Comparison

PDF Tools vs ASO Tool

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

Head to head
About

PDF Tools

Easily merge, split, compress, and convert PDF files to images directly on your device. This app ensures your documents remain private and secure with offline processing. It's ideal for managing work, study, and everyday document needs.

Highlights
  • Merge multiple PDF files
  • Split PDFs by pages
  • Compress PDFs
  • Convert PDF to JPG/PNG
  • Fill PDF forms
  • Offline processing
  • Built-in file storage (Pro)
Features
Read full description

PDF Tools is a simple and fast way to work with PDF files on your iPhone. Merge, split, compress, and convert PDF documents to JPG or PNG in just a few taps. All processing happens directly on your device, so your files stay private and secure. No uploads, no tracking, and no internet connection required. FEATURES • Merge multiple PDF files into one • Split PDFs by pages or custom page ranges • Compress PDFs to reduce file size • Convert PDF files to JPG or PNG images • Fill existing PDF forms • Save or share files easily • Works fully offline PRO STORAGE Pro users get access to built-in file storage inside the app. You can save, organize, and manage PDFs you create or edit, keeping important documents available directly within PDF Tools for quick access. FREE VERSION The free version includes a limited number of PDF operations per day. PRO VERSION Upgrade to Pro for unlimited access to all features, no daily limits, and built-in file storage. Choose between a subscription or a one-time lifetime purchase. PRIVACY Your files never leave your device. All documents are processed locally, and we do not collect, store, or track any personal data. PDF Tools is perfect for work, study, and everyday document tasks. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

ASO Tool

This app assists developers and marketers in optimizing their App Store presence. It offers real-time tracking of keyword rankings, competitor analysis, and AI-powered discovery of new keyword opportunities to enhance app visibility.

Highlights
  • App Store keyword rank tracking
  • Competitor analysis
  • AI-powered keyword discovery
  • App visibility improvement
  • Real-time insights
Features
Read full description

ASO Tool - AI Keyword Tracker helps developers and marketers track App Store keyword rankings, analyze competitors, and discover new keyword opportunities using AI. Improve your App Store Optimization (ASO) strategy and grow your app visibility with real-time keyword rank tracking and intelligent insights.

Screenshots

PDF Tools4 screens
ASO Tool2 screens

Verdict

The call

The clearest difference is ads: PDF Tools at none against ASO Tool's shown. PDF Tools also leads on update cadence (every 5 days vs every 2 months). ASO Tool's advantage is ratings volume (6 vs 2) and iOS requirement (17 vs 26.2). On price, rating, 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. PDF Tools sells 3 in-app purchases, starting at $4.99 per month and ASO Tool sells 1 one-off in-app purchase. 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 — 5.0 for PDF Tools against 5.0 for ASO Tool. Both are backed by a comparable volume of ratings — 2 and 6 respectively.

UpkeepUpdate frequency

PDF Tools ships an update every 5 days, ASO Tool every 2 months. Both last shipped on October 24, 2026.

Scorecard4 real differences · 5 level
PDF Tools versus ASO Tool: the parameters behind the verdict, then further details
ParameterPDF ToolsASO Tool
PriceFreeFree
Rating5.0 (2 ratings)5.0 (6 ratings)
Number of ratings26 — better
Update frequencyEvery 5 days — betterEvery 2 months
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFreemiumFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad
Requires iOS26.217 — better
Further details — not scored
Size3 MB48 MB
Age rating4+4+
DeveloperYehor YurchenkoAn Banh

Customer experience

PDF Tools

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

ASO Tool

All ratings6 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

3 purchases

PDF Tools

Subscriptions2
  • PDF Pro Monthly$4.991 Month
  • PDF Pro Yearly$19.991 Year
One-time1
  • PDF Pro – Lifetime Access$39.99
1 purchases

ASO Tool

One-time1
  • Upgrade Premium$2.99

Questions

Is PDF Tools free?
PDF Tools is free to download, with in-app purchases available.
Is ASO Tool free?
ASO Tool is free to download, with in-app purchases available.
Which has better reviews, PDF Tools or ASO Tool?
PDF Tools and ASO Tool are both rated 5.0 out of 5 on the App Store, from 2 and 6 ratings respectively.
Do PDF Tools or ASO Tool have ads?
ASO Tool shows ads; PDF Tools does not.
Which is updated more often, PDF Tools or ASO Tool?
PDF Tools ships an update every 5 days, and ASO Tool every 2 months. Most recently, PDF Tools was updated on October 24, 2026 and ASO Tool on October 24, 2026.

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