites as shortcuts.
Terms of Use: https://nikolaykutsbr.github.io/twoup-support/terms.html
Privacy Policy: https://nikolaykutsbr.github.io/twoup-support/privacy-policy.html
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
New icon: two panes, one screen. Plus small improvements and fixes.
The developer, Mikalai Kuts, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Identifiers
- Usage Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Mikalai Kuts
- Size
- 4.6 MB
- Category
- Productivity
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later. - Mac
Requires macOS 15.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.0 or later.
- iPhone
- Languages
- English
- Age Rating
16+
- 16+
- Contains
Unrestricted Web Access
- In-App Purchases
Yes
- TwoUp Plus Week $6.99
- TwoUP Plus Year $59.99
- Copyright
- © 2026 Nikolay Kuts