Chemistry Keyboard

Chemistry Keyboard

Subscript, Superscript, Arrows

16 ratings
23 reviews
$1.99

Details

  • Released
  • Updated
  • November 3, 2014
  • September 18, 2025

Features

Chemistry Keyboard video #1 for iPhone
Chemistry Keyboard screenshot #2 for iPhone
Chemistry Keyboard screenshot #3 for iPhone
Chemistry Keyboard screenshot #4 for iPhone
iphone
ipad
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About

Easily input chemical formulas with specialized superscript, subscript, and arrow characters. Access lowercase Greek letters and other chemistry-related Unicode symbols. This keyboard extension works offline and includes a demo for viewing Wikipedia data.

Superscript characters
Subscript characters
Arrow glyphs
Lowercase Greek characters
Chemistry Unicode characters
Offline functionality
Wikipedia data lookup demo
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What's New in Chemistry Keyboard

1.2.2

September 18, 2025

• Using iOS 26 style icons for the return keys • Fixed tinted icon • Added a three characters, a backward arrow, Å, ∞

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User reviews

Not working in other apps

I bought this app to be able to write all the formulas in my chemistry notes but i have the settings turned on and i added it to my keyboards but for some reason im unable to use the keyboard in any app so i have to keep opening up the app and typing out what i need and then copy paste it into my notes :/
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very good and some question

This chemistry keyboard app is user-friendly, but it’s missing key chemical symbols. I hope all standard chemical notations (like ↑, ↓, ) can be added in future updates. It would be much more useful then!

so useful for digital notes

i study biochemistry and this genuinely saves me so much time. i hate writing out equations manually or having to google sub and superscript to paste into my notes, this keyboard has changed the game for me!!! i love being able to do my notes on my ipad rather than laptop, not only is this saving time but also saving my shoulder from having to carry around a laptop all day!!
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Response from developer

Thank you so much for the kind review. It made my day. ∞

Does not allow custom subscript or superscript lettering not preset

This app does not allow for superscript or subscript lettering that has not been predefined. Possibly useful for chemistry only representations.

Response from developer

It is limited to Unicode subscripts and superscript. If you can find one that is useful, I’d consider adding it. —glenn

Very Except …,

Why isn’t the symbol for Fluorine (F)
either on the keyboard or in one of the two lists of elements below the keyboard??
I know fluorine is just one letter - but you have the others either on the keyboard or beneath it. The alphabetical list with the “F” elements has Fe and others - but alas no F.

Response from developer

I put all the halogens under the Cl button. I tried to make elements accessible in order of (in my mind) their likelihood of appearing in a formula. So carbon, oxygen and hydrogen get their own buttons. Chlorine, fluorine, bromine and iodine are under one button. While sulfur, boron, nitrogen and phosphorus are under one buttons. All the other elements are placed in the two big lists. I hope this makes it fast for most people, but obviously if you have to type Hg a lot it will be non-optimal.

Developer apps

FAQ

What is Chemistry Keyboard used for?

Chemistry Keyboard is a specialized keyboard extension designed to help users easily input chemical formulas. It provides quick access to superscript, subscript, and arrow characters, along with Greek letters and other chemistry-related Unicode symbols.

How much does Chemistry Keyboard cost?

Chemistry Keyboard is a paid app, available for $1.99. This one-time purchase grants you access to all its features without any additional in-app purchases or subscriptions.

Does Chemistry Keyboard require an internet connection?

No, Chemistry Keyboard does not require network access. It is entirely self-contained and works offline, making it convenient for use anywhere without relying on an internet connection.

What devices is Chemistry Keyboard compatible with?

Chemistry Keyboard is compatible with iPhone, iPad, and iPod touch devices. It is rated for ages 4 and up.

How often is Chemistry Keyboard updated?

The latest version of Chemistry Keyboard is 1.2.2, last updated on September 18, 2025. Updates typically include improvements and new features for a better user experience.

Can I use Chemistry Keyboard for general typing?

While Chemistry Keyboard excels at inputting chemical symbols, it can also be used for general typing. However, its primary strength lies in its specialized character set for scientific notation.

What is the user rating for Chemistry Keyboard?

Chemistry Keyboard has received an excellent user rating of 4.9 stars from 14 ratings, indicating high user satisfaction with its functionality and ease of use.

Does Chemistry Keyboard offer different subscription tiers?

Chemistry Keyboard is a paid application and does not operate on a subscription model. The single purchase price of $1.99 unlocks all features, with no recurring fees or different tiers to consider.