Comparison

DeftPDF Document Translator vs Daopen

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

Head to head
About

DeftPDF Document Translator

Instantly translate documents in various formats like PDF, Docx, and Txt into over 130 languages. This app preserves document layout and supports large files, including scanned PDFs using OCR technology. No registration or watermarks are required.

Highlights
  • Translate 130+ languages
  • Supports PDF, Docx, Pptx, Xlsx, Txt, Html
  • Preserves document layout
  • OCR for scanned PDFs
  • Large file support (500+ pages)
  • No registration required
  • No watermarks
Features
Read full description

Translate PDF, DOCX, PPTX, XLSX, TXT, and HTML files into 137 languages in seconds. DeftPDF helps preserve the original layout of your document, so your translated file stays easy to read and share. Key features: • Translate PDF, DOCX, PPTX, XLSX, TXT, and HTML files • Support for 137 languages • Preserve document layout and formatting as much as possible • Translate scanned PDFs with built-in OCR • No DeftPDF account required • No watermark on translated files • Keep files private with automatic deletion after 5 hours Additional information: • Translation requires payment • No subscription required • Pricing varies by region • Supports up to 200 billable pages per document

About

Daopen

Features
Read full description

Daopen opens the documents other readers give up on - and converts them to PDF. HWP to PDF, ODT to PDF, Pages to PDF, right on your iPhone. No upload, no account, no subscription. FORMATS OTHER READERS REFUSE - OpenDocument - ODT, ODS and ODP from LibreOffice and OpenOffice. Tables, images and bullet lists stay intact. - Apple - Pages and Keynote with their full text (and Pages to PDF), Numbers tables with values, dates and merged cells. - Hangul - HWP and HWPX, the Korean office format, including old HWP 3.x files from before Hangul 97. - Old Office files - Word .doc, Excel .xls and .xlsb, PowerPoint .ppt, and RTF. SIGNED FILES, E-INVOICES AND EMAILS - .p7m signed files and Italian e-invoices (fattura elettronica, FatturaPA) - opened and summarised - .asice, .bdoc, .edoc, .ddoc signature containers - see the documents inside - .xsig and .xades signatures, Spanish FacturaE invoices - .zfo data box messages (Czech datová schránka) with their attachments - .eml emails and Outlook .msg files - body and attachments - Chinese OFD documents - text view AND EVERYTHING ORDINARY - PDF - Word (.docx) - Excel (.xlsx) - number and date formats, frozen headers, pinch to zoom - PowerPoint (.pptx) - Plain text (.txt) IT LOOKS INSIDE THE FILE, NOT AT THE NAME A file with the wrong extension still opens correctly. And when a format really cannot be opened, Daopen says so plainly and hands the file to another app, instead of showing you an error you cannot act on. NO ADS WHILE YOU READ Other readers put a banner across the page you are trying to read. Daopen does not. The document screen is the document, edge to edge. No ad when you close a file, and no video ads. The free version shows a small banner on the file list, and a short full-screen ad when you open a document - at most every third file, never twice within a minute. A one-time purchase removes all ads for good. No subscription. EVERYTHING HAPPENS ON YOUR DEVICE Your files are never uploaded to a server. Daopen has no login, no cloud account and no sync. Open the app in airplane mode and it still works. CONVERT TO PDF WITHOUT UPLOADING - HWP to PDF, ODT to PDF, Pages to PDF, Word to PDF - any document to PDF - Document pages to images, saved straight to Photos - Text, Markdown or CSV out of Word, Excel, PowerPoint and Hangul files - Photos into a single PDF - useful for receipts and paperwork The conversion runs on your iPhone. Nothing is sent anywhere. ONLY THE FILES YOU CHOOSE Daopen opens only the files you pick in the Files app or share to it from another app. No contacts, no location, no analytics profile. Made by Mung Works.

Screenshots

DeftPDF Document Translator4 screens
Daopen4 screens

Verdict

The call

The clearest difference is ads: DeftPDF Document Translator at none against Daopen's shown. Daopen's advantage is update cadence (every 4 days vs every 10 days). On price, in-app purchases, device support and iOS requirement 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. DeftPDF Document Translator sells 20 one-off in-app purchases and Daopen sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

DeftPDF Document Translator ships an update every 10 days, Daopen every 4 days. The most recent releases landed on October 13, 2026 and October 19, 2026 respectively.

Scorecard2 real differences · 8 level
DeftPDF Document Translator versus Daopen: the parameters behind the verdict, then further details
ParameterDeftPDF Document TranslatorDaopen
PriceFreeFree
Rating3.0 (2 ratings) — better—
Positive reviews50.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 10 daysEvery 4 days — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.015.0
Further details — not scored
Size26 MB65 MB
Age rating4+4+
DeveloperSictec InfotechMeongmungi

In-app purchases

20 purchases

DeftPDF Document Translator

One-time20
  • Translate file$0.49
  • Translate file$0.99
  • Translate file$1.00
Show 17 more
  • Translate file$1.99
  • Translate file$2.99
  • Translate file$3.00
  • Translate file$3.99
  • Translate file$4.99
  • Translate file$5.99
  • Translate file$6.99
  • Translate file$7.99
  • Translate file$8.99
  • Translate file$9.99
  • Translate file$11.99
  • Translate file$14.99
  • Translate file$18.99
  • Translate file$449.99
  • Translate file$499.99
  • Translate file$599.99
  • Translate file$699.99
1 purchases

Daopen

One-time1
  • Remove Ads Forever$19.99

Questions

Is DeftPDF Document Translator free?
DeftPDF Document Translator is free to download, with in-app purchases available.
Is Daopen free?
Daopen is free to download, with in-app purchases available.
Do DeftPDF Document Translator or Daopen have ads?
Daopen shows ads; DeftPDF Document Translator does not.
Which is updated more often, DeftPDF Document Translator or Daopen?
DeftPDF Document Translator ships an update every 10 days, and Daopen every 4 days. Most recently, DeftPDF Document Translator was updated on October 13, 2026 and Daopen on October 19, 2026.

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