Comparison

JustPeriod. vs LadyOne

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

JustPeriod.

Features
Read full description

JustPeriod. is a cycle tracker built on two simple principles: your cycle is nobody's business but yours, and the people close to you can be there — only on your terms. SHARE YOUR CYCLE, OR FOLLOW YOUR PARTNER'S • Connect with a one-time code — no sign-ups, no accounts to create. • Both partners can track their cycles side by side — for every kind of couple, including those where you both have a cycle. • Your partner sees exactly what you allow: days, symptoms, predictions or the current phase — every item is set separately. • Send a sign of support in one tap, and on period days share what you'd like, in your own words. • A quiet widget for the Home Screen and Lock Screen: a name, a phase and a countdown, and nothing for anyone nearby to read. • Turn sharing off at any moment — the data disappears from your partner's phone straight away. FOR REAL BODIES AND REAL LIFE • Dedicated modes for PCOS, endometriosis, fibroids and PMDD. • Predictions that account for your contraception (pill, IUD, implants and other methods). • Change your condition or your method at any time — the forecast adapts to the new answers immediately. • Honest support for an irregular cycle, with no illusion that a body should run like clockwork. • No hints about pregnancy and no pressure around fertility — there is simply nothing here for ovulation or conception. STATISTICS WITHOUT EMPTY PROMISES • A clear summary, your cycle history and a cycle map — all on one screen. • Average cycle and period length come with their real spread, not a single "perfect" number. • The intensity scale shows your usual flow and marks the days it departs from it. • The cycle map shows which days particular symptoms tend to fall on. PRIVACY AT THE FOUNDATION • All your data is kept on your device alone, protected by iOS encryption. • Optional sync and shared access are protected by end-to-end encryption: we could not read your data even if we wanted to. • No accounts, no ads, no analytics. Your data is never passed to anyone. • Face ID / Touch ID / PIN to get in, and an instant privacy screen. • Protected export with a password (PDF, CSV, JSON) and encrypted backups. • A simple, quick move of your history from Flo, Clue or WomanLog in a couple of minutes. EVERY BASIC FEATURE, AT ITS BEST • A calendar and predictions that fit your settings completely. • More than 20 built-in symptoms, and room to create your own. • Private notes on any day — kept in your history and included in exports. • Handy widgets for the Home and Lock Screens, plus an Apple Watch app. • Discreet reminders that give away no details in notifications. HONEST, TRANSPARENT PRICING Every basic feature — tracking, calendar, statistics, import, export, backups and reminders — stays free forever. Shared access and themes open with a single lifetime purchase: no subscriptions, no hidden charges. JustPeriod. Know your body. On your terms.

About

LadyOne

A private companion for tracking your menstrual cycle, fertility, and pregnancy. It offers personalized predictions and optional faith-based guidance, all stored securely on your device with no ads or trackers.

Highlights
  • Period and fertility tracking
  • Pregnancy week-by-week monitoring
  • Optional faith companion
  • Private, on-device data storage
  • iCloud sync
  • Multi-language support
Features
Read full description

LadyOne is a gentle, private companion for your cycle, your pregnancy, and everything in between — built to stay entirely on your own device. Your body, your data, your peace of mind. CYCLE & FERTILITY Track your period, understand your phases, and see what's ahead. Predictions learn your own rhythm — never a stranger's. PREGNANCY, WEEK BY WEEK Follow your baby's growth, log how you feel, and know what's normal — and, just as clearly, what's worth a call. FAITH, IF YOU WANT IT An optional worship companion that understands your cycle and its rulings — entirely yours to turn on, or leave off. PRIVATE BY DESIGN • Everything you log lives on your iPhone — not on our servers, because we don't have any. • If you use more than one device, Apple's private iCloud sync carries it between them. We never see it. • No ads, no trackers, nothing sold. There is no third party in the room. • Erase everything, anytime — from the app, your iCloud, and Apple Health, in a single choice. SPEAKS YOUR LANGUAGE Available in English, Arabic, Persian, Chinese, Hindi, Russian, Spanish, Portuguese, Indonesian, French, Turkish and Urdu — with full right-to-left support, so every language feels native. No account required. Private by design. LADYONE PLUS LadyOne is free to use, and your cycle insights stay free. LadyOne Plus adds the pregnancy weeks with their trends, plus full doctor and prenatal reports as PDF — as a monthly or yearly subscription. Payment is charged to your Apple ID at confirmation of purchase. Your subscription renews automatically unless canceled at least 24 hours before the end of the current period. Manage or cancel anytime in your App Store account settings. Privacy Policy: https://ladyone.app/privacy Terms of Use: https://ladyone.app/terms

Screenshots

JustPeriod.4 screens
LadyOne4 screens

Verdict

The call

JustPeriod. and LadyOne are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. JustPeriod. sells 1 one-off in-app purchase and LadyOne sells 2 in-app purchases, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

JustPeriod. ships an update every 3 weeks, LadyOne every 10 days. The most recent releases landed on October 24, 2026 and October 29, 2026 respectively.

ScorecardNo meaningful differences
JustPeriod. versus LadyOne: the parameters behind the verdict, then further details
ParameterJustPeriod.LadyOne
PriceFreeFree
Rating—5.0 (2 ratings) — better
Number of ratings—2 — better
Update frequencyEvery 3 weeksEvery 10 days — better
AdsNoNo
In-app purchasesYesYes
Monetization—Freemium
DevicesiPhoneiPhone
Requires iOS17.017.0
Further details — not scored
Size20 MB28 MB
Age rating12+12+
DeveloperAiVaxOrbit Next Labs L.L.C-FZ

In-app purchases

1 purchases

JustPeriod.

One-time1
  • Lifetime Access$59.99
2 purchases

LadyOne

Subscriptions2
  • Monthly$7.991 Month
  • Yearly$39.991 Year

Questions

Is JustPeriod. free?
JustPeriod. is free to download, with in-app purchases available.
Is LadyOne free?
LadyOne is free to download, with in-app purchases available.
Do JustPeriod. or LadyOne have ads?
Neither JustPeriod. nor LadyOne shows ads.
Which is updated more often, JustPeriod. or LadyOne?
JustPeriod. ships an update every 3 weeks, and LadyOne every 10 days. Most recently, JustPeriod. was updated on October 24, 2026 and LadyOne on October 29, 2026.

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