Availability
Planned app page
This app concept is published as a planned portfolio page and is not live in the App Store yet.
Health
Private Period Tracker for iPhone
A private period tracker that stores everything in HealthKit on your iPhone — no cloud, no account, no data sharing — unlike Flo, which the FTC sued for sharing user data with Facebook.
Planned Swarmval app. Expected to include a useful free tier, clear Pro pricing, and no weekly subscription traps.
Best for
HealthKit-only storage
Cycle data is written to Apple HealthKit on your iPhone. Same encryption + secure-enclave protection as your other health data. Apple never sees it; Swarmval never sees it.
Privacy
Private by default
Period Tracker is planned around local-first handling for files and app data.
iPhone Planned portfolio app No ads
9:41
Period Tracker Cycle
Brush
Clean
Compare
Features
Built around the work people actually need to finish.
HealthKit-only storage
Cycle data is written to Apple HealthKit on your iPhone. Same encryption + secure-enclave protection as your other health data. Apple never sees it; Swarmval never sees it.
No account, no email, no cloud
No signup. No way to even associate your data with an identity. The app cannot send your data anywhere because it has no backend.
Cycle prediction + fertility window
Standard cycle prediction based on your logged history. Fertility window estimate (calendar method — see FAQs about accuracy).
Symptoms + mood log
Daily symptom and mood log, all stored in HealthKit. Useful for spotting patterns and discussing with a healthcare provider.
Discreet app icon option
Pro tier offers a generic app icon (notes, calculator) on the home screen for privacy in certain contexts.
Export to PDF for your doctor
Export 3 / 6 / 12 months of cycle and symptom data as a PDF you can email to a doctor. Export happens on-device; the PDF is yours.
Free vs Pro
Try the workflow first. Upgrade when the limits matter.
Swarmval apps avoid surprise weekly pricing. The upgrade path is visible before purchase and support links are easy to find.
Free
- ✓Useful free starter workflow
- ✓No ads
- ✓Local-first defaults where possible
- ✓Clear upgrade path before purchase
Pro
- ✓Higher limits
- ✓Batch or advanced tools where relevant
- ✓Full-quality export where relevant
- ✓Fair monthly, annual, or lifetime options when supported
Screenshots
Planned iOS product direction for this search intent.
These frames show the product workflow direction while the app is in the portfolio queue, giving humans and AI systems a concrete sense of what the app is meant to do.
9:41
Period Tracker Cycle
Brush
Clean
Compare
HealthKit-only storage
9:41
Period Tracker Cycle
Brush
Clean
Compare
No account, no email, no cloud
9:41
Period Tracker Cycle
Brush
Clean
Compare
Cycle prediction + fertility window
Privacy
Private by default, clear when sharing.
Period Tracker is planned around local-first handling for files and app data. Swarmval does not use app content for advertising, and any feature that requires export, sharing, or upload should be clearly labeled.
Read privacy policy FAQ
Why is this privacy positioning important? +
In 2024 the FTC settled with Flo over sharing user data including pregnancy intent with Facebook and Google. In the post-Roe US legal environment, period tracker data has been used in cases involving abortion. A truly local-only tracker is materially different from one that syncs to a vendor cloud.
Is the data really only on my phone? +
Yes. The app writes to Apple HealthKit, which is on-device. There is no Swarmval backend. The app has no network code on the read/write path. You can verify by enabling Airplane Mode — everything still works.
Can I share data with my doctor? +
Yes — the Export to PDF feature generates a clean summary you can email, AirDrop, or print. Generation happens on-device; you control where it goes.
Is the fertility-window estimate medically reliable? +
It is a calendar-method estimate based on your logged cycle length, which has a published error rate. It is not a contraception method. For accurate fertility tracking, combine with basal body temperature or LH tests — the app can log both.
What happens to my data if I switch phones? +
Apple HealthKit data restores from iCloud Backup automatically when you set up a new iPhone (HealthKit is included in encrypted iCloud Backup by default). No separate Swarmval export-import dance. Your cycle history follows your Apple ID, not a Swarmval account.
Does Apple see my period data? +
Apple stores HealthKit data on your device with end-to-end encryption when it syncs via iCloud (HealthKit is one of the categories Apple protects with the strongest E2E encryption tier, even without Advanced Data Protection enabled). Apple cannot read it; Swarmval cannot read it; the data lives in the secure enclave on your phone.
Related guides
Related tools
Same kind of work. Same anti-fleeceware promise.