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Are AI Apps for Cancer Patients Safe? What to Check

An AI app can be a helpful companion if you know what it is for, check what it says and keep your care team in charge. Here is what to check, and what some apps list.

For information only, not medical advice.Updated 4 November 2026

What each app lists

  • Belong.Life: Free and anonymous for cancer patients and caregivers, according to its website. iOS, Android and a linked web version. Lists expert groups for many cancer types, an AI mentor called Dave, a care plan with reminders, patient and caregiver forums and a digital medical binder. (source, read 03/11/2026)
  • CarePilot: Free on the App Store, no in-app purchases listed. iOS. Breast cancer. Lists treatment paths to discuss with your doctor, an OncoChat assistant available 24 hours a day, symptom and side-effect tracking, a journal and results tracking. Records can be uploaded. (source, read 03/11/2026)
  • Ellis: Download is free, and access is by subscription inside the app according to the App Store listing (the website says free to start). iPhone and Android. English. Lists answers about cancer types, treatments and side effects, medicine tracking with reminders and an emotions journal. (source, read 03/11/2026)
  • Mima: iOS and Android. You speak or write in the app, and Mima organises what you say into observations. It remembers what you told it and proposes links between symptoms and habits that you can confirm, reject or edit. It keeps a list of questions for your doctor, gives you a summary to share on a web page, lets you attach files, and is not limited to cancer. Built with patients and doctors. It is free to start, with an optional premium plan. You can use it without uploading any document, and you can start without an account: open the app and talk to Mima right away, with no email or phone number. The app is available in 12 languages: English, French, German, Italian, Spanish, Portuguese, Chinese, Japanese, Russian, Arabic, Hindi and Bengali.

A checklist

  • Sources: does the app say where its answers come from?
  • Limits: does it say it is not medical advice?
  • Privacy: who sees your data, and can you delete it?
  • Your team: does it send urgent issues back to your care team?
  • Control: can you correct what it records?

In Mima, you confirm or reject each link it proposes.

How to choose

  1. Decide what you need most: a record for your appointments, a community, answers to questions, or a diary.
  2. Check the price, the platform and the language on the app's own page.
  3. Read what it asks of you at sign-up, and what it does with your documents.
  4. Try it for a week. Keep it if you still open it.

Frequently asked questions

Are AI apps safe for cancer patients?

Use them to organise and prepare, and keep your team in charge of decisions.

Can an AI app give medical advice?

It should not replace your care team.

What should I never do?

Delay urgent care because of an app.

For information only, not medical advice. For information only, not medical advice.