
TK Husteblume
The newly developed app from Techniker Krankenkasse offers precise pollen forecasts and a practical pollen alert to help you stay prepared for allergies. An integrated symptom diary and analysis features make it easier to track the progression of your allergy symptoms. In addition, a self-test and comprehensive information on hay fever, along with helpful everyday tips, are available. This makes dealing with pollen significantly easier.

What We Did
Rewrite
Design Sprint
Concept
Design
Flutter Development
Backend
Our Team
2
Product Owner
They coordinate the project and are the primary contacts for the client.
6
Developers
Responsible for the Flutter development of the app for mobile and web.
2
Designers
Responsible for the conception and alignment of the app across all platforms.
2
Testers
Finding bugs on all possible devices before users encounter them.
The Husteblume App

Highlights at a Glance
Data Protection
The symptom diary processes sensitive medical data that is stored exclusively locally on users’ devices. Transmission to servers only takes place in anonymized form and solely after explicit consent, to ensure privacy.
Widgets
The widgets allow users to place pollen forecasts directly on their home screen. This way, they always have the forecasts in view without having to open the app.
Apple Watch
With the new support for Apple Watch, users can now track pollen forecasts directly on their watch and gain even quicker access to relevant information.
Pen Test
To independently verify the app’s security, a penetration test is conducted before each major release. In this test, the app is checked for vulnerabilities to ensure that user data is optimally protected against external access.