Comparison

Synthy vs PDF Editor・PDF File Converter

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

Head to head
About

Synthy

Transform documents, books, and web content into audio with advanced text-to-speech technology. Scan physical documents or import digital files and listen to them read aloud with natural-sounding AI voices. Adjust playback speed and enjoy background listening for a seamless audio experience.

Highlights
  • Scan and read documents
  • Text to speech with AI voices
  • Adjustable reading speed
  • Import files and web links
  • Background listening mode
  • Type and listen functionality
Features
Read full description

Introducing Synthy — Your Ultimate Audio Books & Reading App! Do you have a mountain of documents, books, or material to read but no time? Synthy is the perfect PDF reader, text to speech tool, and voice aloud reader to save your day! Simply scan and read, upload text, document or web-link and listen to any text aloud. Whether it’s book reading, articles, or newspapers, our app reads everything for you with natural TTS voices. Key Features of Synthy: Text to Speech & Voice Reader Transform any text into audio! Use your phone’s camera to scan and read books (PDF, EPUB, DOCX, etc.), and let Synthy read text aloud like a personal audio book reader. Perfect for multitasking or book reading on the go! Realistic AI Voices for Document Reader No more robotic sounds! Enjoy voice reader technology with lifelike voices. Whether for PDF read aloud, screen reader tasks, or reading apps, Synthy adapts to your style. Adjustable Speed Reading App Customize pacing for read aloud comfort. Speed up for quick reviews or slow down to savor content—ideal for audio books and document reader needs. Type & Listen with Voice Aloud Reader Need to read text aloud from notes? Type anything, and Synthy will turn text to voice instantly. Great for students and professionals! Import Files & Web Content Import PDFs, eBooks, or links—Synthy acts as a screen reader for all formats. Even online articles become audio books with our TTS! Background Mode Keep listening while your phone is locked. A must-have for book reading fans and voice reader enthusiasts! Why Choose Synthy? More than a PDF reader or text to speech tool, Synthy is your all-in-one voice aloud reader and audio book reader. Whether for scan and read convenience, read aloud flexibility, or document reader functionality. Book reading lovers Professionals needing PDF read aloud Anyone who wants a screen reader or voice reader to speak for me effortlessly! Privacy policy: https://speechie.app/privacy.html Terms of use: https://speechie.app/terms.html Support: • Email: support@speechie.app • FAQ: https://speechie.app/faq.html

About

PDF Editor・PDF File Converter

Easily scan, convert, edit, and manage your PDF documents. This all-in-one tool allows you to transform images to PDF, convert PDFs to Word, fill out forms, and add digital signatures.

Highlights
  • Edit text, fonts, and colors in PDFs
  • Convert images and documents to PDF
  • Scan paper documents into high-quality PDFs
  • Fill out and sign PDF forms
  • Merge multiple PDF files
  • Compress PDFs while maintaining quality
Features
Read full description

The all-in-one PDF editor and file converter to scan, convert, edit, and manage your documents in seconds. Whether for work, school, or personal projects, this app offers professional tools to handle PDFs effortlessly. WHO IT'S FOR Perfect for professionals, students, and anyone who needs to edit, convert, or manage PDF documents quickly and easily. WHAT YOU'LL GET PDF Editor: Edit text, fill out forms, and adjust your document’s font, size, and color in just a few taps. File Converter: Convert a wide variety of file types to and from PDF—perfect for converting image to PDF, JPG to PDF, photos to PDF, and even converting PDF to Word. PDF Scanner: Scan paper documents and instantly convert them into high-quality PDFs. PDF Filler: Fill out and sign PDF forms, customize text, and save your progress. PDF Editor and Rotator: Rotate, delete, or rearrange pages within your PDF files. Merge PDF Files: Combine multiple PDFs into one document for easy management. PDF Signer: Add your digital signature or watermark to any PDF document for security and authenticity. PDF Compressor: Compress large PDFs while maintaining visual quality, ideal for email sharing. HOW IT WORKS 1. Convert files to PDF, including JPG to PDF, photos to PDF, and PDF to Word, with just a tap. 2. Scan paper documents and instantly turn them into high-quality PDFs. 3. Edit, fill out forms, rotate, delete, and sign PDFs with ease. KEY FEATURES PDF Editor: Effortlessly edit PDFs—fill out forms, change text, and adjust document design. File Converter: Convert a variety of file types to PDF with one tap, including JPG to PDF, image to PDF, photos to PDF, and convert PDF to Word. PDF Scanner: Instantly scan paper documents and turn them into high-quality PDFs with just a photo. PDF Filler: Complete forms and save your data within your PDFs for quick and easy document management. PDF Signer: Secure your documents by adding your signature or watermark, ensuring authenticity and privacy. Compress PDFs: Reduce file sizes without sacrificing quality, making PDFs easier to share. Rotate, Delete, and Merge PDFs: Organize and edit your PDF pages easily, combining or removing pages as needed. PROOF & OUTCOMES Thousands of users rely on this all-in-one PDF solution for seamless document editing, conversion, scanning, and signing. Whether you’re managing work documents or personal forms, this app delivers fast, reliable results. FAQ Q: How do I convert my files to PDF? A: Simply choose your file (JPG, image, Word, etc.), and the app will convert it into PDF format instantly. You can also convert PDF to Word with ease. Q: Can I sign PDFs with this app? A: Yes, the app allows you to digitally sign your PDF documents and add your signature to any page. Q: Can I scan paper documents into PDFs? A: Yes, just take a photo of your paper document, and it will be converted to a PDF automatically. Q: How do I fill out PDF forms? A: Use the PDF filler feature to complete forms, adjust text, and save your work directly in the document. Q: How do I convert images like JPG to PDF? A: Simply upload your image or photo, and the app will quickly convert it into a high-quality PDF. GET STARTED NOW Start editing, converting, scanning, and signing PDFs today with the ultimate PDF editor and file converter! PRIVACY AND TERMS Privacy Policy: https://editor-pdf.app/privacy-policy/ Terms of Use: https://editor-pdf.app/terms-of-use/

Screenshots

Synthy4 screens
PDF Editor・PDF File Converter4 screens

Verdict

The call

The clearest difference is review sentiment: Synthy at 81% against PDF Editor・PDF File Converter's 18%. PDF Editor・PDF File Converter's advantage is rating (4.7 vs 4.2). On price, ratings volume, update cadence and ads 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. Synthy sells 7 in-app purchases, starting at $4.99 per 7 days and PDF Editor・PDF File Converter sells 10 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

PDF Editor・PDF File Converter holds the better App Store score, 4.7 against 4.2. Both are backed by a comparable volume of ratings — 385 and 154 respectively. Written reviews complicate that: 81% of Synthy's written reviews are positive against 18% of PDF Editor・PDF File Converter's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Synthy ships an update monthly, PDF Editor・PDF File Converter every 3 weeks. Both last shipped on November 3, 2026.

Scorecard2 real differences · 8 level
Synthy versus PDF Editor・PDF File Converter: the parameters behind the verdict, then further details
ParameterSynthyPDF Editor・PDF File Converter
PriceFreeFree
Rating4.2 (385 ratings)4.7 (154 ratings) — better
Positive reviews81.3% of reviews — better18.2% of reviews
Number of ratings385 — better154
Update frequencyMonthlyEvery 3 weeks — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhoneiPhone
Requires iOS16.6 — better17.2
Further details — not scored
Size213 MB242 MB
Age rating4+4+
DeveloperDating onlain, oooVISARGERD, S.L.

Customer experience

Synthy

All ratings384 ratings
Positive81.0%
Neutral2.6%
Negative16.4%
Written reviews300 reviews
Positive81.3%
Neutral3.7%
Negative15.0%

PDF Editor・PDF File Converter

All ratings152 ratings
Positive94.1%
Neutral0.7%
Negative5.3%
Written reviews11 reviews
Positive18.2%
Neutral0.0%
Negative81.8%

Bugs and requests

Synthy

Reported bugs

4 issues
  • Scanning issues with page breaks
  • Playback pauses at paragraph ends
  • Inconsistent text recognition
  • Subscription cancellation problems

Requested features

5 requests
  • Highlight and annotate text
  • Background playback with screen lock
  • More language and voice options
  • Improved OCR accuracy
  • Easier file management and organization

PDF Editor・PDF File Converter

Not enough reviews yet to summarise bugs or requests.

In-app purchases

7 purchases

Synthy

Subscriptions7
  • Synthy Scan & Read Premium$4.997 Days
  • Endless Listening with Synthy$5.991 Month
  • Endless Listening with Synthy$9.991 Month
Show 4 more
  • Endless Listening with Synthy3 Days trial$12.991 Month
  • Three months$34.993 Months
  • 6 month premium3 Days trial$49.996 Months
  • Synthy Premium3 Days trial$79.991 Year
10 purchases

PDF Editor・PDF File Converter

Subscriptions10
  • Week$3.997 Days
  • 1 Week Plan - 3 days free3 Days trial$5.997 Days
  • Sign documents3 Days trial$5.997 Days
Show 7 more
  • 1 Week Plan$6.997 Days
  • document editor$6.997 Days
  • Weekly subscription3 Days trial$9.997 Days
  • pdf viewer$12.991 Month
  • Annual subscription7 Days trial$39.991 Year
  • 1 Year Plan$39.991 Year
  • pdf editor free$39.991 Year

Questions

Is Synthy free?
Synthy is free to download, with in-app purchases available.
Is PDF Editor・PDF File Converter free?
PDF Editor・PDF File Converter is free to download, with in-app purchases available.
Which has better reviews, Synthy or PDF Editor・PDF File Converter?
PDF Editor・PDF File Converter is rated higher. Synthy averages 4.2 out of 5 from 385 ratings, while PDF Editor・PDF File Converter averages 4.7 from 154 ratings.
Do Synthy or PDF Editor・PDF File Converter have ads?
Neither Synthy nor PDF Editor・PDF File Converter shows ads.
Which is updated more often, Synthy or PDF Editor・PDF File Converter?
Synthy ships an update monthly, and PDF Editor・PDF File Converter every 3 weeks. Most recently, Synthy was updated on November 3, 2026 and PDF Editor・PDF File Converter on November 3, 2026.

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