Using Bloom Private comes down to four habits: log your period, add the symptoms you care about, check your predictions and keep a backup. Everything below works without an account, and your records stay on your iPhone, protected by iOS encryption, unless you choose to export them or turn on Apple Health.
Step 1: log your period
Open the app and record the first day of your period, then the last day when it ends. Add the flow (light, medium or heavy) for each day if you want to see how it changes. Logging spotting separately keeps your cycle start accurate.
Step 2: add symptoms and notes
The daily log lets you record more than 60 symptoms, as well as mood, sleep and energy, on any day of your cycle. Start with two or three items that matter to you, such as cramps or headaches, and add more later. A free-text note is useful for anything unusual.
Step 3: track fertility signs (optional)
If you want to understand ovulation, you can log:
- Basal body temperature, taken at the same time every morning before getting up.
- Cervical mucus, which becomes clear and stretchy before ovulation.
- LH test results, which usually turn positive 24 to 36 hours before ovulation.
- Cervical position, if you have learned to check it.
The estimated fertile window appears from the start and becomes more personal after two cycles with a detected ovulation. It is not a contraceptive method.
Step 4: set up the pill blister (if you take the pill)
Choose your pack type (21+7, 24+4, continuous 28-day or custom), set your start date and turn on reminders. If you miss a pill, the app shows guidance based on WHO and ACOG recommendations; always check your pill leaflet or ask your doctor. Our missed pill guidance is also available on the web.
Step 5: share with your doctor
| Export | What it contains | Plan |
|---|---|---|
| Basic PDF report | Cycles and main symptoms | Free |
| Full clinical PDF | Detailed history with charts | Premium |
| CSV | Your period dates | Free |
Reports are created on your iPhone and only shared when you choose to.
Step 6: protect your history
- Turn on Face ID or Touch ID in the app settings.
- Export a full backup regularly. It is encrypted with AES-256, and you decide where to keep the file.
- Apple Health is optional and off by default. If you turn it on, the app can write flow, sexual activity, cervical mucus and basal temperature to Health.
Want to test the maths first? Our Try our free period calculator runs in your browser and stores nothing.
Frequently Asked Questions
Open the app and record the first day of bleeding, then the last day when it ends. You can add flow and spotting separately.
Yes. Set up the pill blister with your pack type and start date, turn on reminders and use the missed-pill guidance if needed.
Export a full backup from the app settings. The file is encrypted with AES-256 and you choose where to keep it.