# Sigmakey: Math Keyboard — Type LaTeX, fractions, roots

> Type LaTeX, fractions, roots (iPhone/iPad app by Andrii Bashta.)

- Source: https://appshunter.io/ios/app/sigmakey-math-keyboard/id6788025133 (this page in markdown: same URL + `.md`)
- Developer: [Andrii Bashta](https://appshunter.io/developer/1547467775)
- Category: Utilities, Education
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 26.0 · 13 MB
- Languages: American English
- Released: 2026-08-06
- Data updated: 2026-08-19
- User reviews in markdown: https://appshunter.io/ios/app/sigmakey-math-keyboard/id6788025133/reviews.md

## What is Sigmakey?

Sigmakey is a math keyboard for people who need to type actual math, anywhere you can type at all. Fractions, exponents, roots, Greek letters, and matrices sit one tap away, and the cursor moves right into a numerator or an exponent, so scientific notation looks the way it should.

- A full math keyboard layout that works in any app with a text field
- A two-dimensional field with a cursor that steps into fractions and powers
- Type LaTeX, plain Unicode, or a rendered image, whichever the app expects
- Everything typeset on device, with no network
- Search for a symbol, or grab a recent or a favorite

Drop an equation into a note, a message, or a homework app without hunting through menus.

Privacy Policy: https://docs.google.com/document/d/e/2PACX-1vTDX9pxPOlUJl_skVUHPi99mAw0y2B2BYd_v1mJkoF3xW3rlOcW5KlYd4t93MMbbGhctSTnBTy7d_l6/pub
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Sigmakey Pro | $9.99 | one-time |



## Version history (last 1 release)

### 1.0 — 2026-08-06

No release notes.

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All apps by Andrii Bashta: https://appshunter.io/developer/1547467775

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-19.*