Dotori Bluetooth Numpad
The block of 17 keys that a tenkeyless keyboard leaves out, on the phone already sitting next to your laptop. It pairs as an ordinary Bluetooth keyboard, so there is nothing to install on the other side.
What it does
The whole pad, where you expect it
Num Lock, / * −, the digits with their double-height + and Enter, the decimal point — all 17 keys in the arrangement your hands already know, so you are not learning a new layout to type a column of figures.
A standard keyboard to the host
It speaks Bluetooth HID, the same protocol a hardware keyboard uses. Windows, macOS, Linux, Android TV and anything else that accepts a Bluetooth keyboard accepts this one — no driver, no companion app, no account.
It reads the lights, not a guess
Num Lock and Caps Lock state come from the host's own LED report, so the app shows what the PC actually thinks rather than what it last sent. When a session starts it syncs Num Lock, which is the usual reason the first few keystrokes come out as arrows.
Made to be used without looking
Every key vibrates and inverts while pressed. You keep your eyes on the spreadsheet and the phone stays a keypad rather than a screen you have to watch.
Requirements
| Platform | Android (Kotlin) |
|---|---|
| Package name | com.droidactor.bt_numpad |
| Minimum Android | Android 9.0 (API 28) — required by BluetoothHidDevice |
| Target Android | API 36 |
| Host side | Any device that pairs with a standard Bluetooth keyboard. Nothing to install. |
| Permissions | Bluetooth, a foreground service to hold the connection, and notifications for it. No location, contacts, storage, camera or microphone |
| Price | Free, supported by ads (Google AdMob) |
| Accounts | None. No sign-in, no registration. |
| Status | Published on Google Play — store listing |
Known limits
It is a number pad, not a whole keyboard — there are no letters and no function row. If you need those, Dotori Bluetooth Keyboard covers them, and the two share the same Bluetooth session so only one of them holds the host at a time.
A host that never reports its LED state leaves the Num Lock indicator unknown; the keys still work. Bluetooth HID also needs the phone to stay in range — this is a wireless keyboard, with a wireless keyboard's habits.
Privacy
Keystrokes go from your phone straight to the device you paired with, over Bluetooth. They are not sent to the developer and not to the ads SDK, and the app keeps no log of what you typed. There is no app sign-in and no developer backend.
Support
Bug reports, questions and feature requests go to droidactor@gmail.com.