Proton Drive vs OpenDocument Reader
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Proton Drive
Securely store and back up your files and photos with end-to-end encryption. Access your content across devices, share securely with password protection, and enjoy peace of mind with Swiss privacy laws. Offers free storage with upgrade options.
- End-to-end encrypted storage
- Automatic photo and video backup
- Secure link sharing with passwords
- PIN/biometric protection
- Offline file access
- File version history
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Proton Drive provides private and secure storage for your files and photos. With Proton Drive you can protect important documents, automatically back up cherished memories, and access your content across devices. All Proton Drive accounts come with 5 GB of free storage and you can upgrade to up to 1 TB of storage at any time. Trusted by over 100 million users, Proton Drive gives you an end-to-end encrypted vault where only you—and the people you choose—can access your files and photos. Proton Drive features: - Secure storage - Get 5 GB of free encrypted cloud storage with no file size limits. - Share content using secure links with password and expiration settings. - Keep your files and photos safe with PIN or biometric protection. - Access important files and photos even if your device is lost or damaged. Easy to use - Automatically back up photos and videos in their original quality. - Securely organize your cherished memories into albums. - Rename, move, and delete your personal files securely within the app. - Create, edit and collaborate on docs. - View your important files and memories – even when offline. - Restore files with version history. Advanced privacy - Stay private with end-to-end encryption – even Proton can’t view your content. - Secure your metadata, including filenames, sizes, and modification dates. - Protect your content with Swiss privacy laws, the strongest in the world. - Trust in our open-source code that is public and verified by experts. Secure up to 5 GB of free storage for your personal files, photos, and videos with Proton Drive. Stay ahead with our releases and updates by connecting with us! - LinkedIn: https://www.linkedin.com/company/protonprivacy - Instagram: https://www.instagram.com/protonprivacy/ - X/Twitter: https://x.com/ProtonDrive - Reddit: https://www.reddit.com/r/ProtonDrive/ Terms of Service: https://proton.me/legal/terms Privacy Policy: https://proton.me/legal/privacy
OpenDocument Reader
View and edit ODT, ODS, and ODP files on your mobile device. Seamlessly open documents from cloud storage or your device's file explorer, with support for password-protected files and keyword searching. Enjoy offline access and basic editing capabilities.
- View ODT, ODS, ODP files
- Basic document editing
- Open from cloud storage
- Password-protected document support
- Keyword search and highlighting
- Offline functionality
- Print documents
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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. New paragraphs, text formatting and more ways to mark PDFs come with OpenDocument Reader Pro. 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. Ads are shown in order to support the development of this app. They are free to remove temporarily via the in-app menu. 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
Verdict
The clearest difference is in-app purchases: OpenDocument Reader at none against Proton Drive's 9. OpenDocument Reader also leads on rating (4.5 vs 4.1). Proton Drive's advantage is ads (none vs shown) and update cadence (fortnightly vs every 5 weeks). On price, review sentiment, ratings volume 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
Both are free to download. Proton Drive sells 9 in-app purchases, starting at $0.99 per month. OpenDocument Reader asks for nothing beyond the download.
OpenDocument Reader holds the better App Store score, 4.5 against 4.1. Both are backed by a comparable volume of ratings — 1.2K and 902 respectively. Written reviews complicate that: 37% of Proton Drive's written reviews are positive against 30% of OpenDocument Reader's, so the app with the better star average is not the one people write more warmly about.
Proton Drive ships an update fortnightly, OpenDocument Reader every 5 weeks. The most recent releases landed on September 28, 2026 and September 27, 2026 respectively.
| Parameter | Proton Drive | OpenDocument Reader |
|---|---|---|
| Price | Free | Free |
| Rating | 4.1 (1.2K ratings) | 4.5 (902 ratings) — better |
| Positive reviews | 36.8% of reviews — better | 30.5% of reviews |
| Number of ratings | 1.2K — better | 902 |
| Update frequency | Fortnightly — better | Every 5 weeks |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Ad-supported — better |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 235 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | Proton AG | Stefl und Taschauer OG |
Customer experience
Proton Drive
OpenDocument Reader
User reviews
Proton Drive
From 1.2K App Store ratingsWhat we love
- 🚀 Fast and efficient
- 🔒 Secure and private
- 👍 Simple and intuitive UI
- 💡 Integrated with iOS Files app
Room to improve
- 🐛 Buggy and unreliable
- 🔋 High battery consumption
- 📥 Slow upload/download speeds
- 🗂️ Lacking key features like search and sorting
OpenDocument Reader
From 902 App Store ratingsWhat we love
- 👍 Easy to use
- 🚀 Fast file opening
- 💡 Good ODT reader
Room to improve
- 🐛 Corrupted files upon editing
- 🐛 Presentation issues with formatting and features
- 🐛 Inability to edit spreadsheets properly
Bugs and requests
Proton Drive
Reported bugs
4 issues- Frequent crashes and errors
- Inconsistent file syncing across devices
- Unable to access files uploaded from desktop
- Issues with offline file access
Requested features
4 requests- Automatic photo/video backup
- Ability to edit documents within the app
- Seamless integration with other apps for file sharing
- Linux desktop client
OpenDocument Reader
Reported bugs
3 issues- Corrupted files
- Formatting issues
- Crashes and app closing issues
Requested features
3 requests- Dark mode option
- Better spreadsheet editing capabilities
- Improved file format compatibility
In-app purchases
Proton Drive
- Drive Lite 1 month$0.991 Month
- Drive Plus 1 month$4.991 Month
- Drive Plus 1 TB (1 month)$9.991 Month
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- Proton Unlimited 1 month$14.991 Month
- Drive Plus 1 year$47.901 Year
- Drive Plus 1 TB (1 year)$95.991 Year
- Proton Unlimited 1 year$119.001 Year
- Drive Plus$59.99
- Proton Unlimited$149.99
OpenDocument Reader
No in-app purchases
Questions
Is Proton Drive free?
Is OpenDocument Reader free?
Which has better reviews, Proton Drive or OpenDocument Reader?
Do Proton Drive or OpenDocument Reader have ads?
Which is updated more often, Proton Drive or OpenDocument Reader?
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