Save your history
Write down your last few period start dates. For the full record, ask Flo for a copy: its privacy FAQ says you can access, update and delete it. In Anonymous Mode support can't help, because it can't tell who you are.


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Six apps that do what Flo does, compared on price, what's free, what they do with your data and how they handle cycles that change in your 40s. Every fact about the other apps comes from that company's own pages or its US App Store listing, checked on October 30, 2026.

The best Flo alternative for most people is Her Good Days. It covers what Flo tracks (a period calendar, estimated fertile days, pregnancy mode) and adds menopause symptoms, sleep, food and a doctor report PDF, all free, with no paid plan. Private mode lets you use it with no account, so nothing you log leaves your phone.
Clue is the like-for-like swap with a subscription on top. Apple Health is built into the iPhone, drip is a small open-source tracker, Natural Cycles is FDA-cleared birth control, and Stardust adds astrology.
Flo is big: about 2 million ratings on the US App Store, at 4.7 stars. People leave for three reasons.
The FTC finalized an order against Flo Health on June 22, 2021. It alleged that Flo shared health data from millions of users with marketing and analytics firms, including Facebook and Google, despite promising to keep it private. The order requires Flo to get consent before sharing health data, have an independent review of its privacy practices, and tell affected users.
Users then sued. Google settled in July 2025 and Flo in early August, and on August 5, 2025 TechCrunch reported that a California jury found Meta violated the state's privacy law by collecting Flo users' data.
Flo's privacy FAQ now says it has never sold user data, and Anonymous Mode lets you use the app with no name or email attached. The App Store label still lists purchases, location, identifiers and usage data under "Data Used to Track You".
Flo Premium holds the daily tailored insights, the Symptom Checker, fertility insights for trying to conceive, the 24/7 Health Assistant and the in-depth pregnancy features. The listing shows Premium prices from $1.99 to $59.99.
Flo has a Perimenopause Score and a Menopause Timeline. Women in their 40s often want hot flashes, night sweats, sleep and doctor visits at the center of the app instead of a fertility calendar.
Swipe the table sideways to see every column.
| App | Best for | Price, US (checked Oct 30, 2026) | Free tier | Stands out for |
|---|---|---|---|---|
| Her Good Days | Best overall: every stage, from periods to after menopause | Free, no paid plan | Everything | Private mode, doctor report PDF, pregnancy and menopause in one app |
| Flo (for reference) | Cycle, fertility and pregnancy | Premium $1.99 to $59.99 in the listing | Yes | Size, Anonymous Mode |
| Clue | A like-for-like swap | Clue Plus $9.99 a month or $39.99 a year | Yes | Modes from periods to perimenopause |
| Apple Health | iPhone users who want it built in | Free | Everything | End-to-end encrypted iCloud sync, 12-month PDF |
| drip | A minimal open-source tracker | Free | Everything | Open source, no account |
| Natural Cycles | Hormone-free birth control | $21.99 a month or $149.99 a year | No, core features need a plan | FDA-cleared birth control |
| Stardust | Astrology fans | $6.99 a month or $29.99 a year | Yes | Moon phases and zodiac cards |
We didn't score or star anything. For each app we read its US App Store listing, its Google Play listing where there is one, and the company's own privacy and help pages, and compared what someone leaving Flo asks about:
Store privacy labels are written by the developer and Apple doesn't verify them.
Her Good Days is one free app for every stage: periods, trying to conceive, pregnancy, the months after birth, perimenopause, menopause and after. The app has no outside analytics code, and Private mode keeps your logs in an encrypted database on your phone.
Best for: anyone who wants Flo's tracking without a subscription, and anyone whose cycles are starting to change.
Sign in and your logs sync to a new phone. Steps, sleep, weight and workouts can come in from Apple Health or Health Connect. Teen mode, for 13 to 17, has no weight-loss goals and no fertile-day features. Pricing: free.


See period tracking, perimenopause and privacy.
Clue covers the same ground as Flo: predictions, a long symptom list, and modes for periods, trying to conceive, pregnancy and perimenopause that you switch between (App Store, 4.8 from 407K ratings).
Pricing: free tier; Clue Plus is $9.99 a month or $39.99 a year. Limit: the deeper analysis sits behind Clue Plus. More in Clue alternatives.
Already on the phone. You log periods, symptoms, spotting and temperature, get period and fertile-window predictions, and export a PDF of the last 12 months. From 40, it can tell you when your patterns suggest perimenopause, and you can set a perimenopause or menopause stage (Apple support). With two-factor authentication on, cycle data in iCloud is end-to-end encrypted. Apple says Cycle Tracking should not be used as birth control. Limit: iPhone only, with no food or workout logging inside Cycle Tracking.
drip is free and open source, and "everything you enter stays on your device" (dripapp.org). It tracks bleeding, fertility, mood, pain and other symptoms, estimates fertility with the symptothermal method, and exports your data. Its App Store label reads "Data Not Collected", and it runs on iPhone and Android. Limit: a small project, with 59 ratings on its App Store page.
It suits you if contraception is the reason you track and you'll take a reading every morning. More in Natural Cycles alternatives.
A cycle tracker with a moon calendar, zodiac insights and daily cards for your moon, sun and rising sign, plus pregnancy and postpartum modes (App Store). Plans run $6.99 a month or $29.99 a year, and its label lists purchases, identifiers and usage data as used to track you. In 2022 TechCrunch reported that Stardust removed an end-to-end encryption claim from its privacy policy. More in Stardust alternatives.
Flo is in the table as the baseline. Cells come from each app's own pages and US listing.
Swipe the table sideways to see every column.
| App | Data used to track you (App Store label) | Use without an account | Perimenopause and menopause | Pregnancy | Age rating | Platforms |
|---|---|---|---|---|---|---|
| Her Good Days | No third-party tracking code | Yes, Private mode | Hot flashes, night sweats, brain fog, cycle gaps, doctor report | Week, kick counter, contraction timer | 13+, teen mode 13 to 17 | iPhone, Android |
| Flo | Purchases, location, identifiers, usage data | Yes, without an email, or in Anonymous Mode | Perimenopause Score, Menopause Timeline | In-depth features in Premium | 13+ | iPhone, Apple Watch, Android |
| Clue | Identifiers | Not stated | Perimenopause mode | Pregnancy mode | 13+ | iPhone, Android |
| Apple Health | Built into iOS | Yes | Stages, alerts from 40 | Pregnancy as a cycle factor | Comes with iPhone | iPhone, iPad, Apple Watch |
| drip | Data not collected | Yes | Not stated | Not stated | 13+ | iPhone, Android |
| Natural Cycles | Contact info | No | NC° Perimenopause | Not in this comparison | 16+ | iPhone, Apple Watch, Android |
| Stardust | Purchases, identifiers, usage data | Not stated | Not in the listing | Pregnancy mode | 13+ | iPhone, Android |
Do it in this order so your history comes with you.
Write down your last few period start dates. For the full record, ask Flo for a copy: its privacy FAQ says you can access, update and delete it. In Anonymous Mode support can't help, because it can't tell who you are.


Pick your stage, mark your past periods on the calendar and start logging. The Log menu follows your stage.


Cancel in your App Store or Google Play subscriptions: deleting the app doesn't stop the charge. Then delete your Flo account if you're not going back.


For most people leaving Flo, it's Her Good Days: it has no paid plan, it works with no account, and it keeps going from periods to pregnancy to menopause.
Choosing on privacy alone? Our period tracker privacy checklist lists what to look for in any policy.
Her Good Days. Every feature is free, with no paid plan: period calendar, estimated fertile days, pregnancy mode, menopause symptoms, sleep, food and a doctor report PDF.
Clue, if you want the same kind of app under another name. It has predictions, a long symptom list, and modes for trying to conceive, pregnancy and perimenopause, with Clue Plus for deeper analysis.
The FTC alleged that Flo shared users' health data with marketing and analytics firms, including Facebook and Google, after promising to keep it private. Its order, finalized on June 22, 2021, makes Flo get users' consent before sharing health data and have its privacy practices reviewed by an outside firm.
Her Good Days in Private mode needs no account and keeps every log on the phone, in an encrypted database. drip also keeps everything on the device. Apple Health encrypts cycle data on a locked iPhone, and end to end in iCloud with two-factor authentication on.
Only Natural Cycles, on this list, is cleared by the FDA as birth control, and it needs a temperature reading each morning. Apple says Cycle Tracking should not be used as birth control, and Her Good Days labels its fertile-day estimates Not birth control.