Honest comparison of WomensPal vs Flo period tracker — features, price, privacy, and PCOS support. Which one should you use in 2026?
Flo is the most downloaded period tracker in the world. WomensPal is 100% free and built specifically for women with irregular cycles, PCOS, and those trying to conceive. This comparison looks at what actually matters: price, privacy, features, and how each app handles real cycles.
| Feature | WomensPal Free | Flo |
|---|---|---|
| Price | 100% free, always | Free tier + $39.99/yr Premium |
| PCOS / irregular cycles | Any cycle length, PCOS symptom log | Basic — assumes ~28 days |
| BBT charting | Included free | Premium only |
| Fertility / fertile window | Included free | Limited on free tier |
| Pregnancy mode | Included | Included |
| Symptom logging | Full — energy, mood, pain, skin, hair | Some free, more on Premium |
| Data privacy | No data selling, no ads | FTC settlement 2021 (data shared with advertisers) |
| Ads | None | Yes, on free tier |
| AI health insights | Pattern-based insights | AI-powered (paid) |
| Community features | Not applicable | Forum / community |
| Data export | Yes | Premium only |
In 2021, Flo reached a settlement with the Federal Trade Commission after the FTC found that Flo had shared users' period and pregnancy data with Facebook and Google — without disclosing this in its privacy policy. For an app where people track sensitive health information including miscarriages, fertility struggles, and health conditions, this was a serious breach of trust.
Flo has since updated its privacy practices. But for many users — particularly those tracking conditions like PCOS, fertility challenges, or pregnancy — the incident raised legitimate questions about what happens to their health data.
WomensPal was built with a different model: no advertising revenue means no incentive to share your data. There are no ads. There is no premium tier. The app is free because it's designed to be free.
This is the biggest practical difference between the two apps. Flo's predictions are built around a standard 28-day cycle. If your cycle is 35, 45, or 60 days — or if it varies significantly month to month — Flo will consistently tell you your period is "late."
WomensPal tracks what actually happens. It learns your cycle from your actual data, handles cycles of any length, and lets you log PCOS-specific symptoms like androgen-driven acne, energy crashes, and insulin resistance patterns.
For a woman with PCOS, this isn't a minor difference — it changes whether the app is useful at all.
Basal body temperature charting is one of the most reliable ways to confirm ovulation. Flo restricts BBT charting to its Premium tier (around $40/year). WomensPal includes it for free, including the charting interface that shows your temperature pattern across your cycle.
Have PCOS or irregular cycles · Want a fully free option · Care about data privacy · Need BBT charting · Want to log detailed symptoms · Are TTC and want fertile window tracking
Have regular ~28-day cycles · Want AI-powered predictions and are willing to pay · Want a large community forum · Don't mind ads on the free tier
Flo is a capable app that works well for women with regular cycles and who are willing to pay for Premium features. For women with PCOS, irregular cycles, or those who prioritise data privacy, WomensPal is the stronger choice — and it costs nothing.
WomensPal handles irregular cycles, PCOS symptoms, BBT charting, and fertility tracking. 100% free. No credit card. No data selling.
Start tracking →Yes — WomensPal is 100% free with no subscription tier, no premium features, and no credit card required. Everything is accessible to all users.
Yes. In 2021, Flo settled with the US Federal Trade Commission (FTC) after sharing users' health data — including period and pregnancy information — with Facebook and Google without disclosing this to users.
WomensPal is better for PCOS because it handles cycles of any length without assuming a 28-day cycle. It also has dedicated PCOS symptom logging. Flo works on typical cycles but its predictions are less reliable for irregular PCOS cycles.
Yes. WomensPal includes BBT (basal body temperature) charting, which Flo restricts to its paid tier.