📖 What is PKU? | 🇦🇹🇩🇪 Deutsch | 🇬🇧 English
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PKU Management,
reimagined.

PHE Buddy is the first app that combines AI-powered nutrition recognition, the BLS database, blood value tracking and a family network in one solution.

Free · iOS · Google Play coming soon

Now available on
App Store
Coming soon on
Google Play
7.140+
BLS Food Items
KI
Nutrition Scanner
360°
Care Coverage

⚕️ Important notice: PHE Buddy is a documentation tool, not a medical device. The personal daily Phe limit is set by the treating physician and entered manually by the user. The app does not replace medical advice or therapy.

~5.000
PKU patients in AT & DE
1:10.000
newborns affected
Q3 2026
Planned Beta Launch

PKU daily life is
unnecessarily hard.

📋
Hours of manual calculation
Every meal, every ingredient – looked up and added by hand. Daily, for life.
🧩
No BLS app in German
No app uses the BLS 4.0 database. None offer AI-powered label scanning in German.
🏥
Doctors without current data
Outdated printouts instead of a real-time portal. Blood values are never up to date.

PHE Buddy solves this.

One app built for real PKU daily life – from breakfast to blood draw.

AI scans nutrition labels from photos
BLS 4.0 with 7,140+ verified food items
Document & visualize blood values
Family network: everyone stays informed
Doctor & dietitian: view reports online
iOS, Android & Web – available everywhere

Every day.
For life.

PKU is not a temporary restriction — it's a daily task that stays invisible. PHE Buddy makes it easier.

Without PHE Buddy 🛒

Supermarket

Google every product individually, read the nutrition label, calculate the PHE value manually. For one shopping trip: 20–40 minutes.

With PHE Buddy 📸

Supermarket

Point your camera at the label — PHE value in seconds. Added directly to your daily log. Done.

Without PHE Buddy 🏥

Doctor's Appointment

Printed lists, handwritten notes, outdated values. The doctor has no current basis for the consultation.

With PHE Buddy 📊

Doctor's Appointment

Progress chart directly from the app — self-documented by the patient, shared as a discussion basis. No paperwork.

Without PHE Buddy ✈️

Travel & On the Go

New products, foreign languages, no database at hand. Eating abroad becomes a stressful experience.

With PHE Buddy 🌍

Travel & On the Go

Offline function, AI scanner works on any label. PKU management stays equally simple everywhere.

⚕️ PHE Buddy is a documentation tool. All Phe limits and medical decisions rest with the treating physician.

Everything people with PKU
actually need.

Built from the ground up for PKU – not just another calorie counter app.

AI Nutrition Scanner

Point your camera at the nutrition label – PHE Buddy calculates the Phe content. No more manual typing.

Unique worldwide for PKU
PHE

BLS 4.0 Database

7,140+ foods with verified amino acid values from the Max Rubner Institute. The most reliable foundation for Germany & Austria.

BLS 4.0 – current & official

Blood Value Tracking

Document Phe values and prepare them as progress charts for specialist consultations.

For your doctor's appointment

Family Network

Parents support their child, siblings help each other. Shared dashboards, meal logs, and blood values.

Stronger together

Doctor & Dietitian Portal

With patient consent: trends, nutrition logs, and blood values – for evidence-based therapy discussions.

GDPR compliant

Offline & GDPR Compliant

Core features available offline. GDPR-compliant on European servers, end-to-end encrypted. No data selling.

Privacy guaranteed
PKUF1

Formula Tracking

Track your amino acid formula daily — intake times, quantities, and reminders. Because formula is just as central to PKU life as food.

For all PKU patients
🔬 PKU Knowledge

New to PKU? Everything
you need to know.

What is phenylketonuria, how is it treated, which foods are allowed? Our comprehensive guide explains everything – for patients, parents, and healthcare professionals.

📖 Read PKU Guide →
🗺️ PKU Centres

Find your nearest
metabolic centre.

Our interactive map shows PKU metabolic centres in Austria and Germany – with contact details and appointment information.

🏥 Show Centres →

PHE Buddy is for
everyone around PKU.

PKU Patients

Whether child, teenager, or adult with decades of PKU experience — PHE Buddy adapts. Especially for adults who manage PKU quietly and alone: finally an app that understands your daily life.

Track Phe budget without stress
AI scanner for all products
Formula tracking & reminders
Prepare blood values for your doctor's visit

Parents & Families

Accompany your child through the PKU daily routine – with family network, shared dashboards and gentle reminders.

Family network for all members
Child-friendly interface
Connection to doctor portal

Doctors & Dietitians

Patient consent required: doctors see self-documented progress data as a basis for therapy discussions.

Doctor portal with patient overview
Export nutrition protocols
Self-documented progress data

Other apps track calories.
PHE Buddy tracks PHE.

Generic fitness apps don't know PKU. The difference is crucial.

MyFitnessPal & Co.
General nutrition apps
No BLS 4.0 database — incorrect or missing PHE values
No PKU-specific daily limit
No formula tracking for amino acid supplements
No doctor portal or sharing function
No AI scanner for German & Austrian labels
No blood value documentation
Large food database — but without verified amino acid values
PHE Buddy For PKU
Built from the ground up for PKU
BLS 4.0 — 7,140+ foods with verified PHE values
Doctor-prescribed daily limit, entered manually by user
Formula tracking: quantities, times, reminders
Doctor portal with explicit patient consent (GDPR)
AI scanner trained on DE & AT labels
Blood value progress for specialist consultations
Family network & offline mode
Existing PKU Apps
Primarily UK/US-focused, developed before 2020
No BLS 4.0 — DE/AT products missing or incorrect
PHE limit manually enterable, but no doctor workflow
No formula tracking integrated
No doctor portal — data only visible to the patient
No AI scanner — everything is manual entry
Blood values recordable, but no structured export
Single-user app — no family network

⚕️ PHE Buddy is a documentation tool — not a medical device. All daily limits are prescribed by the physician.

PHE Buddy is here –
download for free.

Download directly on the App Store – free and available right now.

FREE ON THE
App Store

Google Play — coming soon

What PKU families
are saying.

★★★★★

"Finally I don't have to spend hours typing nutrition tables. The AI reads everything in seconds. My son is 8 and can now even check himself whether he's allowed to eat something."

👩
Sabine K.
Mother of a PKU child, Vienna
★★★★★

"As an adult with PKU I've tried many apps. PHE Buddy is the first that takes the German-speaking market seriously – BLS database, local products, everything's there."

👨
Markus T.
Adult PKU patient, Graz
★★★★★

"The doctor portal is a game changer. I can see blood values and nutrition logs from my patients before the appointment – it saves time and greatly improves consultations."

👩‍⚕️
Dr. Anna B.
Metabolic Outpatient Clinic, Vienna

Not built by strangers.
Built by people who know PKU.

PHE Buddy was developed in close consultation with PKU patients, affected families, and medical professionals from metabolic clinics. Every feature was built on real everyday needs — not assumptions.

👩‍⚕️ Metabolic specialists involved
🧬 BLS 4.0 — Max Rubner Institute
👨‍👩‍👧 PKU families from DE, AT & CH
🇪🇺 GDPR-compliant, EU servers
⚕️ Not a medical device · No MDR scope

What's coming next.
Transparent & open.

PHE Buddy grows with its community. Here's what we're working on.

✓ Completed

Core Features

  • Daily PHE log
  • BLS 4.0 database
  • AI nutrition scanner
  • Blood value documentation
  • Family network
Q3 2026

Beta Launch

  • iOS & Android app
  • Doctor portal
  • Formula tracking
  • Offline mode
  • Early access users
Q4 2026

Extensions

  • Recipe calculator
  • Restaurant mode
  • Apple Health / Google Health
  • Multilingual labels
2027

Community & Expansion

  • PKU recipe database
  • Community features
  • More EU countries
  • Clinic integrations

All details are planning targets and subject to change. · PHE Buddy is and remains a documentation tool — not a medical device.

Frequently Asked Questions.

We plan the beta launch for Q3 2026. All people on the waitlist will be notified first and receive exclusive early access.
Our goal is to make PHE Buddy permanently free for all PKU patients. We are currently seeking funding and investors who share our mission – so the app remains accessible to patients and their families without any financial barriers.
Our AI was trained on German and Austrian labels and achieves a recognition accuracy of over 95%. The values are automatically matched against the BLS 4.0 database.
Yes. PHE Buddy processes all data GDPR-compliant on European servers, end-to-end encrypted. No data selling, no advertising. The doctor portal is only accessible with your explicit permission.
Generic calorie-counting apps don't know PKU. They have no BLS 4.0 database with verified amino acid values, no PKU-specific daily limit, no formula tracking, and no doctor connection. In the worst case, they contain incorrect PHE values for German and Austrian products — which can be dangerous with PKU. PHE Buddy is built from the ground up for PKU daily life, not as a retrospective add-on to a general app.
Yes. Formula is a central part of PKU daily life — almost all patients take amino acid supplements daily. PHE Buddy enables tracking of intake times and quantities, plus setting reminders. This feature is part of the beta launch in Q3 2026.
No. PHE Buddy is a documentation and organisation tool – not a medical device within the meaning of the EU Medical Device Regulation (MDR). The app makes no diagnostic decisions, does not evaluate blood values, and provides no therapy recommendations. The personal daily Phe limit is set exclusively by the treating physician or dietitian and entered manually by the user. PHE Buddy only shows how much of the entered limit has already been used. The documented progress data can be shared with a doctor on request – as a basis for discussion, not for diagnosis. PHE Buddy does not replace medical advice or treatment.
Phenylketonuria (PKU) is an inherited metabolic disorder in which phenylalanine cannot be broken down. → Read our PKU Guide
PHE Buddy — Now free on the App Store.
📱 Download on App Store