Comparison

PDF Chef vs Daopen

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

Head to head
About

PDF Chef

Features
Read full description

PDF Chef helps you read, edit, merge, split, compress and sign PDFs on your device. Organize pages, add text and images, place a handwritten signature, add watermarks or page numbers, and protect PDFs with a password. Convert supported images and documents, and extract text. Results depend on the source file and the selected tool. Normal PDF processing runs on your device. Your documents are not uploaded to a PDF Chef server for processing. Offline tools remain available after their assets have loaded. PDF Chef does not require an account. Review your result before sharing or exporting it. On iOS, the first five successful jobs in each rolling seven-day allowance period are complete jobs that you can save, share and export. The period starts with the first successful job. After five jobs, processing and preview remain available, but saving, sharing and exporting require Pro until the allowance resets. Pro Monthly renews automatically until canceled. Pro Lifetime is a one-time purchase, not a subscription. Both options support Apple Family Sharing. Prices and purchase details appear in the app before you buy. Restore purchases from Settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

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. READ ALOUD (NEW) - Daopen reads your document aloud from the page you are on - PDF, HWP, Word, PowerPoint, ODT, Pages and more - 10 natural, high-quality AI voices, generated on your phone (one-time ~380 MB download; your text is never sent anywhere) - Speed 0.75x to 1.5x, previous/next sentence, and a sleep timer (15 minutes to 12 hours) - AI voice languages: Korean, English, Japanese, German, French, Spanish, Portuguese, Italian, Russian, Indonesian, Vietnamese and Turkish. Other languages use your phone's voice - Included in the one-time Remove Ads purchase. Reads while Daopen is open on screen 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. EDIT AND ANNOTATE - Long-press a paragraph in an HWP file, a cell in an Excel (.xlsx) or OpenDocument (.ods) sheet, or a text box in PowerPoint (.pptx) to edit it - Word (.docx) and OpenDocument text and slides (.odt, .odp): tap the pencil, then tap a paragraph to edit it - PDF: add pen, highlighter, text boxes and your signature on top of the page (the PDF's original text is not edited) - Your original file stays untouched - the edit is saved as a separate "_edited" copy - Documents with complex formatting may look slightly different after editing 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 datovΓ‘ schrΓ‘nka) 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 and unlocks read aloud. 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

PDF Chef4 screens
Daopen4 screens

Verdict

The call

The clearest difference is ads: PDF Chef at none against Daopen's shown. On price, update cadence, in-app purchases and device support there is nothing between them.

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

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. PDF Chef sells 2 in-app purchases, starting at $3.99 per month and Daopen sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

PDF Chef ships an update every 9 days, Daopen every 6 days. Both last shipped on November 10, 2026.

Scorecard1 real difference Β· 5 level
PDF Chef versus Daopen: the parameters behind the verdict, then further details
ParameterPDF ChefDaopen
PriceFreeFree
Update frequencyEvery 9 daysEvery 6 days β€” better
AdsNo β€” betterYes
In-app purchasesYesYes
DevicesiPhone, iPad β€” betteriPhone
Requires iOS17.416.0 β€” better
Further details β€” not scored
Size64 MB90 MB
Age rating4+4+
DeveloperDHANANJAY BABASAHEB BHOSALEMeongmungi

In-app purchases

2 purchases

PDF Chef

Subscriptions1
  • PDF Chef Pro Monthly$3.991 Month
One-time1
  • PDF Chef Pro Lifetime$49.00
1 purchases

Daopen

One-time1
  • Remove Ads Forever$5.99

Questions

Is PDF Chef free?
PDF Chef is free to download, with in-app purchases available.
Is Daopen free?
Daopen is free to download, with in-app purchases available.
Do PDF Chef or Daopen have ads?
Daopen shows ads; PDF Chef does not.
Which is updated more often, PDF Chef or Daopen?
PDF Chef ships an update every 9 days, and Daopen every 6 days. Most recently, PDF Chef was updated on November 10, 2026 and Daopen on November 10, 2026.

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