Femometer app: is it free, what Femometer Prime costs and a free alternative
BONGMI LIMITED · Health & Fitness · ★ 4.9, 71K ratings in the US App Store · Free to download
AppHunt has no promo code for Femometer, but we have one for the alternative below.
Best free alternative to Femometer: Rivula
Femometer's listing doesn't say what its free version includes, and its paid plans are listed at $9.99 monthly to $49.99 yearly. Rivula, from the AppHunt team, predicts your next period and fertile window as a range, without an account or ads, and its logging is free; AppHunt has a promo code that unlocks Rivula Pro. With the AppHunt promo code you get the full version of Rivula for free, for good.
The Femometer app is free to download, but its listing doesn't say what the free version includes; it describes a subscription policy with a $9.99 monthly price, a $19.99 quarterly one and $49.99 for a year, and mentions no trial. The US In-App Purchases section lists Femometer Prime at six prices from $6.99 to $49.99, plus Femometer Period Tracker Pro at $19.99 and Advanced Fertility Insights at $29.99. These are US App Store prices on November 2, 2026, and they may change.
Is Femometer free?
Femometer is free to download on iPhone, but neither its App Store listing nor its website says what the free version includes, how long it lasts or whether there is a trial. The listing's feature list covers the period calendar, temperature, ovulation and pregnancy tests, 200-plus symptoms, reminders, a PDF export for doctors and Apple Health sync, without marking any of it as paid. The paid names, Femometer Prime and Femometer Period Tracker Pro, don't say what they unlock, and reviewers in 2025 and 2026 don't agree on what the free version offers; several say they have paid for years. Femometer's website today mostly sells smart rings, which pair with the app.
How much does Femometer cost?
The description's subscription policy gives three plans: $9.99 a month, $19.99 a quarter and $49.99 a year. The US App Store page lists ten purchases: Femometer Prime at $6.99, $9.99, $11.99, $16.99, $19.99 and $49.99 (twice), Femometer Period Tracker Pro at $19.99, Femometer Ovulation Calculator at $9.99 and Advanced Fertility Insights at $29.99. It doesn't say which price covers which period or what separates Prime from Pro. Reviewers mention paying for years, a double charge that Femometer and Apple didn't fix, and a points system for earning free premium time that, they say, has been sold out for months. Because the listing is vague, check the plan name and price on Apple's purchase sheet before you confirm. These are US App Store prices on November 2, 2026, and they may change.
| Femometer Ovulation Calculator | $9.99 |
| Femometer Prime | $49.99 |
| Femometer Prime | $6.99 |
| Femometer Prime | $11.99 |
| Femometer Period Tracker Pro | $19.99 |
| Femometer Prime | $19.99 |
| Femometer Prime | $9.99 |
| Advanced Fertility Insights | $29.99 |
| Femometer Prime | $16.99 |
Rivula or Femometer: how they compare
Rivula, made by the AppHunt team, covers the tracking itself without an account. Its predictions come as ranges that narrow as you log, with the fertile window and ovulation worked out from your own cycles, and positive LH tests and temperature readings sharpen the estimate. Logging, the calendar, reminders, widgets, Apple Health sync, backups and the cycle, conception, pregnancy and perimenopause modes are free, and nothing leaves your iPhone. Rivula Pro adds pattern insights, temperature and LH charts and a PDF report for your doctor; it costs $29.99 a year, $5.99 a month or $59.99 once, and AppHunt has a promo code at apphunt.app/app/rivula-pro that unlocks it. Rivula does less than Femometer, though. It has no courses or articles, a shorter symptom list (20-plus against Femometer's 200-plus), no Android version and no thermometer or ring pairing, so a temperature goes in by hand or from Apple Watch. It needs iOS 17 or later, and it is new, with no ratings yet against 70,943. Rivula is not contraception and gives estimates, not medical advice.
Other free alternatives to Femometer
Flo ·One app for every life stage
Clue ·Detailed symptom logs and birth control tracking
Period Tracker Period Calendar ·Birth control and pill reminders in the same app
Stardust ·People who like moon phases and astrology with their tracking
About Femometer
Femometer, from BONGMI LIMITED, has been in the App Store since August 2017 and has 70,943 ratings averaging 4.9 in the US store. Its listing describes a period, ovulation and fertility tracker with a calendar that predicts your period and fertile window, basal body temperature and LH curves, tests and symptoms, pregnancy tracking, courses and articles, and a PDF export for your doctor. It runs on iOS 15 or later in twelve languages, and version 5.62.6 came out on October 26, 2026. Its website sells smart rings that sync with the app, and reviewers also mention a Femometer thermometer. It suits people trying to conceive who chart temperature and ovulation tests and are prepared to pay for the full set of insights.
Free promo codes right now
Acord: Guitar Tuner, Metronome
Free Forever · 14,997 codes left
70mm: MKV Video & Media Player
Free Forever · 14,996 codes left
Unda – Water Eject & Cleaner
Free Forever · 14,999 codes left
ai Food Scanner - FOOD IQ diet
Free Forever · 9,968 codes left
ai Food Scanner - FOOD IQ diet
1 Year Free · 10,000 codes left
ai Food Scanner - FOOD IQ diet
1 Month Free · 10,000 codes left
Femometer: questions and answers
Is the Femometer app free?
Femometer is free to download, but it doesn't say what is free. Its listing and website describe no free tier, only a subscription policy and a list of purchases. US reviews from 2025 and 2026 are mostly from people who already pay or own a ring, so they don't settle it.
How much does Femometer cost?
The listing's subscription policy gives $9.99 a month, $19.99 a quarter and $49.99 a year. The US App Store lists Femometer Prime at $6.99, $9.99, $11.99, $16.99, $19.99 and $49.99, Femometer Period Tracker Pro at $19.99, Femometer Ovulation Calculator at $9.99 and Advanced Fertility Insights at $29.99, without naming the periods. US prices on November 2, 2026; they may change.
Is there a Femometer promo code?
AppHunt has no promo code for Femometer, and its listing and website mention no codes or coupons. Reviewers say the app has a points system that can be traded for free premium time, though several say that option has been sold out for months; we haven't verified it. If you want free tracking, AppHunt has a promo code that unlocks Rivula Pro at apphunt.app/app/rivula-pro.
Does Femometer have a free trial?
Femometer's listing doesn't mention one. Check Apple's purchase sheet, which shows a trial and the price that follows it before you confirm. If you start a trial, cancel at least 24 hours before it ends.
How do I cancel Femometer?
The listing says to manage cancellation in your Apple account settings: on an iPhone, open Settings, tap your name, then Subscriptions, and choose Femometer. Deleting the app does not cancel it, and one reviewer who deleted the app found that the account was gone when they reinstalled, with a paid subscription still running.
What do reviews of the Femometer app say?
Femometer has 70,943 ratings averaging 4.9 in the US App Store. The 2025 and 2026 reviews praise its prediction of period dates and the way it helps people trying to conceive, and many are written by ring owners. The complaints are sync problems, a slow or failing app, lost data after a reinstall, an ad for the ring shown before the app opens, slow customer service and double charges.
Is Femometer a birth control method?
Femometer's listing calls its medical information an educational resource and tells you to ask a physician before health decisions. Rivula says the same about itself: it is not contraception, and its predictions are estimates.
What is the best free alternative to Femometer?
Rivula, an AppHunt studio app, predicts your next period and fertile window as a range, with logging, reminders, widgets and Apple Health sync free, no account and no ads. AppHunt has a promo code for its paid Rivula Pro. It has no ring or thermometer pairing, no courses and no Android version, and it has no ratings yet. Our list of free period tracker apps has more options.
AppHunt is not affiliated with BONGMI LIMITED. Prices are US App Store prices checked on November 2, 2026 and can change; your country’s store may show different prices.