FileDuel vs Duo

FileDuel puts two files side by side and shows you exactly what changed — every added line, every deleted word, every modified cell. No guesswork, no scrolling back and forth manually. Whether you're reviewing a contract redline, reconciling two Excel reports, tracking changes in a code file, or comparing scanned documents — FileDuel handles it in seconds. WHAT YOU CAN COMPARE Text & Documents — .txt, .docx, .md, XML, code files, EDI, and more Excel Spreadsheets — compare cells, formulas, and sheet structure across .xlsx files PDF Files — extract and compare text content across pages Photos & Scans — photograph a printed document and compare against another HOW IT WORKS 1. Pick File A and File B — from your device or paste text directly 2. Tap Compare 3. See every change highlighted — added lines in green, removed in red, modified in amber KEY FEATURES Word-level and character-level diff — see exactly which words changed, not just which lines Split view and unified view — choose the layout that works for you Portrait and landscape support — full screen real estate in any orientation Excel sheet mapping — match sheets across two files, column-by-column comparison Formula diff — see what Excel formulas changed, not just cell values PDF page navigation — jump to changed pages instantly Find in diff — search within your comparison results Export results — share as HTML, CSV, or JSON Scroll sync — both panes move together for easy line-by-line review Dark mode — full dark theme that's easy on the eyes 100% ON-DEVICE PRIVACY Your files never leave your phone. FileDuel runs entirely on-device — no uploads, no cloud processing, no accounts required. What you compare stays on your device, period. BUILT FOR → Legal & compliance teams reviewing contract versions → Finance teams reconciling Excel reports → Developers comparing config files and code → Writers tracking document revisions → Anyone who needs to know exactly what changed between two versions of anything Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ FileDuel. Two files. Every change.

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