Visual Birth Control Blister
Digital blister for 21+7, 24+4, continuous 28-day and custom regimens. Never lose track of your pill cycle.
🔒 Local storage on your device, no accounts or servers
Period & fertility tracking with local storage.
Estimates for your cycle, ovulation, and symptoms. Stored on your iPhone, no servers, no account needed.
Download on the App Store
Free to download • iOS 18+ • iPhone & iPad • No registration • Designed in Europe
Apple App Privacy: Data Not Collected
Your privacy, side by side
Before you download any period tracker app, check where your intimate data is stored and who can access it.
Swipe to see the full comparison
| Bloom Private | Typical cloud-based trackers | |
|---|---|---|
| Account required | No. Open the app and start | Usually an account with your email |
| Where your logs are stored | On your iPhone, protected by iOS encryption | Usually on the company's servers |
| Ads and third-party trackers | None | Common |
| Backups | Encrypted with AES-256; you keep the file | Usually stored in the provider's cloud |
| Doctor-ready PDF | Basic report free · full report Premium | Varies |
| Face ID / Touch ID lock | Included free | Varies |
Typical cloud-based trackers
- ❌Usually ask you to create an account.
- ❌Usually store your cycle history on their servers.
- ❌Often place reports and analysis behind a subscription.
Bloom Private
- ✅No registration: open the app and log your cycle in 1 second.
- ✅Stored on your iPhone. No servers.
- ✅Free essentials: a basic PDF report for your gynecologist and Face ID lock at no cost. Premium is optional.
An app that evolves with you.
Choose your goal. We adapt the analysis, predictions, and even notifications to give you exactly what you need.
Understand Your Fertility
Understand your cycle phases and estimated fertile window. Bloom Private is not a contraceptive method.
Get Pregnant
An estimate of your fertile window based on your cycle history, BBT and LH tests. It becomes more personal after 2 cycles with detected ovulation.
Perimenopause
Track hot flashes and correlate hormonal changes in this new stage.
Absolute Privacy
Log your intimate health offline, on your iPhone.
"
I designed Bloom Private because technology should protect your intimacy, not exploit it.That's why we built an app where your privacy isn't an option, it's the foundation.Your body. Your data. Under your control.
B
Founder of Bloom Private
Founder
Premium design. Absolute privacy.
A fluid and professional experience that puts your data under your total control.
Works offline. No account, no cloud.
On-Device Storage
Powered by native SwiftData. Stored on your iPhone. No servers.
60+ Symptoms & Wellness Tracking
Track moods, symptoms, and patterns even when you are not on your period via the intuitive Daily Log.
Stunning Dark Mode
A premium, empathetic, and beautifully optimized interface that adapts perfectly to your device.
One-Click Medical Export
Generate a clinical PDF of your cycle history right on your iPhone and share it directly with your gynecologist.
Made for iOS 18
Bloom Private fits right into your iPhone, without giving up any privacy.
Home & Lock Screen Widgets
See your next period and current phase at a glance. Advanced widgets are Premium.
Haptic Feedback
Subtle haptics confirm every log, so the app feels native and responsive.
Apple Health (Optional)
Write flow, sexual activity, cervical mucus and basal temperature to Apple Health. Off by default.
Adaptive Birth Control Suite
Track your birth control, with every log kept on your device.
Two-Tier Reminders
A discreet main notification plus a backup reminder at the time you choose, so you don't miss your pill window.
Missed Pill Guidance
Step-by-step guidance if you miss a pill, based on WHO/ACOG recommendations. Always check your pill leaflet or ask your doctor.
Face ID / Touch ID Lock
Lock the app with Face ID / Touch ID, managed by iOS. Your birth control logs are stored on your iPhone.
Understanding your body shouldn't cost you your privacy.
Understand your cycle at a glance
Visualize your current phase and evolution effortlessly.
Predictions based on your body
Not on other people's data or opaque algorithms.
Stored on your iPhone. No servers.
Your records stay on your iPhone unless you choose to export them or turn on Apple Health.
No distractions, no manipulation
No ads and no dark patterns. Every reminder is optional and under your control.
Everything in one place, under your control
Tracking, notes, and analysis in a completely private space.
Local-First Architecture
Technology that physically protects you by not using external servers.
Inclusive & Neutral Design
An elegant and professional space for everyone who menstruates.
Data Sovereignty
Export, back up or delete all your information whenever you want. No questions asked.
Encrypted Local Backups
Create an AES-256 encrypted backup file that only you control and restore it on another iPhone from Settings. The app's data is not included in automatic iOS/iCloud backups.
Track 60+ symptoms and wellness data
From basal temperature to mood swings. Customize what you track to understand how your cycle affects your whole body.
Basal Temperature
Cervical Mucus
Menstrual Flow
Cramps
Mood
Sex Drive
Bloating
Energy
Cravings
+126
more
Stored on your iPhone. No servers.
New: Medical Export
Take your history to the doctor.
In 1 click.
Generate a detailed PDF report with your cycle history, symptoms, and notes to share with your gynecologist. Structured information helps get better diagnoses.
- Temperature and symptom charts
- Cycle length and variation summary
- Generated on your device
Medical_Report.pdf
Last 6 months
Only you have access to this document
Trust is built on architecture, not promises.
No Accounts
Start logging instantly. No sign-ups, no emails, and no waiting.
On Your iPhone
Stored on your iPhone. No servers.
Zero Tracking
We don't watch you. No hidden trackers, no ads, and no profiling.
Total Control
You are the only person who can access, export, or delete your data.
Privacy by Architecture
It's not just a promise, it's how the app is built: Bloom Private has no servers to send your data to.
Technical Specifications:
Local-First Architecture
All processing happens on your iPhone. No servers, no external databases.
Zero Cloud Dependency
Bloom Private has no servers and no external databases. Your records stay on your iPhone unless you choose to export them or turn on Apple Health.
iOS Encryption + AES-256 Backups
Your records are protected by iOS encryption. The backups you export are encrypted with AES-256-GCM, with the key kept in the iOS Keychain.
GDPR Native Design
Privacy by default, not as a legal obligation. Real digital sovereignty for you.
Bloom Insights
For your eyes only
Example: Your last 3 cycles averaged 29 days.
Calculated locally on your iPhone
Smart Analysis.
Zero Cloud.
Traditional apps send your symptoms to their servers so their algorithm can analyze them. We think differently.
- 1
Learns from you
Finds patterns between your daily symptoms and cycle phases.
- 2
Tailored predictions
Automatically adjusts if you have irregular cycles or hormonal changes.
- 3
On-Device Analysis
Statistical analysis that runs entirely on your iPhone. No cloud, no external servers.
Redesign: Notifications
Notifications designed with sensitivity.
Forget about spam. Our alerts are subtle, motivating and private: personalized encouragement after you log, gentle check-in reminders you can switch off, and 'Quick Actions' on the lock screen that open the app straight to today's log. An app that accompanies you, at your pace.
The Absolute Privacy Vault
Your Body, Your Data. Period.
Biometric Lock
Shielded access via Face ID / Touch ID so your records stay hidden even if you hand over your phone.
Stealth Notifications
Zero awkward moments in your day-to-day. By activating discrete mode, lock screen alerts hide explicit cycle data under an aseptic 'You have a new update'.
Face ID / Touch ID, handled by iOS
The app lock uses Apple's LocalAuthentication: iOS checks your face or fingerprint and Bloom Private never sees any biometric data. Everything is processed on your device.
Resources & Guides
Understand your body and your cycle through science.
Your data is yours. Your cycle too.
Join the new era of private menstrual tracking. No accounts, no servers, no third-party analytics or ads.
Apple App Privacy: Data Not Collected
Medical Disclaimer
Bloom Private is a tracking tool, not a medical device, and not a contraceptive method. Always consult a healthcare professional.
Informational only
Not a medical method
Free Tools
Calculators with no sign-up: your data is not sent to any server
Ovulation Calculator
Period Calculator
Due Date Calculator
Post-Pill Calculator
Implantation Calculator
Fertile Window Calculator
Conception Calculator
Pregnancy Weight Calculator
hCG Doubling Time Calculator
Pregnancy Weeks to Months Converter
Pregnancy Test Calculator
IVF Due Date Calculator
Due Date by Ultrasound
Frequently Asked Questions about Bloom Private
What is a private alternative to cloud-based period trackers?
Bloom Private is a privacy-focused alternative to cloud-based period trackers: no accounts and no servers. Your records are stored on your iPhone with Apple's SwiftData and protected by iOS encryption. They stay there unless you choose to export them or turn on Apple Health.
Is there a secure menstrual cycle tracker app with no account login required?
Yes, Bloom Private requires no registration, no email and no account. Your cycle logs, symptoms and notes are stored only on your device and protected by iOS encryption, so there is no server that could leak them.
Can I log symptoms on a period tracker when I am not on my period?
Absolutely. Bloom Private's Daily Log, accessible from the dashboard, lets you track 60+ symptoms plus wellness data such as mood, sleep and energy, and daily notes in every phase of your cycle, even on non-period days.