Period Tracker App Pricing Compared: The Real Cost of Free
TLDR
Period trackers range from $0 to $12.99/mo. Ad-supported free apps like Flo have historically monetized reproductive health data — the FTC took enforcement action against Flo in 2021, and a $59.5M class action resolved in September 2025. On-device trackers like Floriva ($2.99/mo), Euki (free), and Drip (free, Android) store nothing server-side.
Period Tracker Market
Free–$12.99/moper month
Floriva
From $2.99/monthper month, no data sold
Period Tracker Market Pricing Tiers
| App | Free Tier? | Paid Price | Data Sold? | On-Device? |
|---|---|---|---|---|
| Flo | Yes (ad-supported) | $4.99/mo or $39.99/yr | FTC action 2021; $59.5M settlement 2025 | No |
| Clue | Yes (no ads) | $9.99/mo or $59.99/yr | No enforcement found | No |
| Natural Cycles | No | $12.99/mo or $99.99/yr | No enforcement found | No |
| Euki | Yes (full features) | No paid tier | No (nonprofit-funded) | Yes |
| Drip | Yes (full features) | No paid tier | No (open source) | Yes (Android only) |
| Stardust | Yes (limited) | $7.99/mo or $69.99/yr | States not selling | No |
| Spot On | Yes (full features) | No paid tier | No (Planned Parenthood) | No |
| Glow | Yes (limited) | $9.99/mo or $59.99/yr | No enforcement found | No |
| Ovia | Yes (limited) | Free (employer-sponsored) | Shared with employers (disclosed) | No |
| Premom | Yes (limited) | $4.99/mo | FTC action 2023 | No |
| Floriva | No | $2.99/mo or $24.99/yr | No (on-device architecture) | Yes |
Hidden Costs You Won't See on the Pricing Page
- ⚠ Ad-supported free apps monetize reproductive health data through behavioral advertising — the product is your data, not cycle predictions
- ⚠ Flo's free tier shared user health data with Facebook and Google SDKs (FTC enforcement action, 2021; $59.5M class action settled 2025)
- ⚠ Premom shared data with Chinese analytics firms Umeng and Jiguang (FTC enforcement action, 2023)
- ⚠ Server-based apps — including paid tiers — store reproductive data that can be subpoenaed by law enforcement
- ⚠ Privacy policies for free apps can change without user consent
The Market: $0 to $12.99/mo
The period tracker market splits cleanly into three pricing categories:
Free, data-monetized: Flo’s free tier, historically. The app is free because user health data funds advertising revenue. The FTC documented this with Flo in 2021. It is the oldest business model in consumer tech applied to reproductive health data.
Free, mission-funded: Euki, Drip, Spot On. These apps charge nothing because a nonprofit or open-source community funds them. No data monetization — but no revenue model means sustainability depends on grants and community maintenance.
Paid subscription: Flo Premium ($4.99/mo), Clue Plus ($9.99/mo), Stardust ($7.99/mo), Glow ($9.99/mo), Natural Cycles ($12.99/mo), Floriva ($2.99/mo). The subscription covers server infrastructure, app development, and in some cases FDA clearance and clinical research.
The Two Verified Data-Sharing Incidents
Of all the apps in this comparison, two have documented FTC enforcement actions:
Flo Health (2021): The FTC found Flo shared health data — period dates, pregnancy status, symptoms — with Facebook and Google advertising SDKs without user consent. The FTC issued a consent order. In September 2025, a combined $59.5M class action resolved claims by affected users.
Premom / Easy Healthcare (2023): The FTC found Premom shared sensitive health and location data with Chinese analytics firms Umeng and Jiguang without adequate disclosure.
These are the only two period tracker companies with FTC enforcement on record for data sharing as of early 2026.
What the Comparison Table Reveals
The table above shows that “free” correlates with “server-based” in almost every case. The exceptions — Euki and Drip — are free and on-device, but both have structural limitations (no sync, platform restrictions, or grant-dependent continuity).
Floriva at $2.99/mo is the only tracker that combines on-device storage, iOS and Android support, and encrypted cross-device sync at a price below the market average for paid apps.
Source: Reuters, September 25, 2025
Source: FTC case documentation
Source: App store pricing, March 2026
Which period tracker apps have been caught selling user data?
Two period trackers have faced FTC enforcement for sharing user data without consent. The FTC took enforcement action against Flo Health in January 2021 for sharing health data — including period dates and pregnancy status — with Facebook and Google advertising SDKs. Premom (Easy Healthcare) was subject to FTC enforcement in May 2023 for sharing data with Chinese analytics firms Umeng and Jiguang. A $59.5M class action against Google, Flo, and Flurry was settled in September 2025.
What is the cheapest private period tracker?
Euki and Drip are free and store data on-device. Euki supports iOS and Android; Drip is Android-only. Both are limited by no cross-device sync. Floriva is $2.99/mo and adds encrypted sync with iOS and Android support. Among paid on-device trackers, Floriva is the most affordable option.
What does 'on-device storage' mean for period trackers?
On-device storage means your cycle data is stored only on your phone or tablet — it never reaches the app developer's servers. This means there is no server record to subpoena, no database to breach, and no company to change its privacy policy. Apps with server-side storage — even those with strong privacy policies — have a server record that is technically accessible via court order.
Is paying for a period tracker worth it?
The value of a paid period tracker depends on what you are paying for. Flo Premium at $39.99/yr removes ads and adds Anonymous Mode but leaves data on Flo's servers. Natural Cycles at $99.99/yr adds FDA clearance for contraception. Floriva at $24.99/yr stores data on your device — the price buys an architectural privacy guarantee, not just a policy promise.
Tired of paying for an app that sells your data?
Floriva starts at $2.99/month. No data sold, no account required.
| Period Tracker Market | Floriva | |
|---|---|---|
| Pricing model | Free–$12.99/mo | From $2.99/month |
| Data sold | Documented | Never |
| Free trial | Limited free tier | 14-day full trial |
Floriva is From $2.99/month — and stores your data on-device, not on a server.
Frequently Asked Questions
How does Ovia handle user data?
What happened with Flo and the FTC?
What happened with Premom and the FTC?
Which period tracker is best for users in states with abortion laws?
Ready to track with real privacy?
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