Why it exists
No account, no server.
Most period apps ask you to sign up, and from that moment your data sits on a computer that is not yours. Bloody Radar does not: there is no account to create, nothing to sync, and no server to send anything to.
What you write stays on the phone and stays there. If you want to take it away you export it yourself, when you decide: as CSV to read anywhere, or as a full backup to load onto the new phone.
No account
Open it and write. There is no sign-up screen, because it would do nothing.No advertising
No ads, no tracking, no profiling.Lock code
If the phone gets passed around, the app closes behind a code.Delete everything
A button that does what it says, and does not ask why.What you log
One tap a day, and that is enough.
The minimum is marking when it starts: everything else is extra, and none of it is required. You tap a day on the calendar and choose what to add.
What it tells you
It does the numbers, you draw the conclusions.
After a few cycles the app has enough to show you patterns. They are not diagnoses: they are your own notes, lined up.
To read
Thirty-three articles, inside the app.
Short pieces on how the cycle works, what symptoms mean and what the data you are collecting actually says. They read offline like everything else, without opening a browser and without searching the web.
A look
Screens from the app, not mock-ups.
The rest
Works offline, and asks for nothing.
Reminders
Alerts you set, which stay on the phone like everything else.Export and import
CSV to read elsewhere, a full backup to move phone.Three languages
English, Italian and Spanish, app and articles alike.This is not a medical app
Bloody Radar records what you write and shows it back to you. It does not diagnose, does not prescribe and does not replace a doctor. Predictions are estimates based on your previous cycles: they are not contraception and must not be used as such. If something worries you, speak to someone qualified.
Questions
What people ask us.
Where does my data go?
Onto the phone, and it does not move from there. There is no account, no server, no sync: the app has nowhere to send it. If you uninstall, it goes too — so it is worth exporting a backup now and then.
Do I have to sign up?
No. There is no sign-up screen: you open the app and start logging.
What does it cost?
Nothing. No in-app purchases, no ads, and no paid version holding the real features hostage.
When is it out?
Coming soon on Google Play. The button above is switched off until the store page is live: better a button that says so than a link that goes nowhere. On iPhone, though, you can install it right now.
I have an iPhone — can I use it?
Yes. You add it to the Home Screen from Safari in three steps, and from then on it behaves like an app: full screen, offline, data on the phone. The “iPhone” button above leads to the page that explains it.
Can I use it as contraception?
No. Predictions are estimates drawn from your past cycles, and cycles change. Bloody Radar is not a medical app and must not be used to decide whether you can get pregnant.
What can I record?
The start and the end, flow at three levels, sixteen symptoms split across body, mood and other — each with five degrees of intensity — four kinds of event, basal temperature and a free note.
Does it work without internet?
Yes. The calendar, the statistics and the articles all work with the phone in aeroplane mode: there is nothing to load.
If I change phone, do I lose everything?
No, if you export first. The full backup loads onto the new phone. There is also CSV export, if you only want to read the data somewhere else.
Can someone open it and read it?
You can put a lock code on it. It is there against whoever picks up your phone, not to defend the phone itself: that is what your screen lock is for.
Is it too complicated?
You choose at the start: essential mode, which shows the calendar and little else, or full, with all the statistics. You can change your mind any time in the settings.
The rest you find by using it.