Tree vs Doc Reader
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Tree
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Headline: Your life needs an index. Tree adopts a minimal hierarchy to map your complex personal life into lightweight metadata. Stop trying to remember everythingβuse Tree to remember "how to find everything." Core Highlights: Metadata Mindset: Manage your life like clean code. Every node is a gateway to deeper information, condensing infinite complexity into an orderly directory. Dual-View Design: Canvas Mode: A God's-eye view. Zoom and pan on an infinite canvas to perceive the grand structure of your knowledge. Card Mode: Focus on the "now." Dive deep into specific branches and eliminate all external noise. Intuitive Interaction: Tap to expand, long-press for menus, and drag to reorganize. Every gesture is designed for pure intuition. Data Sovereignty: Markdown import/export with plain text storage. Your data always belongs to you. Why Tree? Cognitive Alignment: The human brain is naturally wired for hierarchy. Tree syncs with your innate cognitive patterns. The Ultimate Index: From root to leaf, our efficient retrieval logic guides you directly to your lifeβs milestones. Monochrome Aesthetics: Stripped of distractions, leaving only space for your thoughts. "The simpler the index, the vaster the world you command."
Doc Reader
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Turn your PDFs and websites into a listening experience β in 41 languages. DocReader converts any PDF, website, or document into natural-sounding speech so you can absorb textbooks, research papers, lecture notes, and articles while commuting, exercising, or doing chores. Why students and academics love it: - Listen to any PDF from Safari, Mail, Files, or Google Drive - Natural-sounding voices in English, Spanish, French, German, Portuguese, Russian, Japanese, Chinese, Korean, Hindi, and Arabic - Adjustable speed from 0.5x to 2.0x β slow down for dense material or speed up for review - Keeps playing in the background β switch apps without losing your place 100% free. No catches: No subscriptions. No token limits. No "premium" tier. DocReader is completely free to use with no restrictions β today and always. Perfect for: - Reviewing lecture slides and course readings on your commute - Listening to research papers while at the gym - Turning long-form articles into audio during your morning routine - Making dense academic material easier to absorb through listening - Reading PDFs in your native language with a natural voice - Accessibility β hear any PDF read aloud with a natural voice Private by design: Everything runs on your device. Your documents never leave your phone. No accounts. No cloud processing. No data collection. How it works: 1. Open a PDF in DocReader from any app 2. Pick a voice β choose from multiple languages 3. Tap play 4. Listen
Screenshots
Verdict
The clearest difference is price: Doc Reader at Free against Tree's $0.99. On update cadence, 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
Doc Reader is free to download; Tree costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Tree ships an update every 8 days, Doc Reader weekly. The most recent releases landed on September 14, 2026 and September 18, 2026 respectively.
| Parameter | Tree | Doc Reader |
|---|---|---|
| Price | $0.99 | Free β better |
| Update frequency | Every 8 days | Weekly β better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.6 β better | 18.0 |
| Further details β not scored | ||
| Size | 4 MB | 651 MB |
| Age rating | 4+ | 4+ |
| Developer | η»ͺ ι | ETHAN SCOTT TROKIE |
In-app purchases
Tree
No in-app purchases
Doc Reader
No in-app purchases







