Nalarasa Lab

PT. Nalarasa Intervensi Digital

Nalar. Rasa. Digital.

Guided by logic. Grounded in love.

Digital product studio · Est. 2026

01

Brand Foundation

About Nalarasa

Nalarasa Lab is a digital product studio dedicated to one thing: turning behavioral intervention into real, usable digital tools.

The name

Nalarasa comes from two Indonesian words: nalar (reason, logic, the way we think) and rasa (feeling, intuition, empathy). Neither stands in opposition to the other. Every human decision needs both.

Public name

Nalarasa Lab is the name used across all public platforms. The registered legal entity is PT. Nalarasa Intervensi Digital.

Mission

There is already a wealth of research in psychology and behavioral science that most people never get to benefit from, because it stays locked in academic literature. We translate what is already known into tools people can use day to day.

Position

A digital product studio grounded in psychology. Nalarasa is the parent brand behind every product and service. Each product is built on research that already exists, not assumptions.

Tagline

Nalar. Rasa. Digital.

Primary hook · two Indonesian words

Guided by logic. Grounded in love.

Supporting line · English

02

Portfolio

Our Products

Each product carries its own identity and speaks to its own audience, while sharing the same foundation: existing research, translated into something usable.

Runtut

Runtut

An offline-first app built on metacognition frameworks, helping people make decisions more consciously and discover patterns in how they actually think.

StatusLive now

de.Think

A decision tool for founders. Structured frameworks from decision science, local first by default.

Soon

Kenala, HAKU

More products are in the works, all rooted in the same approach: behavioral change does not need to be a lecture. It can be a tool you actually want to use.

StatusIn development
03

Try the idea first

Two free calibration tests

Both products start from the same question: how close does your confidence sit to your accuracy? Each has a three minute test you can take right now. No account, and your score appears straight away.

Life decisions
Uji kalibrasi Runtut

Ten questions about the world, then a look at how your confidence compared to what turned out to be true. Built for everyday decisions about work, money, and relationships.

In Indonesian
Take the test
Business decisions
de.Think calibration test

Ten questions about companies and markets, scored the same way. Built for founders and operators who make decisions with real cost attached.

In English
Take the test
What calibration means

If you say you are 80 percent sure about ten things, about eight of them should turn out true. Most people say 80 percent and get five or six. The distance between how sure you feel and how often you are right is your calibration gap. It shows up in every forecast you make about your own life and work, and almost nobody measures it.

04

Where We Are

Early stage, building carefully

We are an early-stage studio, and we would rather say so plainly than appear larger than we are. Honesty builds trust faster.

Every claim we make should trace back to existing research. What we cannot support, we do not say. Read more about us

— · —