Comparison

MobiOffice・Word Docs・Excel・PDF vs OpenDocument Reader Pro

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

MobiOffice・Word Docs・Excel・PDF

This app allows users to create, edit, and manage documents, spreadsheets, and presentations across various file formats. It offers cloud storage integration, document scanning, and PDF viewing and annotation capabilities. Premium features include advanced editing tools, PDF conversion, and enhanced security options.

Highlights
  • Create and edit documents, spreadsheets, and presentations
  • Compatible with Microsoft Office and Google Workspace
  • View and annotate PDF files
  • Integrates with Google Drive, OneDrive, Box, and Dropbox
  • Scan paper documents to digital files
  • 5GB free cloud storage
Features
Read full description

MobiOffice is a complete mobile office suite that helps freelancers, remote workers, and small business owners create, edit, and manage documents, spreadsheets, presentations, and PDFs — also ideal for students and anyone looking for a simple, affordable Microsoft Office alternative — fully compatible with Microsoft Office, Google Docs, and 10+ other formats, all from one app on iPhone and iPad. KEY CAPABILITIES • Create and edit Word-compatible documents (.doc, .docx) with 70+ fonts, rich formatting, tables, and full page layout controls • Build and analyze spreadsheets (.xls, .xlsx) with 250+ functions, advanced charts, filters, and data validation • Design and deliver presentations (.ppt, .pptx) with transitions, animations, themes, and presenter mode — optimized for iPad • View, annotate, sign, fill, and convert PDF files — including handwritten signatures and fillable forms (Premium) • Listen to Word documents and PDF files read aloud — hands-free, perfect for driving, commuting, or on the go • Work fully offline — access and edit all your files without an internet connection • Store and sync via 5GB free cloud on MobiDrive, plus Google Drive, OneDrive, Dropbox, and Box • Scan paper documents to digital files directly from your camera USE CASES • Open and edit a Word or Excel file received as an email attachment — on iPhone or iPad, no desktop needed • Review, mark up, and sign PDF contracts on the go • Run a full home office from your iPad — documents, spreadsheets, and presentations in one app • Have a contract or report read aloud while driving or commuting • Work on client documents, proposals, or invoices offline while traveling • Deliver a polished presentation from your iPad in a client meeting or remote call • Students: write and submit assignments in Word or PDF without needing a laptop • A simple, affordable Microsoft Office alternative for everyday users WHY MOBIOFFICE • Purpose-built for iPhone and iPad — intuitive mobile-first experience • Full Microsoft Office compatibility — zero formatting loss when sharing files • Built-in PDF module — view, sign, annotate, and convert PDFs without a separate app • Read Aloud for Word and PDF — turn your commute into productive work time • Works completely offline — unlike Google Docs, reliable anywhere • Simple and intuitive — accessible for all ages and experience levels • Trusted by 5,000,000+ users over 5 years PREMIUM — Available as weekly and yearly subscriptions • 50GB cloud storage on MobiDrive • PDF converter (PDF to Word, Excel, ePub) • Password-protected documents • Track changes, conditional formatting, slide animations & more • A fraction of the cost of Microsoft 365!!!. TL;DR MobiOffice is the go-to mobile office suite for freelancers, remote workers, and small business owners — and a simple, affordable choice for students and everyday users — with full Microsoft Office compatibility, a powerful PDF module, hands-free Read Aloud, and reliable offline access, optimized for iPhone and iPad. Privacy Policy: https://mobisystems.com/privacy-policy Terms of Use: https://www.mobisystems.com/terms-of-use

About

OpenDocument Reader Pro

View and edit ODF files like ODT, ODS, and ODP on your mobile device. Access documents from cloud storage or your device's file explorer, and even open password-protected files. Supports a wide range of other file formats for comprehensive document management.

Highlights
  • View and edit ODT, ODS, ODP files
  • Supports LibreOffice and OpenOffice formats
  • Open files from cloud storage and other apps
  • Edit documents with basic text modifications
  • Open password-protected documents
  • Search and highlight keywords
  • Offline capability
Features
Currently charting
Read full description

Read documents created using LibreOffice or OpenOffice on the go, wherever you keep them, with the Document Reader! The file reader lets you open files like ODF (Open Document Format) documents created using LibreOffice or OpenOffice wherever you are. In the bus on your way to school wanting to look at your notes before the big exam? No problem! With the Document Reader you can open files wherever you like and read & search through your documents to go in a clean and simple way. There is a text editor in here as well, for the last typo before a document goes out. It is a young one and it does not reach every document yet, so the reader is what this app is for. The Pro version also adds new paragraphs, text formatting such as bold, colours and sizes, and more ways to mark PDFs: underline, strike out and draw. You can open files from ODF (ODT, ODS & many more) that you have created with Libre Office or OpenOffice also from within other apps. Supported apps include GMail, Google Drive, iCloud, OneDrive, Nextcloud, Box.net, Dropbox and lots of others! Or use our integrated file explorer instead to open files on your device. THE ALL IN ONE DOCUMENT READER *open files with ODF: ODT (writer), ODS (calc), ODP and ODG without a hassle *fix typos, edit spreadsheet cells and highlight text in documents and PDFs *securely open password-protected documents *search for keywords in your ODT (writer), ODS (calc) or ODG and highlight them *print documents if your device is connected to a printer *read your documents in fullscreen to avoid distractions *select and copy text out of your documents *enjoy your documents even without internet connectivity - fully offline capable *read out aloud your documents using Text-To-Speech technology DOCUMENTS TO GO - WHEREVER YOU LIKE In addition to that, the document reader aims to support various other file formats as well as possible: - Portable Document Format (PDF) - Archives: ZIP - Images: JPG, JPEG, GIF, PNG, WEBP, TIFF, BMP, SVG, etc - Videos: MP4, WEBM, etc - Audio: MP3, OGG, etc - Text files: CSV, TXT, HTML, MD, RTF - Microsoft Office (OOXML): Word (DOC, DOCX), Excel (XLS, XLSX), PowerPoint (PPT, PPTX) - Apple iWork: Pages, Numbers, Keynote - Libre Office and Open Office ODF (ODT, ODS, ODP, ODG, FODT, FODS, FODP, FODG) This app is open source. We are not affiliated with OpenOffice, LibreOffice or similar. Made in Austria. We highly appreciate all kinds of feedback via email. ODF is the format used by office suites like Open Office and Libre Office. Text documents (Writer, ODT), as well as spreadsheets (Calc, ODS) and also presentations (Impress, ODP) are supported, including complex formatting and embedded images. Graphs are no problem either. If you want to secure your data you can even open password-protected documents. Other applications that are using this format are LibreOffice, OpenOffice, NeoOffice, StarOffice, Go-oo, IBM Workplace, IBM Lotus Symphony, ChinaOffice, AndrOpen Office, Co-Create Office, EuroOffice, KaiOffice, Jambo OpenOffice, MagyarOffice, MultiMedia Office, MYOffice, NextOffice, OfficeOne, OfficeTLE, OOo4Kids, OpenOfficePL, OpenOfficeT7, OxOffice, OxygenOffice, Pladao Office, PlusOffice, RedOffice, RomanianOffice, SunShine Office, ThizOffice, UP Office, White Label Office, WPS Office Storm, Libre Office, Collabora Office and 602Office.

Screenshots

MobiOffice・Word Docs・Excel・PDF4 screens
OpenDocument Reader Pro4 screens

Verdict

The call

The clearest difference is review sentiment: MobiOffice・Word Docs・Excel・PDF at 70% against OpenDocument Reader Pro's 20%. MobiOffice・Word Docs・Excel・PDF also leads on price (Free vs $3.99) and rating (4.7 vs 4.2). OpenDocument Reader Pro's advantage is in-app purchases (none vs 17) and iOS requirement (15.0 vs 18.0). On update cadence, ads, chart position and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

MobiOffice・Word Docs・Excel・PDF is free to download; OpenDocument Reader Pro costs $3.99 up front. MobiOffice・Word Docs・Excel・PDF sells 8 in-app purchases, starting at $4.99 per month. OpenDocument Reader Pro asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

MobiOffice・Word Docs・Excel・PDF holds the better App Store score, 4.7 against 4.2. That said, the two scores are not equally well evidenced: MobiOffice・Word Docs・Excel・PDF has 45K ratings behind it against 292, so its average is the more settled of the two. Written reviews point the same way: 70% of MobiOffice・Word Docs・Excel・PDF's written reviews are positive against 20% of OpenDocument Reader Pro's.

UpkeepUpdate frequency

MobiOffice・Word Docs・Excel・PDF ships an update monthly, OpenDocument Reader Pro every 2 months. The most recent releases landed on September 29, 2026 and September 25, 2026 respectively.

Scorecard7 real differences · 4 level
MobiOffice・Word Docs・Excel・PDF versus OpenDocument Reader Pro: the parameters behind the verdict, then further details
ParameterMobiOffice・Word Docs・Excel・PDFOpenDocument Reader Pro
PriceFree — better$3.99
Rating4.7 (45K ratings) — better4.2 (292 ratings)
Positive reviews69.6% of reviews — better19.5% of reviews
Number of ratings45K — better292
Update frequencyMonthly — betterEvery 2 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemiumAd-supported — better
Best chart rank#42 — better#68
DevicesiPhone, iPad, Apple WatchiPhone, iPad, iPod
Requires iOS18.015.0 — better
Further details — not scored
Size244 MB6 MB
Age rating4+4+
DeveloperMobiSystems, Inc.Stefl und Taschauer OG

Customer experience

MobiOffice・Word Docs・Excel・PDF

All ratings44,564 ratings
Positive94.1%
Neutral3.8%
Negative2.0%
Written reviews2,160 reviews
Positive69.6%
Neutral6.2%
Negative24.3%

OpenDocument Reader Pro

All ratings292 ratings
Positive78.8%
Neutral5.8%
Negative15.4%
Written reviews82 reviews
Positive19.5%
Neutral6.1%
Negative74.4%

User reviews

MobiOffice・Word Docs・Excel・PDF

From 45K App Store ratings

What we love

  • 🚀 Provides a real service
  • 🚀 Unrivaled duo with desktop version
  • 👍 Excellent for creating presentations and papers
  • 👍 Handy app to use
  • 👍 Best mobile office app

Room to improve

  • 🐛 Bookmarks don't work
  • 🐛 Cannot delete files
  • 🐛 Freezes and crashes
  • 🐛 Printing issues
  • 🐛 Formatting issues when converting files

OpenDocument Reader Pro

From 292 App Store ratings

What we love

  • 👍 Can open documents
  • 👍 Can view documents
  • 👍 Imports OpenOffice beautifully
  • 👍 Useful for quick edits
  • 👍 Offline functionality

Room to improve

  • 🐛 Cannot edit documents
  • 🐛 Formatting issues
  • 🐛 Text illegible/overlapping
  • 🐛 App crashes
  • 🐛 Does not save changes

Bugs and requests

MobiOffice・Word Docs・Excel・PDF

Reported bugs

4 issues
  • Crashes after iOS 13 update
  • Losing documents after migration to new app
  • Inability to restore previous paid version
  • Unreadable files after conversion

Requested features

6 requests
  • Add math symbols in word processor
  • Allow font customization
  • Add Apple Pencil support for editing
  • Improve file management and cloud integration
  • Add dark mode
Show 1 more
  • Improve keyboard shortcuts and productivity features

OpenDocument Reader Pro

Reported bugs

24 issues
  • App crashes when saving
  • App crashes when opening files
  • App crashes when typing
  • App crashes when searching
  • Changes not saved
Show 19 more
  • Formatting not retained
  • Text overlapping
  • Files not opening
  • Images not loading
  • Cyrillic characters displayed incorrectly
  • Documents corrupted upon opening
  • Cannot edit PDF files
  • Only first sheet of multi-sheet files visible
  • Incompatible with VoiceOver
  • Documents displayed as plain text
  • Cannot create new documents
  • Cannot extend existing documents
  • Search function not working
  • App crashes when trying to edit blank page
  • File saving issues after iPadOS 14 upgrade
  • ODG draw documents only show first page
  • Cannot edit audio files
  • App crashes when opening .xlsx file
  • No editing functionality for VoiceOver users

Requested features

9 requests
  • Add search function
  • Add ability to create new documents
  • Improve editing functionality
  • Fix formatting issues
  • Improve handling of large files
Show 4 more
  • Support for more file types
  • Improve compatibility with VoiceOver
  • Add dark mode
  • Add advanced analytics dashboard

In-app purchases

8 purchases

MobiOffice・Word Docs・Excel・PDF

Subscriptions8
  • OfficeSuite Premium Monthly$4.991 Month
  • OfficeSuite Premium Weekly7 Days trial$7.997 Days
  • MobiOffice Premium Weekly7 Days trial2 variants$7.997 Days
Show 5 more
  • MobiOffice Premium Weekly7 Days trial$9.997 Days
  • OfficeSuite Personal7 Days trial$29.991 Year
  • OfficeSuite Premium7 Days trial$29.991 Year
  • OfficeSuite Premium Yearly7 Days trial$29.991 Year
  • OfficeSuite Premium Yearly3 Days trial3 variants$39.991 Year
None

OpenDocument Reader Pro

No in-app purchases

Questions

Is MobiOffice・Word Docs・Excel・PDF free?
MobiOffice・Word Docs・Excel・PDF is free to download, with in-app purchases available.
Is OpenDocument Reader Pro free?
OpenDocument Reader Pro costs $3.99, with no in-app purchases.
Which has better reviews, MobiOffice・Word Docs・Excel・PDF or OpenDocument Reader Pro?
MobiOffice・Word Docs・Excel・PDF is rated higher. MobiOffice・Word Docs・Excel・PDF averages 4.7 out of 5 from 45K ratings, while OpenDocument Reader Pro averages 4.2 from 292 ratings.
Do MobiOffice・Word Docs・Excel・PDF or OpenDocument Reader Pro have ads?
Neither MobiOffice・Word Docs・Excel・PDF nor OpenDocument Reader Pro shows ads.
Which is updated more often, MobiOffice・Word Docs・Excel・PDF or OpenDocument Reader Pro?
MobiOffice・Word Docs・Excel・PDF ships an update monthly, and OpenDocument Reader Pro every 2 months. Most recently, MobiOffice・Word Docs・Excel・PDF was updated on September 29, 2026 and OpenDocument Reader Pro on September 25, 2026.
Which is more popular, MobiOffice・Word Docs・Excel・PDF or OpenDocument Reader Pro?
MobiOffice・Word Docs・Excel・PDF currently peaks at #42 in the App Store charts, and OpenDocument Reader Pro at #68. Chart position reflects recent download velocity rather than total install base.

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