MXTNote vs MATH Keys
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
MATH Keys
Easily create mathematical equations, formulas, and symbols online. This free tool enhances academic productivity for students and educators by providing quick access to a wide range of mathematical notations.
- Online equation editor
- Mathematical symbols and operations
- Latex notation tools
- Copy and share formulas
- Calculus, Algebra, Trigonometry support
- Free to use
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MATH Keys is a completely free online equation editor that allows users to write mathematical equations, formulas, and symbols online! Our mission is to boost productivity in academic life whether that is for teachers, graduates, or students. Type out anything you want with your regular keyboard, and press the buttons on our MATH Keys to access mathematical symbols and operations. With the latex notation tools, you can copy or share whatever formula, equation, or symbol you just created anywhere you want. How to use: - Use your device keyboard to type your equation. You can use numbers, letters, or any other symbol on your device keyboard - Use the extension MATH Keys to click on symbols, such as integrals, sigma, fraction, etc.. - Navigate around by tapping your device Use the buttons as follows: - Copy Button: press the button to share an image. Once the share options pop up, press any option you'd like and press "copy" to copy the image. - New Button: delete the formula and start a new one Features and formulas for: - Calculus - Finite and infinite Integrals - Derivatives - Limits - Sigma symbol - Combinatorics - Algebra - Logs - Exponents - Radicals - Fractions - Inequalities - matrix - Trigonometry - Trigonometric functions - Common greek symbols: pi, alpha, beta, theta You can you use this app the same as a math latex online editor, math equation online editor, or MathQuill editor.
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Verdict
The clearest difference is rating: MXTNote at 5.0 against MATH Keys's 4.3. MXTNote also leads on update cadence (every 2 weeks vs every 6 weeks) and iOS requirement (13.0 vs 15.0). MATH Keys's advantage is ratings volume (6 vs 2). On price, ads, in-app purchases and monetization model 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. Neither carries in-app purchases, so what you see is what you pay.
MXTNote holds the better App Store score, 5.0 against 4.3. Both are backed by a comparable volume of ratings — 2 and 6 respectively.
MXTNote ships an update every 2 weeks, MATH Keys every 6 weeks. The most recent releases landed on September 24, 2026 and October 2, 2026 respectively.
| Parameter | MXTNote | MATH Keys |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | 4.3 (6 ratings) |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | 2 | 6 — better |
| Update frequency | Every 2 weeks — better | Every 6 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 131 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Tao Ma | Guy Goldstein |
Customer experience
MXTNote
MATH Keys
In-app purchases
MXTNote
No in-app purchases
MATH Keys
No in-app purchases









