Ninja vs Note Weaver
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Ninja
This AI-powered assistant helps students and professionals by generating essays with real-time sources, transforming handwritten notes into study guides, and solving homework problems from photos. It also offers integrated document and presentation tools, with a choice of advanced AI models.
- Advanced essay writing with real-time sources
- Convert handwritten notes to study guides
- Image-based homework explanation and problem-solving
- Integrated document and presentation creation
- Choice of AI models (GPT-4, Claude, etc.)
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Introducing Ninja, the quintessential app that redefines your educational and professional experience with its unparalleled capabilities. Ninja is a comprehensive tool that elevates your work to new heights, tailor-made for students, professionals, and anyone in need of a powerful assistant. Key Features of Ninja: * Advanced Essay Functionality: Ninja stands out with its superior essay-writing features. Ninja integrates real-time sources, crafting essays that are not just well-written but also rich in content and references. * Supercharged Note-Taking: Transform your handwritten notes into high-quality, personalized guides. With Ninja, just take a picture of your notes, and the app converts them into textbook-quality material, customized to your learning style. * Image Understanding for Homework Help: Stuck on a math problem or a complex science question? Simply snap a photo of your homework, and Ninja's AI will not only explain it but also guide you through solving it. * All-in-One Document and Presentation Tool: Ninja combines document and slide creation into one seamless interface. Whether you're drafting a report or preparing a presentation, Ninja's integrated editors ensure a smooth, efficient workflow. * Choice of AI Models: Select from a range of AI models including NINJA-1, GPT-4, Perplexity, and Claude. Each model brings its unique strengths, from offering real-time information to enhancing creative output, ensuring you always have the best tool for the task. Ninja is more than an app; it's your personal AI-powered companion, designed to enhance your productivity, creativity, and learning. Embrace the future of work and education with Ninja. Terms of Use: https://www.workninja.com/terms-of-service.pdf Privacy Policy: https://www.workninja.com/privacy-policy.pdf
Note Weaver
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Note Weaver is both a Rich Text and a Markdown editor with a notes library to organize your notes. Note Weaver is designed for people who want a calm, capable writing space that still respects the private nature of personal notes, journals, technical material, research, and working drafts. You can write in rich text or Markdown, organize notes into folders, embed images, preview pages, and export documents, while keeping your library local-first. You will receive a license via email after starting a subscription. A single license enables you to synchronize up to five devices across Mac, iOS, among others (see website). No further purchase required. Authentication when using Note Weaver is performed once each day. If you go offline and Note Weaver cannot validate your license, you have a 30-day grace period, so you won't be locked out of your notes when visiting remote locations. From Version 1.0.3 on the Desktop versions, included in your subscription, you can now import notes from Bear, Obsidian, and OneNote, with auto-tagging to make organizing imported notes a breeze! Change History Version 1.1.0 (July 23, 2026) * Added authenticated local-network synchronization for devices on the same network, while preserving end-to-end encryption. * Note Weaver automatically falls back to the secure Fiction Loom relay when a direct local connection is unavailable. * Improved synchronization across multiple licensed devices, including more reliable change distribution, inventory verification, and library repair. * Updated backend components for better stability and performance. V1.0.5 (July 14, 2026) * Introduced a load-balanced synchronization relay architecture for improved reliability, capacity, and performance. * Added a verified, resumable onboarding process that gives newly added or reinstalled devices a complete copy of the note library and embedded assets. * Strengthened synchronization with inventory reconciliation, causal version tracking, improved multi-device convergence, and more accurate conflict detection. * Improved desktop background synchronization and made the desktop synchronization helper part of the standard setup. * Rebuilt the rich-text editor using Tiptap for more reliable rich-text and Markdown editing. * Significantly improved image handling, including drag-and-drop insertion, touch resizing, percentage-based sizing, inline images, page-edge anchoring, alignment, and Fit to Page Width. * Added OneNote import support on Windows, including imported-note tagging and color-assisted organization. * Improved Bear imports with hierarchical tag support, automatic folder and subfolder creation, and better imported-image sizing. * Added color-coded tags and folder highlighting to help organize imported and tagged notes. * Improved page layout, page breaks, text alignment, preview stability, and persistence of document-specific settings. * Reorganized Editor Settings and Page Settings, with additional fonts and improved support for Japanese, Chinese, Korean, and other Unicode text. * Improved dual-sidebar keyboard navigation, selection visibility, scrolling, mobile sizing, and multi-note movement. * Improved folder creation by supporting nested folders and preventing accidental duplicate folder names. * Added reliable restoration of deleted folders, their subfolders, and contained notes. * Improved conflict review by keeping the currently reviewed conflict copies visible. * Improved startup performance, responsiveness, and keyboard behavior. * Improved mobile sidebar resizing, image controls, and touch interaction. * Updated subscription-management routing. * Updated and expanded the bundled Note Weaver User Manual. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is iOS requirement: Ninja at 13.4 against Note Weaver's 15.0. On price, update cadence, ads and in-app purchases 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
Both are free to download. Ninja sells 11 in-app purchases, starting at $2.99 per 7 days and Note Weaver sells 2 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.
Ninja ships an update every 2 weeks, Note Weaver weekly. The most recent releases landed on September 25, 2026 and September 17, 2026 respectively.
| Parameter | Ninja | Note Weaver |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (11K ratings) — better | — |
| Positive reviews | 92.1% of reviews | — |
| Number of ratings | 11K — better | — |
| Update frequency | Every 2 weeks | Weekly — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.4 — better | 15.0 |
| Further details — not scored | ||
| Size | 52 MB | 14 MB |
| Age rating | 4+ | 4+ |
| Developer | Joseph Semrai | Martin Bailey Photography K.K. |
Bugs and requests
Ninja
Reported bugs
2 issues- Login screen freezes
- Compatibility issues with older devices
Requested features
3 requests- Dark mode option
- Expanded collaboration tools
- Enhanced security and backup features
Note Weaver
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Ninja
- Weekly Plan3 Days trial$2.997 Days
- Basic$4.991 Month
- Pro$9.991 Month
Show 2 moreShow fewer
- Premium Monthly$9.991 Month
- Expert$19.991 Month
- 100 Tokens$4.99
- Buy 250 Tokens$7.99
- Basic$9.99
Show 3 moreShow fewer
- 1500 Tokens$14.99
- Expert$49.99
- Lifetime Plan$69.99
Note Weaver
- Note Weaver Monthly Subscription$5.991 Month
- Note Weaver Annual Subscription$59.991 Year









