← Back to home Metria Bio — privacy
What the app records, where it goes, and who can see it.
Last updated 19 August 2026
Your clinic holds your records. Metria Bio is the software your clinic uses to collect them. The clinic that issued your activation code decides how your information is used and how long it is kept, as it does with the rest of your medical file. Each clinic runs its own separate installation, and nothing is shared between clinics.
This page covers Metria Bio specifically. Everything Proteus does with information in all of its software — encryption, audit logging, and what we never do — is set out in our general privacy policy, and applies here too.
Before you activate
Metria Bio is issued by a clinic to its own patients. You can only use it after entering a short activation code your clinic gives you. Until you do, the app holds no information about you and can reach no medical record.
When you enter that code, the app sends the code and nothing else to an activation service we run, which replies with the address of your clinic's system. This is the one moment the app speaks to Proteus rather than to your clinic, and it is how a single app can serve many clinics without any of them being listed in it. The service sees the code, not your name and not any medical information, and a code stops working the moment it has been used once. From that point on the app talks only to your clinic.
What the app collects
- Readings you record — glucose with its context and meal tag; blood pressure, pulse, and the position and arm you measured on; weight; waist.
- Peritoneal dialysis exchanges — fill and drain volumes, dwell time, glucose concentration, and the colour of the effluent.
- Hypo and hyper episodes — what your glucose was, how severe it felt, the symptoms you had, and what you did about it.
- Wounds — photographs you take, where the wound is, and your own notes.
- Doses — medication you record having taken, with the amount and route.
- What your clinic writes — prescriptions and changes to them, your care team's wound notes and photographs, and consultation records including the reason, the notes, the plan, and a next-visit date.
- Your account — your name, title, and patient number, as your clinic holds them.
What it does not collect
- No advertising, and no advertising identifiers.
- No analytics, and no usage tracking of any kind.
- No crash reporting to us or to anyone else.
- No location, contacts, calendar, microphone or call information.
- No access to your photo gallery. The app can only use a photograph taken for a wound at that moment; it cannot see the pictures already on your phone.
- No date of birth, identity number, home address or email address.
What the app asks your phone for
Two permissions, both about the network: internet access, and the ability to see whether you currently have a connection so it can wait and sync later. That is the whole list.
It does not hold a camera permission. When you add a wound photograph the app hands you to your phone's own camera app, which takes the picture and passes back that one image. Photographs are stored under a reference code, with nothing personal in the file name.
Where your information goes
- To your clinic's own server, over an encrypted connection. Your clinic runs its own system, including the service that syncs your phone — your medical information does not pass through Proteus, and there is no third-party cloud between you and your clinic.
- It is encrypted on your phone as well, so a lost handset does not expose it.
- Nothing is sold, and nothing is shared with any third party — not for advertising, not for analytics, not for anything else.
- Your information is not used to train any artificial-intelligence system.
- If the app fails to send something, it reports that failure — including what it was trying to send — to your clinic's server, so the problem can be found rather than losing your reading silently.
Your password
Your password is checked by your clinic's system, not by the app, and it is never stored on your phone. What the phone keeps is a session key held in the part of your phone's storage the operating system protects, so that you are not asked to sign in every time you open the app.
What stays on your phone
Your height and whether you prefer mmol/L or mg/dL are settings, kept on the handset. They are not sent to your clinic.
Who can see it
The clinicians at your clinic who are responsible for your care. Every time a member of staff opens your record or views a wound photograph, that access is recorded in an audit log, so your clinic can see who looked at what and when.
What the app does not do
Metria Bio records and displays. It does not diagnose, does not score or classify your readings, does not assess wounds, and never recommends or adjusts a dose or a treatment. Anything of that kind comes from your clinician, not from the app.
Keeping and deleting your information
Your medical records are kept by your clinic for as long as the law requires, which is generally longer than you might expect and is not something the app decides. To ask what is held about you, to correct it, or to ask for it to be deleted, contact your clinic — they are the people who can act on it.
Uninstalling the app removes the copy held on your phone. It does not remove your records from your clinic.
How to delete your Metria Bio account and data — what to ask for, what can be deleted, and what your clinic must keep by law.
Contact
About your own records: your clinic, whose details came with your activation code.
About the app itself: Proteus Medical Technologies —
sales@proteusmedical.co.za.
Metria Bio is supplied by Proteus Medical Technologies (Pty) Ltd, Johannesburg. Each clinic operates its own installation and is responsible for the records it holds. See also our general privacy policy.