# Chemistry Keyboard vs PhysiKey

The clearest difference is review sentiment: Chemistry Keyboard at 88% against PhysiKey's 0%. Chemistry Keyboard also leads on chart position (#134 vs unranked) and iOS requirement (15.0 vs 26.0). PhysiKey's advantage is update cadence (monthly vs every 6 months). On price, ads, in-app purchases and monetization model there is nothing between them.

Chemistry Keyboard costs $1.99 and PhysiKey $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Chemistry Keyboard ships an update every 6 months, PhysiKey monthly. The most recent releases landed on October 21, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Chemistry Keyboard | PhysiKey |
| --- | --- | --- |
| Price | $1.99 | $1.99 |
| Rating | **[4.6 (17 ratings)](https://appshunter.io/ios/app/chemistry-keyboard/id914964478/reviews)** | — |
| Number of ratings | **17** | — |
| Positive reviews | **87.5% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Monthly** |
| Monetization | Paid | Paid |
| Best chart rank | **#134** | — |
| Size | 9 MB | 4 MB |
| Requires iOS | **15.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Generally Helpful Software](https://appshunter.io/developer/286015711) | [Fintech Solutions, Inc.](https://appshunter.io/developer/1024681393) |

## What reviewers say

### Chemistry Keyboard

[App page](https://appshunter.io/ios/app/chemistry-keyboard/id914964478)

**Currently charting:** #134 Top Paid · Utilities (US App Store)

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.

**Highlights:** Superscript characters, Subscript characters, Arrow glyphs, Lowercase Greek characters, Chemistry Unicode characters, Offline functionality, Wikipedia data lookup demo

**Features:** Vision Pro support

**In-app purchases:** none


### PhysiKey

[App page](https://appshunter.io/ios/app/physikey/id1024681394)

This iOS keyboard is designed for physical and occupational therapists to quickly input common medical symbols, shorthand, and acronyms into any app. Streamline charting and patient profile writing for increased efficiency in practice.

**Highlights:** Medical shorthand and symbols, Customizable keyboard for PT/OT, Works with any iPad app, Increases charting efficiency, Quickly enter patient observations

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

**In-app purchases:** none


## Frequently asked questions

### Is Chemistry Keyboard free?

Chemistry Keyboard costs $1.99, with no in-app purchases.

### Is PhysiKey free?

PhysiKey costs $1.99, with no in-app purchases.

### Do Chemistry Keyboard or PhysiKey have ads?

Neither Chemistry Keyboard nor PhysiKey shows ads.

### Which is updated more often, Chemistry Keyboard or PhysiKey?

Chemistry Keyboard ships an update every 6 months, and PhysiKey monthly. Most recently, Chemistry Keyboard was updated on October 21, 2026 and PhysiKey on October 1, 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.*