20TH LETTER ▪ 20TH LETTER PRIVATE LIMITED ▪ EST 2020 ▪
T
SOFTWARE, SET IN TYPE/ tiː /AI-DRIVEN DEVELOPMENT

We build the
future through
software.

From websites and mobile applications to AI-powered products and e-commerce platforms, we build, integrate, and ship AI: LLMs, NLP, and voice, alongside every other solution your idea needs.

Definition
let·ter (n.)

A character representing a sound in speech: the smallest unit a language is built from. Ours is the 20th: T, for Technology. We build software the same way: considered at the character level, structured into something worth reading.

Software set with the same discipline as a sentence.
// EVERY CHARACTER CONSIDERED
SERVICES

Set in every discipline.

Ten services, one studio: from the first sketch of an interface to the system running behind it.

Mobile Applications

Cross-platform apps built for both Android and iOS, from startup MVPs to enterprise-scale products.

React NativeFlutter

Web Applications

Performance-first platforms built on the latest stacks.

UI / UX Design

Interfaces that win hearts before minds.

Quality Assurance

Second chances are rare.

Product Development

From ideation to full development, one step at a time.

Artificial Intelligence

LLMs, NLP, and AI voice: built in, not bolted on.

CASE STUDY

One story, told well.

A closer look at how we approach the work: the brief, the thinking, and the outcome.

PRODUCTAI

Your customers speak. Hear what they say.

CLIENTPercept Pulse
INDUSTRYCustomer Experience
TECHNOLOGYAI Web Application
Percept Pulse ▪ Your customers speak. Hear what they say.

PERCEPT PULSE

THE BRIEF

Businesses needed a way to hear from customers in real time, in any language, without asking them to fill out a survey.

THE APPROACH

We built a voice-and-emoji feedback pipeline with live translation and sentiment scoring, tagged to branch and staff automatically.

THE OUTCOME

A feedback device that takes under five seconds to use, and a dashboard that shows sentiment the moment it happens.

Have a project in mind? Let's talk.

START A CONVERSATION
TRY IT LIVE

Edit the code, watch it run.

Change the function on the left: your letter's background updates instantly. No reload, no waiting.

highlight.js
OUTPUT: A..Z, click a letter and watch the alphabet drop
ABCDEFGHIJKLMNOPQRSTUVWXYZ
HELLO@20THLETTER.COM LET'S SET IT IN TYPE HELLO@20THLETTER.COM LET'S SET IT IN TYPE HELLO@20THLETTER.COM LET'S SET IT IN TYPE HELLO@20THLETTER.COM LET'S SET IT IN TYPE