Norkta vs Tree
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Norkta
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Meet Norkta, the privacy-focused PDF powerhouse designed for efficiency. KEY FEATURES β’ Compress: Reduce file sizes significantly while maintaining quality. β’ Invert Colors: Two algorithms that transform standard PDFs for a comfortable Dark Mode reading experience. β’ Merge: Combine multiple documents into a single file in seconds. β’ Extract Text: Instantly grab text content from your PDFs for editing or sharing. WHY NORKTA? β’ 100% Local Processing: Your data stays on your device. No servers, no uploads. Simple, fast, and secure. β’ Clean and intuitive interface design that keep your process focused and efficient. Take control of your PDFs starting today!
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."
Screenshots
Verdict
The clearest difference is price: Norkta at Free against Tree's $0.99. Tree's advantage is update cadence (every 8 days vs every 3 months). On ads, in-app purchases, device support and iOS requirement 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
Norkta is free to download; Tree costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Norkta ships an update every 3 months, Tree every 8 days. The most recent releases landed on September 23, 2026 and September 14, 2026 respectively.
| Parameter | Norkta | Tree |
|---|---|---|
| Price | Free β better | $0.99 |
| Update frequency | Every 3 months | Every 8 days β better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, Mac | iPhone, iPad |
| Requires iOS | 18.6 | 17.6 β better |
| Further details β not scored | ||
| Size | 1 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Zixiang Zhang | η»ͺ ι |
In-app purchases
Norkta
No in-app purchases
Tree
No in-app purchases









