# AllSymbols Keypad — Special Characters Keyboard

> Specialized iOS keyboard for quick access to science, math, and professional symbols. (iPhone/iPad app by 凌云 何.)

- Source: https://appshunter.io/ios/app/allsymbols-keypad/id6784938384 (this page in markdown: same URL + `.md`)
- Developer: [凌云 何](https://appshunter.io/developer/1879789850)
- Category: Reference, Business
- Price: $2.99
- Age rating: 4+
- Requires: iOS 15.0 · 20 MB
- Languages: Chinese (Simplified, China), American English
- Released: 2026-07-02
- Data updated: 2026-08-24
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/allsymbols-keypad/id6784938384/reviews.md

## What is AllSymbols Keypad?

AllSymbols Keypad is a professional iOS keyboard extension for people who type symbols more often than emoji. System keyboards hide math, science, and tech symbols deep in pages; AllSymbols Keypad puts them one tap away in WeChat, Notes, Notion, Pages, Word, Excel, Safari, Mail, Obsidian, or any text field.
One keyboard, nine domains. Science covers math, physics, chemistry, and biology. Earth & Space covers geology, astronomy, and meteorology. Engineering & Tech covers computer science, electronics, mechanics, and civil engineering. Medicine & Health covers clinical, pharmacology, anatomy, and more. Humanities & Social Science covers linguistics, philosophy, law, and history. Business & Finance covers currency, accounting, statistics, and economics. Arts & Design covers music, typography, and visual design. Specialized Fields covers chess, religion, sports, cooking, and library symbols. General Symbols covers arrows, brackets, bullets, punctuation, and dingbats.
Flat, fast navigation. Instead of nested menus, subjects are laid out as a single swipeable tab bar at the top of the keyboard. Tap a direction tab to instantly see its symbols. From Science, tap Math, then choose Calculus for d, nabla, infinity, lim, sum, integral, contour integral. From Medicine, open Clinical and pick Vitals for degree-C, mmHg, micro-L, female, male, Rx, Delta. No hunting, no Wikipedia.
Recent symbols, ready when you are. The star key toggles a recent list, so the symbols you use most float to the top automatically after first use. Long-press any key for a large preview before inserting. Optional key click sounds give satisfying feedback while you type. The keyboard works system-wide exactly like Apple's own extensions.
Speaks your language. Subject and direction names are localized in more than 60 languages and automatically match your device language. English, Chinese, Japanese, Korean, French, German, Spanish, Portuguese, Russian, Arabic, and Hindi are supported out of the box.
Keep it yours. Enable only the subjects you actually use. A linguist can skip circuits, a quant can skip phonetics, a calligrapher can skip diagnostics. Turning a subject off removes its tabs and keeps the bar clean and uncluttered.
Real workflows. Draft physics homework in Notes without LaTeX. Reply in WeChat with correct units. Write H2O and alpha-decay notation in Notion. Prepare finance memos with mu, sigma, delta-NPV, and bitcoin. Annotate patient charts with mmHg, mg/dL, and degree-C. Build design decks with copyright, registered, trademark, and grid marks.
Optimized for iPhone and iPad. Larger symbol grids on iPad, thumb-friendly spacing on iPhone, and automatic light and dark mode. Three keyboard heights let you dial in the perfect balance between symbol density and screen space.
Privacy-first. AllSymbols Keypad is a standard iOS keyboard extension. It makes no network requests while you type, performs no keystroke logging, and never transmits your input. Symbol insertion is fully offline. Full Access is optional; you can type symbols without granting it. Typing is automatically suspended in password and phone-number fields for security.
Setup in 20 seconds. Install the app, then go to Settings, General, Keyboard, Keyboards, Add New Keyboard, and select AllSymbols Keypad. Open any app, tap the Globe key, and switch to it. Pick your domains once, and type everywhere.
Stop hunting for the sum symbol. Start typing like the paper is already written.

## Key features

- Nine specialized symbol domains
- Flat, fast navigation with swipeable tab bar
- Recent symbols list
- Long-press symbol preview
- System-wide keyboard extension
- Localization in over 60 languages
- Customizable subject visibility

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/allsymbols-keypad/id6784938384/reviews.md

### 5/5 — 解决了我的问题

*2026-08-10*

感谢

## Frequently asked questions about AllSymbols Keypad

### What is AllSymbols Keypad?

AllSymbols Keypad is a paid iOS keyboard extension designed to provide quick access to a wide range of specialized symbols across nine domains like science, medicine, and finance. It aims to make typing these characters more efficient than using the standard system keyboard.

### How much does AllSymbols Keypad cost?

AllSymbols Keypad is a paid application with a one-time purchase price of $2.99. There are no in-app purchases or subscription fees associated with its use.

### What devices is AllSymbols Keypad compatible with?

AllSymbols Keypad is optimized for both iPhone and iPad, offering larger symbol grids on iPad and thumb-friendly spacing on iPhone. It also supports iPod touch devices.

### Does AllSymbols Keypad have ads?

No, AllSymbols Keypad is ad-free. As a paid application, it does not contain any advertisements, ensuring an uninterrupted typing experience.

### How often is AllSymbols Keypad updated?

The app was last updated on August 19, 2026, with version 1.4. This indicates a relatively recent update, suggesting ongoing support and potential for future improvements.

### Is AllSymbols Keypad safe to use?

Yes, AllSymbols Keypad is designed with privacy in mind. It functions as a standard iOS keyboard extension, making no network requests, logging keystrokes, or transmitting user input.

### Can I customize the symbols shown in AllSymbols Keypad?

Yes, you can customize the keyboard by enabling only the subjects you use. This feature helps keep the tab bar clean and uncluttered by removing unnecessary symbol categories.

### What age rating does AllSymbols Keypad have?

AllSymbols Keypad has an age rating of 4+. This indicates it is suitable for users of all ages, with no content restrictions.

## Version history (last 4 releases)

### 1.4 — 2026-08-19

What's New in v1.4
	•	Completed the symbol library: added full professional symbol sets for minerals & rocks, physical geography, human geography, dermatology and more, and fixed missing symbols in some non-Chinese languages.

### 1.3 — 2026-07-23

- Fixed keyboard activation status : Removed the old read-and-clear logic, so the status no longer flickers between active and inactive.
- Improved activation detection : Added a file-based backup in the App Group shared container, making detection more reliable when NSUserDefaults has sync issues.
- Updated category name : "语言学" renamed to "IPA辅音" in the Chinese category data.

### 1.2 — 2026-07-22

What's New

 Recent Symbols on the "Frequent"  Key

The Frequent button now opens a panel of recently used characters instead of a static default list.

 Reverse-Chronological Order

The most recently used symbol always appears first.

 Deduplication

Tapping a symbol that is already in the recent list moves it to the front, so duplicates are avoided.

 Persistent Storage

Recent symbols are saved to NSUserDefaults via the App Group, so they persist across keyboard sessions.

 Default Fallback

If no recent symbols exist yet, the panel still shows a sensible default set of common symbols.

### 1.0 — 2026-07-02

No release notes.

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All apps by 凌云 何: https://appshunter.io/developer/1879789850

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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 2026-08-24.*