MXTNote vs Tethra.ai
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MXTNote
This app helps organize research and study materials by linking PDFs, notes, and web pages. It offers PDF reading, text and handwriting notes, and an arXiv explorer for academic papers. Create a knowledge graph to visualize connections between your research fragments.
- PDF reader with link navigation
- Text and handwriting note-taking
- Link notes and PDFs to create a knowledge graph
- ARXIV explorer for academic papers
- Web page import (HTML to PDF)
- OCR and image search for PDFs
- Sync across devices
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MXTNote is a free PDF reader and note taking app. When we study for a subject, we start by collecting reference, document idea fragments, then we expand our knowledge structure by creating links between these fragments, or add more content around them. MXTNote provide ways to simplify some of these steps Here are some examples: - A PDF references another PDF, you can select the two location and link them. - After embedding a selection from PDF to notebook, a two way link is automatically created between PDF and notebook. - Link can be created between notes to form a graph, to capture a knowledge/task dependency At block level, MXTNote consists of the following: - PDF reader - Text note taking - Handwriting note taking - Graph view - ARXIV explorer - Calendar Here are the detail features: (those marked with (*) requires MXTNote account, free signup) Reading: - PDF reader with thumbnail index, link navigation - Import web page (HTML will be converted to PDF) - support DJVU/MOBI (*)(file will be converted to PDF) - Text search (using text in PDF, or OCR) - Image search (useful for searching math symbols) - Translate selected text into English Notes: - Simple text note - Write on PDF or select box from PDF - Support links between notes, attach tags to notes. - Search notes by original PDF, tags, or text - Built-in split screen to copy note to notebook - Multiple page notebook with text or handwriting. - Support pressure sensitive input (Apple pencil). - Print notebook to PDF file or printer - Use Latex input for math formula or use the Math formula editor ARXIV: - Search ARXIV and download paper - Monitor ARXIV for new papers matching predefined query Sync: - Sync across all your device (*) - Available as web app Other: - In-app tutorial available for major functions please visit our website for details: https://note.mxtsoft.com/doc
Tethra.ai
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Your personal AI team that actually gets work done. Tethra gives you a team of AI agents you can hire, chat with, and delegate real tasks to — all from your phone. If you're juggling too many projects, drowning in to-dos, or just need help staying on top of everything, your AI crew is ready. Some features and content require in-app purchases or a subscription. HIRE AI AGENTS FOR ANY ROLE Browse a catalog of specialized agents — project managers, operations specialists, researchers, writers, analysts, and more. Each agent has unique skills, a distinct personality, and memory that persists across every conversation. Hire the roles you need. Fire the ones you don't. Build a team that fits how you work. CHAT IN REAL TIME Message your agents like you'd text a coworker. Ask questions, give instructions, brainstorm ideas — they respond instantly in threaded group conversations. @mention specific agents or let the intelligent router figure out who should handle each message. Your team is always available, always responsive. MANAGE TASKS VISUALLY Organize work on kanban boards with drag-and-drop simplicity. Create tasks, set priorities, and move them across columns as work progresses — from Backlog to Done. Assign tasks to your AI agents and they pick them up autonomously. No follow-ups needed. AGENTS THAT LEARN AND REMEMBER Unlike basic chatbots, Tethra agents have a four-layer memory system: - Company Memory — shared knowledge your whole team can access - Agent Memory — individual patterns and decisions each agent learns - Conversation Memory — context that carries across chats automatically - Your Preferences — personal working style and overrides The more you use them, the better they get. STAY ON TOP OF EVERYTHING Your dashboard shows active agents, open tasks, and live conversations at a glance. Push notifications with deep linking keep you connected — tap any alert to jump straight to the action. DESIGNED FOR FOCUS A refined dark interface with fluid animations makes long sessions effortless. Every interaction is fast, intuitive, and built to keep you in flow. FLEXIBLE PRICING Purchase credits as you go or subscribe to Pro for premium features and the best value. Credit Packs (one-time purchase, credits never expire): - 1,000 Credits - 50,000 Credits - 100,000 Credits - 250,000 Credits Pro Subscriptions: - Pro Weekly - Pro Monthly - Pro Annual (best value) Pro subscriptions provide access to premium agent capabilities, priority response times, and a monthly credit allowance. Payment will be charged to your Apple ID account at confirmation of purchase. Subscriptions automatically renew unless canceled at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period at the rate of your selected plan. You can manage and cancel your subscriptions by going to your Account Settings in the App Store after purchase. Any unused portion of a free trial period, if offered, will be forfeited when you purchase a subscription. Terms of Use: https://tethra.ai/terms Privacy Policy: https://tethra.ai/privacy
Screenshots
Verdict
The clearest difference is in-app purchases: MXTNote at none against Tethra.ai's 7. MXTNote also leads on iOS requirement (13.0 vs 15.5). On price, update cadence, ads and device support 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. Tethra.ai sells 7 in-app purchases, starting at $4.99 per 7 days. MXTNote asks for nothing beyond the download.
Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on September 24, 2026 and October 14, 2026 respectively.
| Parameter | MXTNote | Tethra.ai |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.5 |
| Further details — not scored | ||
| Size | 131 MB | 48 MB |
| Age rating | 4+ | 17+ |
| Developer | Tao Ma | Gitspark Technologies, LLC |
In-app purchases
MXTNote
No in-app purchases
Tethra.ai
- Pro Weekly$4.997 Days
- Tethra$14.991 Month
- Tethra$99.991 Year
- 10,000 Credits$0.99
- 50,000 Credits$4.99
- 100,000 Credits$9.99
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- 250,000 Credits$24.99









