Comparison

Idea Think vs PDF Editor for iPhone

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

Head to head
About

Idea Think

Capture, organize, and visualize your thoughts with a mind mapping tool. Branch ideas naturally, search your entire library, and export your thinking as PDFs. Keep your ideas private and offline.

Highlights
  • Capture ideas in one tap
  • Unlimited branching
  • Interactive Tree Map view
  • Search by text or tag
  • Export as PDF
  • Private and offline storage
Features
Read full description

Capture ideas fast, branch them naturally, and organise everything offline. Idea Think turns scattered thoughts into a clear mind map you can search, tag, pin, visualise, and export whenever inspiration strikes. Whether you are planning a project, collecting insights, outlining content, or saving a passing idea before it disappears, Idea Think gives every thought a place to grow. CORE FEATURES - Capture ideas in one tap - Grow unlimited branches from any idea - View your structure in an interactive Tree Map - Search by text or tag across your whole library - Pin and tag important ideas for quick access - Export any idea tree as a clean PDF - Use daily reminders to build a thinking habit - Keep everything private and fully offline FAST CAPTURE Type a thought and hit send. No folders, no setup, no friction. New ideas land in your Inbox first, so you can capture now and organise later. NATURAL BRANCHING Tap any idea to drill deeper and add child branches. Start from one seed and grow it into a full mind tree as your thinking expands. VISUAL THINKING Use Tree Map view to see your idea structure at a glance. Pinch, zoom, and pan through your thinking visually. Long-press any node to edit, move, or delete. SEARCH AND ORGANISE Find any idea quickly with text or tag search. Filter by Top Level, Seedbed, Recent, Most Branched, or Deep Ideas. Pin the ideas you want to keep in focus. EXPORT AND SHARE Turn any idea tree into a beautifully formatted PDF. Share it with your team, send it to yourself, or archive your thinking for later. PRIVATE AND OFFLINE Everything stays on your device. No account. No cloud. No forced sync. Light and Dark Mode are both supported, with six accent colours to personalise your trees. FREE TO USE Idea Think is free to download and use. The app is supported by ads, which help us keep it updated and improving. Available in English, Japanese, Traditional Chinese, and Simplified Chinese.

About

PDF Editor for iPhone

Read full description

Our application is a user-friendly PDF editor designed to help you edit, annotate, and manage PDF documents with ease. Whether you're working, studying, or handling everyday paperwork, our app provides convenient tools to make working with PDF files simpler and more efficient. Key Features - Add Text to PDFs โ€” insert text into your documents whenever needed. - Edit PDF Documents โ€” make changes to your files quickly and conveniently. - Highlight Important Details โ€” emphasize essential information for easy reference. - Fill Out PDF Forms โ€” complete digital forms and documents with ease. - Annotate Documents โ€” add notes, mark up pages, and highlight key sections. - Manage Your Files โ€” keep your PDF documents organized and accessible. - Quick Document Access โ€” open and work with your files whenever you need them. Designed for Everyday Use Our application is suitable for students, professionals, and anyone who regularly works with digital documents. Use it to manage contracts, complete forms, review reports, handle invoices, organize study materials, and work with important files. Our application helps you handle PDF documents more conveniently, stay organized, and get your work done with less effort. Subscription Information The app offers auto-renewable subscriptions and a one-time Lifetime purchase. Available options include: Weekly subscription โ€” $4.99 USD Monthly subscription โ€” $12.99 USD Yearly subscription โ€” $39.99 USD Lifetime purchase โ€” $59.99 USD Subscription payments are charged to your Apple ID account upon confirmation of purchase. Subscriptions automatically renew unless canceled at least 24 hours before the end of the current billing period. You can manage or cancel your subscription at any time through your device settings. Privacy Policy: https://docs.google.com/document/d/1-AjgioupcQAID8g0rDThSbTt3VG4ha8PbID9HOPa9LY/edit?tab=t.0 Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Idea Think4 screens
PDF Editor for iPhone4 screens

Verdict

The call

The clearest difference is update cadence: Idea Think at every 6 days against PDF Editor for iPhone's monthly. On price, ads, in-app purchases and device support there is nothing between them.

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Idea Think sells 1 one-off in-app purchase and PDF Editor for iPhone sells 5 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Idea Think ships an update every 6 days, PDF Editor for iPhone monthly. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

Scorecard1 real difference ยท 7 level
Idea Think versus PDF Editor for iPhone: the parameters behind the verdict, then further details
ParameterIdea ThinkPDF Editor for iPhone
PriceFreeFree
Positive reviews100.0% of reviewsโ€”
Update frequencyEvery 6 days โ€” betterMonthly
AdsNoNo
In-app purchasesYesYes
MonetizationFreeโ€”
DevicesiPhone, iPodiPhone, iPad, iPod โ€” better
Requires iOS15.0 โ€” better15.5
Further details โ€” not scored
Size28 MB107 MB
Age rating4+4+
DeveloperMan Chi CHoiEXERCISE RX LLC

In-app purchases

1 purchases

Idea Think

One-time1
  • IdeaThinkPro$1.99
5 purchases

PDF Editor for iPhone

Subscriptions4
  • Weekly-Trial3 Days trial$4.997 Days
  • Weekly$4.997 Days
  • Monthly$12.991 Month
Show 1 more
  • Yearly$39.991 Year
One-time1
  • Lifetime$59.99

Questions

Is Idea Think free?
Idea Think is free to download, with in-app purchases available.
Is PDF Editor for iPhone free?
PDF Editor for iPhone is free to download, with in-app purchases available.
Do Idea Think or PDF Editor for iPhone have ads?
Neither Idea Think nor PDF Editor for iPhone shows ads.
Which is updated more often, Idea Think or PDF Editor for iPhone?
Idea Think ships an update every 6 days, and PDF Editor for iPhone monthly. Most recently, Idea Think was updated on October 24, 2026 and PDF Editor for iPhone on October 28, 2026.

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