Comparison

PDF Tools vs Audio Compressor

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

Head to head
About

PDF Tools

This app offers a comprehensive suite of tools for managing PDF documents. Easily convert images to PDF, split and merge files, add watermarks, signatures, and compress documents. It provides a user-friendly interface for efficient document handling.

Highlights
  • Split and merge PDF files
  • Convert images to PDF
  • Add watermarks and signatures
  • Compress PDF size
  • Unlock secured PDFs
  • Extract and delete pages
  • Convert PDF to text/image
Features
Read full description

The Ultimate PDF Solution for Your Device Discover the simplicity and power of PDF App: Split, Merge & More, your all-in-one PDF converter and editor. Convert, merge, split, lock, unlock, compress, and more with just a few taps. Key Features: •⁠ ⁠Split PDF: Split a long detailed PDF into single-page PDFs without much effort. Select specific page ranges and get your desired pages in seconds. •⁠ ⁠Merge PDFs: Combine multiple PDF documents into a single file. Our PDF merger helps design a single-page PDF from different PDFs, eliminating the hassle of storing separate documents. •⁠ ⁠Delete Pages: Remove unwanted pages from your PDFs while merging or splitting them. Perfect for eliminating extra or unnecessary content. •⁠ ⁠Unlock PDFs: Easily unlock secured PDFs to split or merge them. •⁠ ⁠Watermark: Add text or image watermarks to protect your documents or give them a customized appearance. •⁠ ⁠Compress PDFs: Reduce the size of your PDFs for easier sharing and storage, whether you merge or split them. •⁠ ⁠Image to PDF Conversions: Convert PNG, JPEG, and HEIC images to PDF format. •⁠ ⁠PDF to Text: Convert PDF files to standard text quickly and easily. •⁠ ⁠PDF to Image Conversions: Convert your PDFs to PNG, JPEG, and HEIC formats. •⁠ ⁠Extract Pages: Select and extract specific pages from your PDF files. •⁠ ⁠Rotate Pages: Rotate individual pages or entire documents for better viewing. •⁠ ⁠Signature: Sign your PDF documents with ease. •⁠ ⁠Preview & Read PDFs: View and read your PDF files with a built-in reader. •⁠ ⁠Rename PDFs: Rename your PDF files for better organization. •⁠ ⁠Share PDFs: Share your PDFs directly from the app. •⁠ ⁠Dark & Light Mode Support: Enjoy a seamless user experience in both dark and light modes. •⁠ ⁠Face ID, Touch ID & Passcode Authentication: Secure your app with biometric and passcode authentication. Easy-to-Use Interface: 1.⁠ ⁠Select Your Tool: Choose the conversion or editing tool you need. 2.⁠ ⁠Add Your File: Upload your document or image from your device. 3.⁠ ⁠Convert or Edit: Perform your desired action with a simple tap. 4.⁠ ⁠Save & Share: Download the converted or edited file to your local storage or share it directly. 24/7 Customer Support: Our dedicated support team is available around the clock to assist you with any issues or questions. Download PDF App: Split, Merge & More Today! Streamline your document management with the most comprehensive PDF app available. Experience the convenience and efficiency of PDF App: Split, Merge & More on your iPhone, Mac, and iPad. About Premium Plan Billing: If you upgrade to the Premium plan, payment will be charged to your iTunes account. Your account will be charged for renewal within 24 hours prior to the end of the current period. You can choose to be billed monthly or yearly. You can turn off auto-renew in your Apple ID Account Settings at any time. Privacy Policy: https://appinferencesoftware.wordpress.com/privacy-policy/ Terms of use:https://appinferencesoftware.wordpress.com/terms-of-use/ Contact Us: For any questions or support, reach out to us at passwordmanagerteam@gmail.com

About

Audio Compressor

Easily reduce the size of audio files like MP3, M4A, AAC, and WAV without sacrificing quality. This app offers batch processing, preview options, and various compression settings to save space and share audio faster.

Highlights
  • Compress multiple audio files
  • Preview before and after compression
  • Adjust compression level and bitrate
  • Apply fade in/out effects
  • Mono/Stereo conversion
  • Volume normalization
  • Batch processing
Read full description

Say goodbye to large audio files and wasted space. Audio Compressor & MP3 Reducer makes it easy to compress MP3, M4A, AAC, and WAV files while preserving audio quality. What's New: - Audio frequency control for perfect compatibility - Mono/Stereo conversion to reduce file size - Volume normalization for consistent sound levels - Smooth fade in/out effects for a professional finish - Smart quality settings and flexible bitrate options - Batch processing with real-time progress tracking Key Features: - Compress multiple audio files at once - Preview before and after compression - Choose compression level and bit rate (128, 256, 384, 512 kbps) - Instantly view size savings before you save - Easy one-tap operation and simple interface - Save compressed audio in seconds How to Use: 1. Select your audio files (MP3, M4A, AAC, WAV) 2. Set your preferred compression and quality settings 3. Apply effects like fade, normalization, or mono/stereo conversion 4. Preview results 5. Save or share your compressed files Perfect for musicians, podcasters, students, and anyone who wants to save device space or share audio quickly. Your feedback is always welcome at sumansharmadeveloper@gmail.com. Update to the latest version of Audio Compressor now and experience smarter, easier audio compression!

Screenshots

PDF Tools4 screens
Audio Compressor4 screens

Verdict

The call

The clearest difference is review sentiment: PDF Tools at 100% against Audio Compressor's 0%. PDF Tools also leads on rating (5.0 vs 3.0) and ads (none vs shown). Audio Compressor's advantage is in-app purchases (none vs 3). On price, update cadence, 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. PDF Tools sells 3 in-app purchases, starting at $4.99 per month. Audio Compressor asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

PDF Tools holds the better App Store score, 5.0 against 3.0. That said, the two scores are not equally well evidenced: PDF Tools has 14 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 100% of PDF Tools's written reviews are positive against 0% of Audio Compressor's.

UpkeepUpdate frequency

PDF Tools ships an update every 6 days, Audio Compressor weekly. Both last shipped on October 30, 2026.

Scorecard6 real differences · 4 level
PDF Tools versus Audio Compressor: the parameters behind the verdict, then further details
ParameterPDF ToolsAudio Compressor
PriceFreeFree
Rating5.0 (14 ratings) — better3.0 (2 ratings)
Positive reviews100.0% of reviews — better0.0% of reviews
Number of ratings14 — better2
Update frequencyEvery 6 days — betterWeekly
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFreemiumAd-supported — better
DevicesiPhone, iPad, MaciPhone, iPad, iPod
Requires iOS16.015.6 — better
Further details — not scored
Size36 MB55 MB
Age rating4+4+
DeveloperVijay KaleSuman Sharma

Customer experience

PDF Tools

All ratings14 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews6 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Audio Compressor

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

3 purchases

PDF Tools

Subscriptions2
  • Premium (1 month)3 Days trial$4.991 Month
  • Premium (1 year)3 Days trial$14.991 Year
One-time1
  • Premium (Lifetime)$49.99
None

Audio Compressor

No in-app purchases

Questions

Is PDF Tools free?
PDF Tools is free to download, with in-app purchases available.
Is Audio Compressor free?
Audio Compressor is free to download, with no in-app purchases.
Which has better reviews, PDF Tools or Audio Compressor?
PDF Tools is rated higher. PDF Tools averages 5.0 out of 5 from 14 ratings, while Audio Compressor averages 3.0 from 2 ratings.
Do PDF Tools or Audio Compressor have ads?
Audio Compressor shows ads; PDF Tools does not.
Which is updated more often, PDF Tools or Audio Compressor?
PDF Tools ships an update every 6 days, and Audio Compressor weekly. Most recently, PDF Tools was updated on October 30, 2026 and Audio Compressor on October 30, 2026.

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