Comparison

OpenDocument Reader vs Paradoc

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

Head to head
About

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.

Highlights
  • View ODT, ODS, ODP files
  • Basic document editing
  • Open from cloud storage
  • Password-protected document support
  • Keyword search and highlighting
  • Offline functionality
  • Print documents
Features
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. New paragraphs, text and cell 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 and colour 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.

About

Paradoc

This app transforms photos of documents into high-quality PDFs, offering a suite of tools for editing, organizing, and securing your files. It handles complex PDF types, including encrypted and form-filled documents, all processed locally on your device without needing an internet connection.

Highlights
  • On-device AI-powered scanning
  • Merge, split, compress PDFs
  • Convert PDFs to images
  • Encrypt and unlock PDFs
  • Handle encrypted and restricted PDFs
  • Fillable form support
  • Organize and reorder pages
Features
Read full description

Paradoc turns a photo of paper into a clean PDF, then does everything else a PDF needs: merge, split, compress, organize, convert, lock, unlock. All of it on your iPhone. No account. No subscription. No ads. Nothing is uploaded. Put your iPhone in airplane mode and every feature still works. A SCANNER THAT UNDERSTANDS PAPER Point the camera at a page. Paradoc finds the edges, squares up the perspective and runs an on-device neural network that lifts shadows and uneven lighting out of the photo, so a page shot on a desk under a lamp comes out looking like it went through a flatbed. It was built and tested on the things people actually scan, not just clean white sheets: receipts, ID cards, book pages, whiteboards, coloured paper. BUILT FOR THE PDFs THAT USUALLY BREAK THINGS Plenty of apps handle the easy files. Paradoc was engineered for the rest: • Encrypted PDFs. Opens password-protected files, including legacy RC4 and AES-128 ones, and keeps them encrypted through Split, Organize and Compress, upgraded to AES-256 on output. • Owner-restricted PDFs. Files locked against printing or copying are detected and handled, no password required. • Digitally signed PDFs. Paradoc checks for signatures before touching a file and warns you when an edit would invalidate one. Certified documents are left untouched. • PDF/A archives. The conformance claim is detected and flagged before you change the file. • Fillable forms. Merge two forms with the same field names and the result still works: clashing fields are renamed, radio groups and nested fields survive, and filled-in values are preserved through Compress. • Rotated pages, PDF 1.4 through 2.0, linearized files, object streams, files up to 100 MB. • Compress keeps what matters: annotations, form values, bookmarks, tagged structure, page labels, named destinations, attachments, CMYK and ICC colour, and the title and author metadata. • Damaged or truncated files get a clear error, never a crash. SEVEN TOOLS SCAN: Camera or photo library, up to 20 pages per document, saved as Auto, Grayscale or Original. MERGE: Up to 20 files in the order you choose, with per-file passwords for encrypted inputs. SPLIT: Pull a page range out into its own file. Encryption is preserved. COMPRESS: Three presets (Light, Balanced, Maximum). Image re-encoding, font subsetting and object-stream repacking, the same techniques desktop tools use. Document metadata is kept. ORGANIZE: Reorder, delete and rotate pages from a thumbnail grid. Rotation composes correctly with pages that were already rotated. PDF TO IMAGE: Export pages as JPEG at up to 600 DPI with selectable quality, up to 20 pages per export. PROTECT / UNLOCK: Lock a PDF with AES-256, the strongest encryption the PDF standard defines. Unlock removes a password you know or clears owner-only restrictions. The scanner runs on neural networks that ship inside the app and never leave it. The six PDF tools run on Paradoc's own extended build of the open-source PDFium engine, rewriting files at the byte level rather than re-rendering them, so text stays text and vectors stay vectors. PRIVATE BY ARCHITECTURE Paradoc makes no network requests. There is no server, so there is nothing to breach and nothing to retain. Your tax return, your contract, your passport scan: none of it needs to visit someone else's computer to be merged, shrunk or locked. The work happens where the file already is. Available in English, Hindi, Spanish, Chinese, Arabic, Portuguese, Russian and Hebrew, with full right-to-left layout.

Screenshots

OpenDocument Reader4 screens
Paradoc4 screens

Verdict

The call

The clearest difference is rating: Paradoc at 5.0 against OpenDocument Reader's 4.5. Paradoc also leads on ads (none vs shown) and update cadence (every 2 days vs every 3 weeks). OpenDocument Reader's advantage is ratings volume (908 vs 1) and device support (3 vs 1). On price and in-app purchases 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

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Paradoc holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: OpenDocument Reader has 908 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

OpenDocument Reader ships an update every 3 weeks, Paradoc every 2 days. The most recent releases landed on October 14, 2026 and October 8, 2026 respectively.

Scorecard7 real differences · 3 level
OpenDocument Reader versus Paradoc: the parameters behind the verdict, then further details
ParameterOpenDocument ReaderParadoc
PriceFreeFree
Rating4.5 (908 ratings)5.0 (1 ratings) — better
Positive reviews30.1% of reviews—
Number of ratings908 — better1
Update frequencyEvery 3 weeksEvery 2 days — better
AdsYesNo — better
In-app purchasesNoNo
MonetizationAd-supportedFree — better
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.0 — better17.0
Further details — not scored
Size11 MB108 MB
Age rating4+4+
DeveloperStefl und Taschauer OGVaibhav Teli

Customer experience

OpenDocument Reader

All ratings908 ratings
Positive86.9%
Neutral5.4%
Negative7.7%
Written reviews83 reviews
Positive30.1%
Neutral7.2%
Negative62.7%

Paradoc

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

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

Paradoc

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

OpenDocument Reader

No in-app purchases

None

Paradoc

No in-app purchases

Questions

Is OpenDocument Reader free?
OpenDocument Reader is free to download, with no in-app purchases.
Is Paradoc free?
Paradoc is free to download, with no in-app purchases.
Which has better reviews, OpenDocument Reader or Paradoc?
Paradoc is rated higher. OpenDocument Reader averages 4.5 out of 5 from 908 ratings, while Paradoc averages 5.0 from 1 ratings.
Do OpenDocument Reader or Paradoc have ads?
OpenDocument Reader shows ads; Paradoc does not.
Which is updated more often, OpenDocument Reader or Paradoc?
OpenDocument Reader ships an update every 3 weeks, and Paradoc every 2 days. Most recently, OpenDocument Reader was updated on October 14, 2026 and Paradoc on October 8, 2026.

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