Features of our app for cancer patients
Onkobutler is a free app for cancer patients—a digital cancer diary that serves as a cancer notebook and logbook for sharing experiences. It helps those affected to record their symptoms, medication, and well-being on a daily basis and provides valuable data for the treatment team. This makes the app a diary for fighters, an inspiring companion on the personal path to recovery.
Graphical summaries at the touch of a button
With just one click, the Cancer Diary creates informative charts and graphs. This allows patients and doctors to keep track of the course of treatment at all times: visual representations of complaints, clear overviews of symptoms, and helpful progress monitoring for treatment and rehabilitation.
- Visual representation of the symptoms
- Overview of all symptoms
- Easy monitoring of the course of therapy
Record health status
Onkobutler makes it easy to enter important daily health data. Data on daily well-being is thus available for treatment planning. The input process is deliberately kept simple and can be mastered even by users with little experience and without training. The scope of the information can be customized individually according to requirements and patient wishes.

- Up-to-date health data
- Specification of basic vital signs
- Recording complaints
- Note function with free text field
Summary of information for doctors and treatment teams
At the touch of a button, clear reports can be generated from the entries. These reports help doctors and specialist staff to track the progress between appointments and adjust the therapy. This makes the diary an important guide for individualized treatment. Patients also have the option of forwarding a clear and meaningful summary of their Onkobutler data to the treatment team via encrypted email. This enables seamless monitoring.

Medication reminder
The app reliably reminds you to take your medication—especially during intense periods such as chemotherapy or rehabilitation. This minimizes the risk of errors and makes everyday life noticeably easier for patients. Multiple medications can be recorded, including the time, duration, and amount. The medication reminder thus ensures safety and peace of mind.

- Multiple medications can be administered
- Specification of duration, time, and quantity
- Handy reminder function
- All medications at a glance
Never forget to take your medication again—Onkobutler keeps track of everything and provides reliable reminders.
Emergency contacts
All important contacts are stored in one place: doctors, relatives, friends, and emergency numbers. This means that help in an emergency is just a click away—a valuable bonus in terms of support and safety.

- Treating doctors
- Close relatives
- Friends
- Emergency numbers
Multilingual use
The Onkobutler is available in multiple languages – including German, English, Turkish, French, Spanish, and Italian. This makes it the journal for cancer patients in many languages and promotes mindfulness, understanding, and motivation across cultural boundaries.

- German
- English
- Turkish
- French
- Spanish
- Italian

