PKU Tools is an all-in-one nutrition app for people with phenylketonuria (PKU). It replaces the scale, nutrition table, calculator and pen-and-paper with a single app for a low-phenylalanine (Phe) diet.

Yes. The food search, barcode scanner and Phe calculator are completely free and don't even need an account. The diary, blood values, own foods and the AI calculator come as a free trial, with no ads. Optional Premium subscriptions raise these limits and add CSV export and more AI.

Which devices can I use it on?

PKU Tools is a progressive web app. It installs on Android, iOS, Mac and Windows and is also on the Google Play Store. Your data syncs across your devices in real time.

Is my health data private and secure?

Yes. Your data is stored securely and is not sold. It stays yours, and you can export or delete it anytime. PKU Tools is open source and independent, built by and for the PKU community. See the Privacy Policy for details.

Do I need an account?

For the basic tools — food search, barcode scanner and the Phe calculator — you don't need an account. You need an account to save your data (diary, blood values, own foods) and for the AI calculator. Signing in also syncs everything across your devices.

All-in-One Nutrition App for PKU

This app is intended for people with PKU. It combines a scale, nutritional table, calculator, pencil and paper.

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Food Search: Search the food database with USDA and BLS data.
Barcode Scanner: Scan product barcodes.
AI Calculator: Estimate your food from a description or photo. Or read the printed values off a nutrition label.
Phe Calculator: Calculate Phe or convert protein to Phe.
Diary: Daily log with progress and smart suggestions.
Diet Report: Charts and summary of your diet over time.
Blood Values: Track Phe and tyrosine in charts.
Own & Community Foods: Save custom foods, find them in search and share with the community.

One app, not a whole kit

What used to be a hassle now takes just a few clicks.

The old wayWith PKU Tools

≈ 25 mg Phe

Calculate any food

Search, scanner, AI and calculator — four ways to determine the phenylalanine of any food.

Skip the scale

No need to weigh — let the AI estimate the weight straight from a photo.

≈ 120 g

In one click

Logging is lightning fast — with suggestions and automatic food icons.

Suggestions

Diary

320/400

Diet Report

Blood Values

Keep it all in view

Diary, diet report and blood values — all your PKU data clearly in one place.

Open source, independent & private

From the developer of one of the first PKU apps for Android "Phe Rechner", as well as "PKU Manager". Likewise introduction of the barcode scanner and AI calculator specifically for PKU. Development of PKU apps since 2013.

Open source

Anyone can contribute.

View on GitHub

Independent

By and for people with PKU.

Privacy

Your health data stays yours.

Trial version

€0

Free of charge, ad-free

14 days in the diary
30 blood value entries
50 own foods
3 AI estimates/day

PKU Tools Premium

€3/month

Support monthly and get access to all features.

Unlimited diary entries
Unlimited blood value entries
Unlimited own foods
CSV export (Excel)
20 AI estimates/day
AI image analysis
Update food icons

Join

PKU Tools Premium + AI

€5/month

Get all features and more AI budget.

All Premium features
Unlimited AI estimates (normal use)
AI image analysis
Update food icons