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Published by Floriva · Updated 2026-04-16 · How Floriva checks its guides

How to Switch from Natural Cycles to a Private Tracker

Switching from Natural Cycles? Here's the export, deletion, and CCPA/GDPR process, plus the medical-use caveat to discuss with your doctor.

Natural Cycles is FDA-cleared as birth control. Switching for privacy or cost is fine, but if you're using it as contraception, consult your doctor first. Here's the export and deletion process.

Why switch from Natural Cycles

Natural Cycles sits in a different category than Flo or Clue. It is an FDA-cleared digital contraceptive marketed on clinical effectiveness rather than convenience. Users who choose NC are usually paying for the contraceptive claim, not for cycle tracking alone.

The two most common reasons users switch are cost and privacy. NC is expensive if you stopped relying on it for birth control and are mostly using it for cycle forecasting. And while NC's privacy posture is better than Flo's, it still stores cycle and basal body temperature data on company servers. That server-side copy carries the same subpoena, breach, and policy-change risk as any cloud tracker.

If you are switching for privacy, on-device trackers resolve the server-side risk. If you are switching for cost, free on-device trackers remove the annual fee. Either way, a clean migration keeps your history portable and minimizes surprise.

For more on NC's specific privacy tradeoffs, see our Natural Cycles privacy alternative overview.

Important: if you use NC as contraception, talk to your doctor first

Natural Cycles is cleared by the FDA as a Class II contraceptive device. Euki, Floriva, Drip, and most other private trackers are not. If you currently rely on NC as your birth control method, switching apps means switching contraceptive methods, and that decision belongs with your clinician. Nothing in this guide is medical advice. Plan the method change with a doctor before you delete the NC account, not after.

Step 1: Export your cycle history

In Natural Cycles, tap your profile icon in the top-left, then Settings, then Export Data. NC emails a CSV within 24-48 hours. The export covers cycle dates, basal body temperature readings, and fertility window history.

Open the CSV in a spreadsheet. The cycle start dates and BBT log are what you will use to seed the new tracker in step 7.

Step 2: Delete your account

Go back to Settings, then Profile, then Delete Account. NC confirms through email verification. Because NC is FDA-cleared, some data may be retained in de-identified form for regulatory reporting, but the identifiable account is removed.

Step 3: Submit a CCPA/GDPR data request

Email [email protected] with subject "GDPR/CCPA Data Deletion Request." State your NC account email and invoke your right under GDPR Article 17 (EU/UK) or CCPA Section 1798.105 (California). Because NC is an FDA-cleared medical device, explicitly ask for a breakdown of what is deleted vs. what is retained under medical-record rules. This gives you a written record for your own files.

NC has 30 days to respond under GDPR and 45 days under CCPA. Save the full email thread.

Step 4: Verify deletion

Wait 48 hours after step 2. Try to log in with your old NC credentials. A deleted account returns an authentication error. If login still works, the deletion did not process and step 2 should be repeated.

For context on what "deletion" actually covers across cycle trackers, see our guide on what happens to period data when you delete an app.

Step 5: Choose your replacement

The right replacement depends on why you are switching.

Floriva is paid, polished, and on-device. Cycle data stays on the phone. Good fit if you want a tracker that looks and feels like NC without the cloud storage or the annual subscription cost.

Euki is free, on-device, and maintained by a reproductive health nonprofit. Good fit if you want zero cost and are comfortable with a less polished interface.

Neither is FDA-cleared as contraception. If you were using NC for birth control and cleared the method change with your doctor in step 1, either option works for cycle tracking alone. The private period tracker roundup has the full comparison.

Step 6: Start fresh in the new app

Open the NC CSV. Pull your last 3-6 cycle start dates and any BBT readings you want to retain. Enter the cycle start dates during the new app's setup flow. If the tracker supports BBT logging, you can carry forward those readings as well.

Prediction algorithms need 2-3 recorded cycles to stabilize. Seeding the history cuts the warm-up period. Once the new app has enough recorded cycles to feel accurate, delete the NC CSV from your local disk. The data you did not want on a server should not sit unprotected on your computer either.

For a deeper read on why on-device storage changes the privacy model, see the on-device storage explainer.