Comparison

PDF AI vs LuTask

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

Head to head
About

PDF AI

Features
Read full description

PDF AI transforms any PDF into powerful study materials using advanced AI. Whether you're a student, researcher, or professional, PDF AI helps you understand documents faster and study smarter. CHAT WITH YOUR PDFs Ask any question about your PDF and get instant, accurate answers with page references. The AI understands context across your entire document, so you can have natural conversations about complex topics. AI STUDY TOOLS Generate comprehensive study materials from any PDF with a single tap: - Summary: Concise overview with key points and page citations - Detailed Summary: In-depth analysis with headings, data, and conclusions - Study Notes: Organized bullet-point notes with key concepts - Flashcards: Interactive Q&A cards for active recall practice - Quiz: Multiple-choice questions with explanations to test your knowledge - Glossary: Key terms and definitions extracted from the document - Key Insights: The most important findings and takeaways MULTI-LANGUAGE SUPPORT Generate all AI content in 10 languages: English, Turkish, Spanish, French, German, Arabic, Chinese, Japanese, Korean, and Portuguese. OCR TEXT EXTRACTION Extract text from scanned PDFs and image-based documents using Apple Vision framework. Works offline with high accuracy. MULTI-DOCUMENT WORKSPACE Create workspaces to chat across multiple PDFs simultaneously. Perfect for research projects, exam prep, or comparing documents. PDF & IMAGE TOOLS A complete toolkit for document management: - PDF to JPG, Merge PDFs, Split PDF, Compress PDF, Rotate PDF - Image conversion: HEIC, PNG, JPG, WebP - Image resize, Images to PDF, TXT to PDF PRIVACY FIRST Your PDF files stay on your device. When you use AI features, only the text needed for your request is sent securely for processing, and we don't store your documents. SUBSCRIPTION INFORMATION PDF AI Premium unlocks AI chat with your PDFs, all AI study tools, PDF editing and signing. Subscription auto-renews unless cancelled at least 24 hours before the end of the current period. Payment will be charged to your iTunes Account at confirmation of purchase. Privacy Policy: https://pdfaiapp.github.io/privacy Terms of Use: https://pdfaiapp.github.io/terms

About

LuTask

Features
Read full description

LuTask is a beautifully simple way to plan your work and get things done β€” alone or with your team. Organize everything on a clean board with To‑Do, In Progress and Done. Drag tasks between columns, set priorities and due dates, and keep quick ideas in a dedicated Ad‑hoc list. WORK TOGETHER β€’ Share projects with teammates across accounts β€’ Admins hold full control and grant granular permissions β€” add tasks, delete, comment, invite β€’ Assign tasks, comment, and @mention people β€’ Built‑in chat to keep the conversation next to the work β€’ Get notified on mentions, messages and assignments EVERYWHERE YOU ARE β€’ Native on iPhone, iPad and Mac β€’ Apple Watch app and Home Screen widgets β€’ Light & dark mode, 10 languages SEE YOUR PROGRESS β€’ Personal and project statistics with clean charts Sign in with Apple, Google or email. Your data syncs securely in the cloud and you can permanently delete your account anytime from the app. LuTask Pro (optional subscription) unlocks unlimited shared projects, unlimited members and advanced statistics. Terms of Use (EULA): https://lunote.app/LuTask_Terms.html Privacy Policy: https://lunote.app/LuTask_Privacy.html

Screenshots

PDF AI4 screens
LuTask4 screens

Verdict

The call

The clearest difference is update cadence: LuTask at every 3 days against PDF AI's every 2 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. PDF AI sells 2 in-app purchases, starting at $4.99 per month and LuTask sells 1 in-app purchase, starting at $14.99 per year. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

PDF AI ships an update every 2 weeks, LuTask every 3 days. The most recent releases landed on November 13, 2026 and November 5, 2026 respectively.

Scorecard1 real difference Β· 5 level
PDF AI versus LuTask: the parameters behind the verdict, then further details
ParameterPDF AILuTask
PriceFreeFree
Update frequencyEvery 2 weeksEvery 3 days β€” better
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPadiPhone, iPad, Apple Watch β€” better
Requires iOS17.017.0
Further details β€” not scored
Size34 MB15 MB
Age rating4+4+
DeveloperYusuf Omer EremLu Apps LLC

In-app purchases

2 purchases

PDF AI

Subscriptions2
  • Premium Monthly$4.991 Month
  • Premium Yearly$29.991 Year
1 purchases

LuTask

Subscriptions1
  • LuTask Pro7 Days trial$14.991 Year

Questions

Is PDF AI free?
PDF AI is free to download, with in-app purchases available.
Is LuTask free?
LuTask is free to download, with in-app purchases available.
Do PDF AI or LuTask have ads?
Neither PDF AI nor LuTask shows ads.
Which is updated more often, PDF AI or LuTask?
PDF AI ships an update every 2 weeks, and LuTask every 3 days. Most recently, PDF AI was updated on November 13, 2026 and LuTask on November 5, 2026.

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