Comparison

The Image Compressor vs PDF Converter

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

Head to head
About

The Image Compressor

Reduce photo file sizes to save storage and share images faster. This tool offers smart compression algorithms to significantly decrease file size while preserving image quality. It allows for batch processing and provides adjustable quality settings for optimal results.

Highlights
  • Smart compression algorithms
  • Batch compress multiple photos
  • Adjustable compression quality
  • Preview compression results
  • Clean and intuitive interface
  • Local compression, no internet required
Features
Read full description

Easily compress photos, save storage space, and share quickly without lag. A professional image compression tool that helps you effortlessly solve the problem of photos taking up too much space. Through intelligent compression algorithms, it significantly reduces file size while maintaining image quality, helping you save valuable storage space. [Key Features] • Smart Compression - Batch compress multiple photos - Automatic optimization of compression parameters - Fast and efficient, saving time • Quality Control - Adjustable compression quality - Preview compression results - Clear before and after comparison • Easy to Use - Clean and intuitive interface - Simple and quick operation - Direct photo library selection • Safe and Reliable - Local compression, no internet required - Privacy protection guaranteed - Option to keep original photos [Use Cases] • Compress photos before sharing on social media • Reduce phone storage usage • Batch process large numbers of photos • Optimize images before creating digital albums [Why Choose Us] 1. High Compression Efficiency: Reduce file size by 50%-90% 2. Quality Assured: Smart balance between compression ratio and image quality 3. Simple Operation: No complex settings, one-click compression 4. Completely Free: Core features free to use, no ads Download Image Compressor and make your photos both space-saving and high-quality! [Technical Requirements] System Requirements: iOS 13.0 or later Languages: English, Simplified Chinese Information about the auto-renewal of subscription: - Payment will be charged to iTunes Account at confirmation of purchase; – Subscriptions are billed weekly, monthly, quarterly, or annually at the rate based on the subscription plan - Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period; - The account will be charged for renewal within 24-hours before the end of the current period. The cost depends on the selected plan; - Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user’s Account Settings after purchase; Terms of Use:https://docs.qq.com/doc/DRXBIWFh1ZnFLZE1h Privacy policy: https://www.freeprivacypolicy.com/live/57afbbf7-d3e3-4fc3-9432-0d1509669e5a If you have any questions or suggestions on how we can improve this app, please don’t hesitate to contact us at img_comp@outlook.com.

About

PDF Converter

Edit, sign, and scan documents with this powerful PDF tool. Easily import, read, annotate, and fill out PDF files. Convert physical documents into digital PDFs with a few taps.

Highlights
  • Read and view PDF files
  • Annotate and highlight text
  • Sign and fill PDF forms
  • Scan physical documents to PDF
  • Edit document colors and perspective
  • Search and zoom within documents
Features
Read full description

Use app to edit or sign documents. Easily import PDF files into the app to read, annotate, edit, and share them. You can also scan physical documents and convert them into PDFs with just a few taps. Essential PDF Features: - Instantly open and view PDF files - Search within documents, scroll smoothly, and zoom in or out - Adjust document perspective - Modify colors - Use auto-cropping tools for clean scans Annotate PDFs with Ease: - Add comments using sticky notes and drawing tools - Highlight text and make annotations with a variety of tools - View and reply to comments through the annotation panel Sign and Fill Forms: - Quickly complete PDF forms by typing directly into fields - Sign documents using your finger or Apple Pencil All files are stored locally on your device — they’re not accessible to us or any third parties. You can easily share your PDFs using the export feature. Subscription Information: - Payment. Charges apply to your iTunes Account at purchase confirmation. - Auto-Renewal. Subscriptions renew automatically unless canceled at least 24 hours before the current period ends. - Renewal Charges. Your account will be charged for renewal within 24 hours prior to the end of the current period, based on the selected plan. - Manage Your Subscription. Go to your Account Settings after purchase to handle auto-renewal and other preferences. Privacy Policy:https://telegra.ph/Privacy-Policy-04-18-64 Terms Of Use: https://telegra.ph/Terms-of-Use-04-18-3

Screenshots

The Image Compressor3 screens
PDF Converter4 screens

Verdict

The call

The Image Compressor and PDF Converter both sit at 4.3 stars, but that hides the real split: 100% of The Image Compressor's written reviews are positive against 0% of PDF Converter's. On price, rating, ratings volume and update cadence 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. The Image Compressor sells 3 in-app purchases, starting at $4.99 per 7 days and PDF Converter sells 3 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.3 for The Image Compressor against 4.4 for PDF Converter. Both are backed by a comparable volume of ratings — 20 and 34 respectively. Written reviews are what separate them: 100% of The Image Compressor's written reviews are positive against 0% of PDF Converter's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 days. The most recent releases landed on September 30, 2026 and July 8, 2026 respectively.

Scorecard1 real difference · 9 level
The Image Compressor versus PDF Converter: the parameters behind the verdict, then further details
ParameterThe Image CompressorPDF Converter
PriceFreeFree
Rating4.3 (20 ratings)4.4 (34 ratings) — better
Positive reviews100.0% of reviews — better0.0% of reviews
Number of ratings2034 — better
Update frequencyEvery 2 daysEvery 2 days
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.0 — better16.0
Further details — not scored
Size3 MB30 MB
Age rating4+4+
DeveloperXiaoQi Inc.DONNA REAHLEEN FREEMAN

Customer experience

The Image Compressor

All ratings20 ratings
Positive80.0%
Neutral5.0%
Negative15.0%
Written reviews20 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

PDF Converter

All ratings34 ratings
Positive79.4%
Neutral11.8%
Negative8.8%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

3 purchases

The Image Compressor

Subscriptions2
  • Weekly Pro3 Days trial$4.997 Days
  • Weekly Plan3 Days trial$6.997 Days
One-time1
  • Lifetime Pro$17.99
3 purchases

PDF Converter

Subscriptions3
  • Weekly3 Days trial$6.997 Days
  • Monthly$19.991 Month
  • Yearly$49.991 Year

Questions

Is The Image Compressor free?
The Image Compressor is free to download, with in-app purchases available.
Is PDF Converter free?
PDF Converter is free to download, with in-app purchases available.
Which has better reviews, The Image Compressor or PDF Converter?
PDF Converter is rated higher. The Image Compressor averages 4.3 out of 5 from 20 ratings, while PDF Converter averages 4.4 from 34 ratings.
Do The Image Compressor or PDF Converter have ads?
Neither The Image Compressor nor PDF Converter shows ads.
Which is updated more often, The Image Compressor or PDF Converter?
The Image Compressor ships an update every 2 days, and PDF Converter every 2 days. Most recently, The Image Compressor was updated on September 30, 2026 and PDF Converter on July 8, 2026.

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