SumDoc — DOCX Document Editor

SumDoc — DOCX Document Editor

Open and edit Word documents

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Free

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Details

Released
September 4, 2026
Updated
October 4, 2026

Features

SumDoc — DOCX Document Editor screenshot #1 for iPhone
SumDoc — DOCX Document Editor screenshot #2 for iPhone
SumDoc — DOCX Document Editor screenshot #3 for iPhone
SumDoc — DOCX Document Editor screenshot #4 for iPhone
SumDoc — DOCX Document Editor screenshot #5 for iPhone
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About

SumDoc opens and edits Word documents on your device. The editor runs on the same native DOCX engine that powers SumOffice on the desktop and on the server — so a document looks and behaves the same wherever you open it. No re-rendering, no drift between what you see on the phone and what your colleague sees on a laptop. WHAT IT DOES • Opens .docx and .docm files — from the Files app, mail, or any app’s “Open in…” • Edits text, applies styles and formatting with the familiar ribbon • Edits pictures: wrap, crop, borders and effects • Keeps the document structure intact — tables, lists, page layout • Built-in assistant: ask how to do something and get the steps, in your language • Report a problem in two taps — your report gets a number and a status right in the app YOUR FILES STAY YOURS Editing happens on the device. Documents are not uploaded anywhere, and the app does not require an account to open a file. Only what you send to support leaves the phone — see the privacy policy. PART OF SUMOFFICE SumOffice is an office suite built around one document engine: the same logic in a desktop application, inside your own product, on a server, and here on the phone. SumSheet is its spreadsheet counterpart. SumOffice is an independent product and is not affiliated with Microsoft. Learn more: https://sumoffice.com Privacy Policy: https://sumoffice.com/app-privacy.html Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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What's New in SumDoc

2026.4.3

October 4, 2026

Support requests now reach the right service for your region. Faster, more reliable document rendering and editing. Fixes for mixed left-to-right and right-to-left text.

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