LadyData vs Peri AI
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
LadyData
This app helps women track their menstrual cycles and fertility. It allows for detailed recording of temperature, symptoms, and other cycle events to understand personal patterns. Designed for those practicing fertility awareness, it offers a clear, private way to monitor reproductive health.
- Cycle tracking
- Basal body temperature recording
- Cervical mucus tracking
- Symptom logging
- Pattern recognition
- Privacy-focused design
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LadyData is not your average period tracker. Designed for women practicing fertility awareness and cycle awareness, this powerful app offers cycle tracking without compromise. Record basal body temperature, cervical mucus, cycle events, and custom symptoms, all in a clean, intuitive charting interface. Perfect for irregular cycles, PCOS/PMOS, and other cycle conditions. https://ladydata.co/legal/privacy https://ladydata.co/legal/terms - Built with privacy in mind - Get clear pattern recognition to understand your cycle - Ideal for users of the Sympto-Thermal Method, Sensiplan, or Taking Charge of Your Fertility - Understand your cycle phases and patterns, with no fluff, ads, or hidden agendas Whether you're learning fertility awareness, tracking for conception, or deepening your body literacy, LadyData is your daily companion in self-knowledge.
Peri AI
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Track your period, symptoms, and cycle - just by chatting. Peri is the first cycle tracker where you don't tap buttons or fill out forms. Just type how you feel in your own words, send a voice message, or even share a photo — and Peri understands, logs everything, and keeps your calendar up to date automatically. TRACK YOUR PERIOD BY CHATTING Tell Peri when your period starts or ends, and it's instantly marked on your calendar. Mention it in passing - Peri catches it. Say "my period started yesterday" and it's done. No forms, no date pickers. YOUR CALENDAR, AUTO-FILLED Swipe to see your personal calendar with periods, ovulation predictions, fertile windows, and logged symptoms - all filled in from your conversations. Every day is a snapshot of how you felt. LOG SYMPTOMS IN YOUR OWN WORDS "Headache since morning and I'm exhausted" - that's all you need to type. Peri extracts the symptoms and logs them for you. Works with text, voice messages, and photos. IMPORT FROM ANOTHER APP Switching from Flo, Clue, or another tracker? Send a screenshot and Peri reads your data and imports your history. UNDERSTAND YOUR CYCLE Peri connects how you feel to where you are in your cycle. It learns your personal patterns over time and helps you understand your body better - phase by phase, cycle by cycle. BABY & CHILD TRACKING Log your child's symptoms and milestones through the same simple chat. Peri knows your baby's age and gives context for every stage. WORKS YOUR WAY Type a message. Record a voice note. Attach a photo or a document. Peri handles it all - in any language you speak. — Peri AI is a wellness tracking tool. It is not a medical device and does not provide medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider for medical concerns. Terms of Use: https://foul-floss-25c.notion.site/Terms-of-Use-Peri-AI-34af80c6dccc807f8f67db39375b6de1 Privacy Policy: https://foul-floss-25c.notion.site/Privacy-Policy-Peri-AI-34af80c6dccc80b286ddeece1ea447aa Apple Standard EULA applies: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is iOS requirement: LadyData at 15.1 against Peri AI's 18.0. On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. LadyData sells 2 in-app purchases, starting at $4.99 per month and Peri AI sells 2 in-app purchases, starting at $24.99 per month. Whichever you choose, the download price is not the number that matters.
LadyData ships an update every 3 weeks, Peri AI every 2 weeks. The most recent releases landed on October 10, 2026 and October 15, 2026 respectively.
| Parameter | LadyData | Peri AI |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (14 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 14 — better | — |
| Update frequency | Every 3 weeks | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.1 — better | 18.0 |
| Further details — not scored | ||
| Size | 56 MB | 59 MB |
| Age rating | 12+ | 12+ |
| Developer | Dance Party | Eduard Baksheev |
In-app purchases
LadyData
- Monthly Subscription1 Month trial$4.991 Month
- Annual LadyData Subscription1 Month trial$29.991 Year
Peri AI
- Peri AI Premium Monthly3 Days trial$24.991 Month
- Peri AI Premium Annual14 Days trial$119.991 Year









