# ElfKey

> ElfKey (iPhone/iPad app by ShenZhen RDING TECH CO . , LIMITED.)

- Source: https://appshunter.io/ios/app/elfkey/id6823000844 (this page in markdown: same URL + `.md`)
- Developer: [ShenZhen RDING TECH CO . , LIMITED](https://appshunter.io/developer/6823000846)
- Category: Utilities
- Price: Free
- Age rating: 12+
- Requires: iOS 13.0 · 37 MB
- Languages: American English, Chinese (Simplified, China)
- Released: 2026-11-06
- Data updated: 2026-11-08

## What is ElfKey?

ElfKey is the mobile companion app for PCsensor hardware.

SUPPORTED DEVICES
- Foot switches: FS series
- Macro keypads: MK series, BTC24K
- Multifunctional keypad: Delta21

TWO WAYS TO USE
- For foot switches and macro keypads, ElfKey is an on-the-go configurator: connect over Bluetooth to reassign what each key outputs. Settings are stored on the device, which then works standalone via USB, Bluetooth or a 2.4G receiver depending on the model — no phone involvement at runtime.
- For the Delta21, ElfKey is a live remote: your phone connects to the device over Bluetooth, the device connects to your computer over USB as a standard keyboard/mouse, and in-app actions are relayed to the computer in real time.

KEY FEATURES

◆ Bluetooth Connection
- Scan and connect your PCsensor device with live connection status and auto-reconnect

◆ Key Mapping (foot switches / macro keypads)
- Assign any key as keyboard keys, strings, mouse actions, media commands or macros
- Multi-layer key profiles: add, delete and switch layers on the fly
- Advanced triggers: double trigger (press/release), loop trigger, page-turning mode
- Output modes: single, continuous and repeat, with adjustable count and speed
- Refresh a single key or reset the whole device

◆ Delta21 Live Control
- Virtual keyboard with up to 6 simultaneous keys for easy shortcut input
- Touchpad to move, click and scroll the cursor on your computer
- Combined keyboard + touchpad control
- Media controls: volume, playback, browser and system shortcuts (Windows / macOS)
- App shortcut panels for PowerPoint, Word, Excel, Photoshop, VS Code and Chrome — one tap to trigger
- Text Notes: save frequently used text and type it into your computer through the device; protect notes with a PIN

◆ More
- Simplified Chinese / English interface

PLEASE NOTE
- ElfKey works together with PCsensor hardware. Without a device you can browse the interface and manage Text Notes, but key configuration and computer control require a physical device.
- No sign-up or login required. We do not collect personal data. Bluetooth permission is used solely to connect your own PCsensor device.
- Connection methods and features vary by model — please refer to the product manual.

## Is ElfKey safe?

Not enough ratings yet to assess ElfKey.

## Is ElfKey legit?

ElfKey has limited verification signals. The AppsHunter Legitimacy Score for ElfKey is 50 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 1 release)

### 3.0.0 — 2026-11-07

No release notes.

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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 2026-11-08.*