Comparison

Top Scanner vs PDF Compressor

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

Head to head
About

Top Scanner

This app allows you to scan documents, extract text, edit PDFs, and add electronic signatures. It offers features like auto border detection, image enhancement, and cloud backup for your scanned files.

Highlights
  • Document scanning
  • Image text extraction and recognition (OCR)
  • PDF content editing
  • PDF splitting and merging
  • Electronic signatures
  • Auto border detection
  • Cloud backup
Features
Read full description

Top Scanner is an intelligent scanning software that integrates functions such as document scanning, image text extraction and recognition, PDF content editing, PDF splitting and merging, and electronic signatures. TOP SCANNER FEATURES: + Scan documents Top Scanner scans any type of documents, ranging from a receipt to multiple pages book. + Export to PDF file All scanned documents are exported as industry-standard PDF file. You can add new pages or delete existed pages within the PDF file. + Email scanned documents Just scan any documents and tap "Send" button. + Extremely Fast Top Scanner is optimized to run very fast. + Multiple editing support scanned document Top Scanner support a lot of image editing options so you can make the scanned images as easy to read as possible. + Scans are saved to your device as images or PDFs. TopScanner is a simple scanner with a high quality PDF output. 1. Scan documents, receipts and business cards 2. Auto detect borders 3. Fine tune the image with many filters to reach perfection 4. Easily manage your documents 5. With a high quality PDF or JPEG output. 6. Automatically upload and back up files. * There are two options for the current subscription service: * US $ 3.99 per month will be automatically charged by Apple Store every month. * $ 29.99 per year will be automatically charged by Apple Store every year. * Once confirmed to purchase a subscription product, (if there is a trial period, after the trial period expires), a fee will be charged immediately, * If you need to cancel the subscription service, please be sure to cancel the subscription before the next cycle. The current subscription cycle cannot be cancelled. * Unsubscribe, go to the Apple Store subscription item to find our application, click Cancel Subscription, and you will not be charged again in the next cycle. Top Scanner - it's free - try it now! If you like Top scanner or have any other comments, please take a moment to write us a comment, or simply email us at topscanner@tongsoftinfo.com , which will help us improve our products and give you a better experience.

About

PDF Compressor

Reduce the size of your PDF documents with this easy-to-use tool. Select your file, choose the desired output quality, and compress your PDFs with a single tap. Save disk space and speed up uploads and downloads.

Highlights
  • Compress PDF files
  • Reduce PDF file size
  • Select output PDF quality
  • Easy-to-use interface
  • Single-tap compression
Features
Read full description

If you want to reduce your PDF file size, save your disk space back and faster on uploads and downloads, ... then let PDF Compressor - Compress PDF File app help you. You can easily compress your PDF files right on your device, with just one tap to select your file Select quality of output PDF to reduce file size PDF. PDF Compressor is a tool to compress PDF documents to reduce PDF file size. Compress PDF files allows you to select heavy PDF files to reduce their size. PDF compressor will simply reduce pdf file size with a single tap. PDF Compressor is free and the best tool to reduce PDF file size. Do download this compressor app and tell us more about how we can improve it. Compressing PDF file size makes it possible for anyone to reduce your PDF document size, especially useful for those PDF files with many scan graphics and photos. Compressed PDF documents require less disk space for storage and faster uploads and downloads save transmission time and cost. This app gives you access to compression options to help you to reduce PDF file size without compromising the document's integrity. Compress PDF File rewrites the entire PDF documents using selected compression options as efficiently as possible. Some PDF documents might not get compressed, because the PDF documents might be already compressed or have nothing much to compress. With our simple and easy-to-use app, you can compress/reduce pdf file sizes using your IOS device. Compress PDF file size has the following features: - Very smart and easy-to-use PDF compressor. - Compress PDF files to reduce PDF file size.

Screenshots

Top Scanner4 screens
PDF Compressor3 screens

Verdict

The call

The clearest difference is in-app purchases: PDF Compressor at none against Top Scanner's 4. PDF Compressor also leads on ratings volume (813 vs 8). Top Scanner's advantage is rating (5.0 vs 4.6) and iOS requirement (13.0 vs 15.0). On price, update cadence, ads and device support 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. Top Scanner sells 4 in-app purchases, starting at $3.99 per month. PDF Compressor asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Top Scanner holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: PDF Compressor has 813 ratings behind it against 8, so its average is the more settled of the two.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 5, 2026 and October 17, 2026 respectively.

Scorecard5 real differences · 5 level
Top Scanner versus PDF Compressor: the parameters behind the verdict, then further details
ParameterTop ScannerPDF Compressor
PriceFreeFree
Rating5.0 (8 ratings) — better4.6 (813 ratings)
Positive reviews—26.0% of reviews
Number of ratings8813 — better
Update frequencyEvery 2 monthsEvery 2 months
AdsYesYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesAd-supported — better
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS13.0 — better15.0
Further details — not scored
Size154 MB11 MB
Age rating4+4+
DeveloperTongSoft Information Co., Ltd.Vishalbhai Vaghasiya

Customer experience

Top Scanner

All ratings8 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

PDF Compressor

All ratings813 ratings
Positive90.5%
Neutral2.5%
Negative7.0%
Written reviews50 reviews
Positive26.0%
Neutral0.0%
Negative74.0%

Bugs and requests

Top Scanner

Not enough reviews yet to summarise bugs or requests.

PDF Compressor

Reported bugs

9 issues
  • App crashes on second compression attempt
  • File size increases instead of decreasing
  • App exits unexpectedly after compression
  • Compressed file unrecognizable or corrupted
  • Keyboard numbers display as blank
Show 4 more
  • Slow compression times (5+ minutes for small files)
  • Unable to save or retrieve compressed files
  • Document pages expand instead of compress
  • App crashes on launch

Requested features

5 requests
  • Reduce or eliminate advertisements
  • Add compression quality/control settings
  • Batch file compression capability
  • Improved preview functionality for multiple documents
  • Better file naming conventions for compressed files

In-app purchases

4 purchases

Top Scanner

Subscriptions2
  • 1 month subscription$3.991 Month
  • 1 year subscription3 Days trial$29.991 Year
One-time2
  • OCR 200 Pages$2.99
  • OCR 1000 Pages$9.99
None

PDF Compressor

No in-app purchases

Questions

Is Top Scanner free?
Top Scanner is free to download, with in-app purchases available.
Is PDF Compressor free?
PDF Compressor is free to download, with no in-app purchases.
Which has better reviews, Top Scanner or PDF Compressor?
Top Scanner is rated higher. Top Scanner averages 5.0 out of 5 from 8 ratings, while PDF Compressor averages 4.6 from 813 ratings.
Do Top Scanner or PDF Compressor have ads?
Both Top Scanner and PDF Compressor show ads.
Which is updated more often, Top Scanner or PDF Compressor?
Top Scanner ships an update every 2 months, and PDF Compressor every 2 months. Most recently, Top Scanner was updated on October 5, 2026 and PDF Compressor on October 17, 2026.

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