T9 is a predictive text technology for mobile phones (specifically those that contain a 3×4 numeric keypad), originally developed by Tegic Communications, now part of Nuance Communications. T9 stands for Text on 9 keys.

Tool to decrypt/encrypt with T9 mode (predictive) for SMS text messages for (old) mobile phones or numeric keypads.

TT9 is a 12-key T9 keyboard for devices with a hardware numpad. It supports predictive text typing in 40+ languages, configurable hotkeys, and an on-screen keypad that can turn your smartphone into a Nokia from the 2000s.

Sep 27, 2024 · Although it’s less common with full keyboards being the norm, it can still be a useful skill! This wikiHow guide will show you how to text using T9. You can try the Type Nine app for iPhone and Smart Keyboard Pro for Android to use T9 on your smartphone.

TT9 is a 12-key T9 keyboard for devices with a hardware numpad. It supports predictive text typing in 30+ languages, configurable hotkeys, and an on-screen keypad that can turn your smartphone into a Nokia from the 2000s. And, best of all, it doesn't spy on you!

Mar 23, 2025 · TT9 is a 12-key T9 keyboard for devices with a hardware numpad. It supports predictive text typing in 30+ languages, configurable hotkeys, and an on-screen keypad that can turn your...

Aug 26, 2022 · T9 texting, also known as “Text on 9 keys,” was widely popular from the mid-1990s to the early 2000s. It allowed users to type quickly on 9-button cell phones with the help of predictive text. Though less common today with full smartphone keyboards, it remains a …

Jul 20, 2023 · T9’s predictive text feature predicts the word a user is trying to type based on the sequence of letters they enter. This eliminates the need to press each key multiple times to cycle through the letters on a traditional phone keypad. With T9, users can simply press the corresponding key once to input the desired word.

Mar 13, 2025 · TT9 is a 12-key T9 keyboard for devices with a hardware numpad. It supports predictive text typing in 30+ languages, configurable hotkeys, and an on-screen keypad that can turn your smartphone into a Nokia from the 2000s. And, best of all, it doesn't spy on you!

You can build this T9 keyboard using any phone-style numeric 12-key keypad and any development board based on the Raspberry Pi Pico 's RP2040 microcontroller. But Dupont's final version uses a custom PCB with Cherry MX-style mechanical key switches.