Comparison

HelloPDF vs PDF Hero

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

Head to head
About

HelloPDF

Easily convert multiple images into PDF documents with this tool. It offers features like background cleaning, high-definition output, and customizable PDF sizes. All conversions are processed locally for speed and security.

Highlights
  • Convert multiple pictures to PDF
  • Clear dark background function
  • Create high-definition PDFs
  • Set any PDF size
  • Fast and secure offline conversion
  • Manage and search saved PDFs
  • Share and print converted documents
Features
Read full description

HelloPDF converts images and PDFs both ways: scan documents, merge photos into a PDF, turn PDF pages back into images, clear grey backgrounds and lay out pages on A4 — all on your iPhone. Contracts, invoices, ID documents, class notes — just take a photo and get a clean, tidy PDF. — Features — · Image to PDF Pick several photos at once, long-press and drag to reorder, then generate one PDF. · Document Scan Point at the page: edges are detected automatically and skewed pages are straightened. · Image Cleanup Remove grey backgrounds in one tap and turn photos into print-ready black & white — darker text, whiter paper. · A4 Layout Fit 1, 2, 3 or 4 images on a page, side by side or stacked. Ready to print. · PDF to Image Export every PDF page as an image — easy to share or reuse. · Custom Page Size Standard A4 (595 × 842) by default, or set width and height yourself. · File Management All your PDFs in one place: search by name, preview, share, print or delete. — Use cases — · Contracts, invoices, ID documents: snap a photo and archive it, no more lost paperwork · Notes and course material: merge photos into one PDF and print it on A4 · Old files and photocopies: clear the grey background and make blurry pages readable again — About subscriptions — A subscription unlocks all features. Payment is charged to your iTunes account once you confirm the purchase. Subscriptions renew automatically within 24 hours before the current period ends; to stop renewal, turn off auto-renew in your account settings at least 24 hours before it ends. Privacy Policy: http://www.dazhuogroup.com/img2pdf/privacy_statement_en.php Terms of Use: http://www.dazhuogroup.com/img2pdf/terms_of_use_en.php

About

PDF Hero

Edit, create, and manage PDF documents on your mobile device. Annotate, fill forms, sign, and share files with ease. Offers advanced features like OCR and compression for enhanced document control.

Highlights
  • Create PDFs from scratch
  • Edit text and annotate documents
  • Fill and sign PDF forms
  • Convert images/documents to PDF
  • OCR for editable text
  • Compress and merge PDFs
  • Password-protect sensitive data
Features
Read full description

Looking for a convenient and easy-to-use PDF editor? View and edit PDF files on the go with PDF Hero! The app works on iPhone and iPad. PDF Hero helps you take control of your papers and run your business in the ever-changing digital world. Create and read PDFs, then annotate, edit, fill and sign forms, or share files. Manage paperwork hassle-free from anywhere – the office, remotely, or from home. There’s no need for printed copies when you can access and edit the docs you need, on the go – all in an app. Stay one step ahead when it comes to document management. CREATE & VIEW - Create PDFs from scratch. - Open and view any PDF file. - Zoom in and out while reading. - Search to find the necessary information using text search. - Read PDFs easier with Read Mode by creating bookmarks and navigating conveniently. EDIT & ANNOTATE - Edit text in your PDF files, fix typos, and correct paragraphs. - Add comments and annotations using text notes. - Write on PDFs with your finger or stylus. - Fill PDF forms. - Highlight key ideas and add shapes. - Insert images, crop, resize, or change the angle if necessary. MANAGE & STORE - Import files from your device or online storage services like iCloud and Dropbox. - Delete pages from a multi-page PDF document. - Share PDF files with or without annotations for further reading and commenting. - Print files right from your device. Level up with Premium features! PRO EDITING - Convert images and documents to PDF files. - Sign docs right on the screen of your device. - Add stamps to PDF documents. - Transform PDF files into editable text with OCR (Optical Character Recognition) technology. PRO MANAGEMENT - Compress PDFs and share them as ZIP files. - Manage PDF pages: add pages, rotate, and reorder them. - Share selected pages of a multi-page PDF file. - Merge two or more PDF pages into a single document. - Password-protect sensitive data. *To digitize printed copies and transform them into editable PDF scans, try our Scan Hero app! Subscription payments will be charged to your App Store account at confirmation of your purchase. Subscriptions will automatically renew and you will be charged unless auto-renew is turned off or unless you cancel at least 24 hours prior to the end of the current subscription or trial period. Any unused portion of a free trial period will be forfeited when you purchase a premium subscription during the free trial period. The cost of renewal depends on the Subscription Plan you choose. Subscriptions and auto-renewal may be managed by going to Account Settings after purchase or by contacting Customer Support. Privacy Policy: https://support.bendingspoons.com/privacy.html?app=1512973255 Terms of Service: https://support.bendingspoons.com/tos.html?app=1512973255 Got questions or suggestions? Please don’t hesitate to email us at pdfhero@bendingspoons.com

Screenshots

HelloPDF4 screens
PDF Hero4 screens

Verdict

The call

The clearest difference is update cadence: PDF Hero at every 3 weeks against HelloPDF's every 23 months. PDF Hero also leads on ratings volume (10K vs 18) and iOS requirement (14.0 vs 17.0). HelloPDF's advantage is rating (4.8 vs 4.6). On price, ads, in-app purchases and monetization model 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. HelloPDF sells 2 in-app purchases, starting at $1.99 per month and PDF Hero sells 10 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

HelloPDF holds the better App Store score, 4.8 against 4.6. That said, the two scores are not equally well evidenced: PDF Hero has 10K ratings behind it against 18, so its average is the more settled of the two.

UpkeepUpdate frequency

HelloPDF ships an update every 23 months, PDF Hero every 3 weeks. The most recent releases landed on November 3, 2026 and November 7, 2026 respectively.

Scorecard4 real differences · 6 level
HelloPDF versus PDF Hero: the parameters behind the verdict, then further details
ParameterHelloPDFPDF Hero
PriceFreeFree
Rating4.8 (18 ratings) — better4.6 (10K ratings)
Positive reviews—17.8% of reviews
Number of ratings1810K — better
Update frequencyEvery 23 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.014.0 — better
Further details — not scored
Size16 MB536 MB
Age rating4+4+
DeveloperShanghai Dazhuo Information Technology Co., Ltd.Mosaic S.r.l.

Customer experience

HelloPDF

All ratings18 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

PDF Hero

All ratings10,328 ratings
Positive90.4%
Neutral2.4%
Negative7.1%
Written reviews247 reviews
Positive17.8%
Neutral5.3%
Negative76.9%

Bugs and requests

HelloPDF

Not enough reviews yet to summarise bugs or requests.

PDF Hero

Reported bugs

4 issues
  • Text disappearing or jumping around during editing
  • Inability to save or transfer edited documents
  • App crashing or freezing during use
  • Incorrect rendering of PDF content

Requested features

4 requests
  • Improved text editing and manipulation
  • Better file management and organization
  • Seamless integration with other apps
  • Clearer subscription and cancellation policies

In-app purchases

2 purchases

HelloPDF

Subscriptions2
  • Monthly subscription3 Days trial$1.991 Month
  • Annual Subscription3 Days trial$10.491 Year
10 purchases

PDF Hero

Subscriptions10
  • Weekly Premium with Free Trial7 Days trial$2.997 Days
  • Weekly Premium$2.997 Days
  • Weekly Premium$5.997 Days
Show 7 more
  • Weekly Premium with Free Trial7 Days trial$5.997 Days
  • Weekly Sub with Free Trial7 Days trial$7.997 Days
  • Weekly Subscription$7.997 Days
  • Yearly with Free Trial7 Days trial$69.991 Year
  • Yearly Subscription$69.991 Year
  • Yearly Bundle$99.991 Year
  • Yearly Bundle with Free Trial7 Days trial$99.991 Year

Questions

Is HelloPDF free?
HelloPDF is free to download, with in-app purchases available.
Is PDF Hero free?
PDF Hero is free to download, with in-app purchases available.
Which has better reviews, HelloPDF or PDF Hero?
HelloPDF is rated higher. HelloPDF averages 4.8 out of 5 from 18 ratings, while PDF Hero averages 4.6 from 10K ratings.
Do HelloPDF or PDF Hero have ads?
Neither HelloPDF nor PDF Hero shows ads.
Which is updated more often, HelloPDF or PDF Hero?
HelloPDF ships an update every 23 months, and PDF Hero every 3 weeks. Most recently, HelloPDF was updated on November 3, 2026 and PDF Hero on November 7, 2026.

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