# Math Notes vs Tethys Visio

The clearest difference is in-app purchases: Tethys Visio at none against Math Notes's 2. Tethys Visio also leads on iOS requirement (15.0 vs 26.0). Math Notes's advantage is update cadence (fortnightly vs monthly). On price, ads and device support there is nothing between them.

Both are free to download. Math Notes sells 2 in-app purchases, starting at $3.99 per month. Tethys Visio asks for nothing beyond the download.

Math Notes ships an update fortnightly, Tethys Visio monthly. The most recent releases landed on October 11, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Math Notes | Tethys Visio |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.6 (22 ratings)](https://appshunter.io/ios/app/math-notes-math-solver/id6474252913/reviews)** | — |
| Number of ratings | **22** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Fortnightly** | Monthly |
| Monetization | Subscription | — |
| Size | 702 MB | 138 MB |
| Requires iOS | 26.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Kairoos Solutions SL](https://appshunter.io/developer/978066434) | [Celec](https://appshunter.io/developer/1634197210) |

## What reviewers say

### Math Notes

[App page](https://appshunter.io/ios/app/math-notes-math-solver/id6474252913)

This app offers a specialized keyboard and editor for creating and managing mathematical expressions. It supports LaTeX, real-time rendering, and various export formats, making it ideal for students and professionals alike.

**Highlights:** Innovative Math Keyboard, Multiple Math Symbols, Real-Time Rendering, LaTeX Support, Save and Share, Export Options (PDF, LaTeX, HTML, etc.), PDF Reader and Editor

**Features:** macOS Compatibility, Family Sharing, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Math Notes Full Unlock with AI | $3.99 | per month |
| Math Editor Full Upgrade | $3.99 | one-time |


### Tethys Visio

[App page](https://appshunter.io/ios/app/tethys-visio/id6737887067)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Math Notes free?

Math Notes is free to download, with in-app purchases available.

### Is Tethys Visio free?

Tethys Visio is free to download, with no in-app purchases.

### Do Math Notes or Tethys Visio have ads?

Neither Math Notes nor Tethys Visio shows ads.

### Which is updated more often, Math Notes or Tethys Visio?

Math Notes ships an update fortnightly, and Tethys Visio monthly. Most recently, Math Notes was updated on October 11, 2026 and Tethys Visio on September 29, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*