# About Kallo

> Who makes Kallo, where its numbers come from, and what it deliberately does not do.

Kallo is a nutrition tracker that starts from a sentence. You describe what you
ate the way you would tell a friend — "big bowl of phở, extra rare beef" — and
Kallo splits it into dishes, then into ingredients, and derives calories and
macros from published food-composition data.

## Why it exists

Most nutrition apps make you translate your meal into their language: search for
each ingredient, pick a row that looks close, guess the portion, repeat. For a
bowl of noodle soup with ten things in it, that takes longer than the meal did.
People give up, and the app is useless to them.

Kallo was built in Vietnam, and that is not incidental. In Vietnamese food the
ingredient is rarely the hard part — the portion is. Nobody weighs a bowl of
phở. What matters is how big the bowl was, whether the chicken had its skin on,
whether the potatoes were deep-fried or air-fried. So Kallo reads those details
out of the sentence instead of asking you to encode them in a search box, and it
asks when the portion genuinely cannot be settled rather than guessing quietly.

It reads Vietnamese, English, or a sentence that switches between them mid-clause.

## Where the numbers come from

Every ingredient is matched against published food-composition data — the
Vietnam National Food Composition Table 2007, plus FAO and USDA tables — rather
than a figure the language model produced. The model's job is to read your
sentence and decide what you ate and roughly how much; the arithmetic is done
against reference data, and the source is recorded per row.

This matters because the failure mode of an AI nutrition app is a plausible
invented number. Kallo is built so that the invented part is the portion
estimate, which is honest about being an estimate, and never the composition
figure, which is looked up.

## What it does not do

- **It is not a photo app.** Kallo starts from text on purpose. A sentence shows
  you what it understood, lets you correct the one thing that is wrong, and gives
  the same result next time. See
  [how estimates work](https://kallo.fit/en/docs/estimates/how-it-works) for the full comparison.
- **It is not a medical device.** Estimates carry real error, and
  [the docs say by how much](https://kallo.fit/en/docs/estimates/accuracy-and-limits) rather than
  presenting a number without its limits.
- **It does not sell your data.** What is stored, and what actually reaches the
  AI model, is set out in [your data](https://kallo.fit/en/docs/account/your-data) and the
  [privacy policy](https://kallo.fit/en/docs/legal/privacy).

## Who makes it

Kallo is made by VÕ MINH KHÔI, an independent developer in Ho Chi Minh City,
Vietnam. It is not a company with a support department; it is one person who
answers the support address. The data controller and full registered address are
named in the [privacy policy](https://kallo.fit/en/docs/legal/privacy), as data protection law
requires.

Kallo is currently free while it is in beta. The
[pricing on the landing page](https://kallo.fit/en) is what starts when beta
ends, and existing users will be told before that happens.

## Related

- [What Kallo is](https://kallo.fit/en/docs/overview) — the product tour
- [Contact](https://kallo.fit/en/docs/company/contact)
- [Kallo Premium](https://kallo.fit/en/docs/account/premium)
- [Privacy policy](https://kallo.fit/en/docs/legal/privacy)

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_Source: [https://kallo.fit/en/docs/company/about](https://kallo.fit/en/docs/company/about) · Last updated: 2026-08-23 · Kallo docs index: [https://kallo.fit/llms.txt](https://kallo.fit/llms.txt)_