No Look Keyboard — Type Without Looking

June 23, 2026

Widget, Tool, Keyboard, Hangul-Input, Android-Port

No Look Keyboard — Type Without Looking#

No Look Keyboard — pick letters with 8-direction gestures

No Look Keyboard is an Android keyboard I built and shipped on Google Play back in 2012. It started from a simple frustration: “Texting on a shaky bus made me motion-sick — what if you could type using only the feel of your finger, without looking at the screen?”

Instead of tapping tiny keys precisely, you pick letters with big directional gestures (rubbing). Press and hold the input pad, rub toward one of eight directions to select the first letter of that direction’s character set, and rub back the other way without lifting to move to the next letter in the set. A plain tap (press and release) — without rubbing — switches the keyboard type (Hangul → numbers → symbols → Latin).

Piano Keyboard — A Keyboard You Play Like a Piano

June 23, 2026

Widget, Tool, Keyboard, Hangul-Input, Android-Port, Sound

Piano Keyboard — A Keyboard You Play Like a Piano#

Piano Keyboard — a keyboard that plays a song as you type

Piano Keyboard is an Android keyboard I built and shipped on Google Play back in 2011. It was a reaction to my earlier No Look Keyboard, which was “conceptually interesting but too hard to use in practice.” This one aimed for low learning cost and immediate fun.

The idea is simple: turn the screen into a piano and place a letter on each key. Then typing feels like playing the piano. In the default mode (Song mode) the app picks one stored melody and plays its next note with each keystroke — so when you type quickly, familiar tunes like Twinkle Twinkle, Für Elise, or Canon come out. Composing a message becomes “a little performance.”

Piano Keyboard

January 12, 2026

App, Android, Keyboard, Piano

Piano Keyboard#

Piano Keyboard is an Android keyboard app that I released on Google Play around 2011. It has since been removed from Google Play for maintenance reasons.

This app started as a direct follow-up to my experience with No Look Keyboard. No Look Keyboard was an interesting idea, but in practice it was simply too difficult to use. So this time I wanted to build a keyboard with a lower learning curve—something you could try and immediately feel was fun. That’s how I ended up designing and building a keyboard concept based on piano keys.

No Look Keyboard

January 11, 2026

App, Android, Keyboard

No Look Keyboard#

No Look Keyboard is an Android keyboard app that I released on Google Play around 2011. It has since been removed from Google Play for maintenance reasons. For me, though, it’s not just “an old app”—it was my first experience building and actually shipping a side project, which is why I wanted to preserve it here in the archive.

The idea started from a very personal moment. One day, I felt motion sick while typing something on my phone on a bus, and I wondered: “Wouldn’t it be nice if I could type on a smartphone keyboard without looking at the screen?” With that, I began building a keyboard concept designed to let you keep your eyes forward (or on something far away) and rely more on finger sensation than visual feedback.