Femometer Fertility Tracker

What it does

Femometer is a comprehensive health and fertility tracker designed for women. The app's primary function is to monitor menstrual cycles, predict fertile windows, and forecast ovulation to help users either achieve or avoid pregnancy. Beyond simple tracking, it provides a detailed platform for logging a wide array of symptoms, lifestyle factors, and test results, using that data to generate personalized insights and analysis.

Where it shines

Femometer excels at making complex data logging feel simple and accessible. The 'Quick Log' feature, accessible via a prominent plus button on the home screen (01:25), is a prime example. It centralizes all daily tracking into a single, well-organized, scrollable view. This removes significant friction from the core loop of the app.

Another strength is its layered approach to data analysis. A user can get a quick, visual summary from the home screen's cycle wheel (01:21), dive into a traditional calendar view (06:40), or explore deep analytical charts in the 'Cycle Insights' section (06:51). This tiered structure serves both novice and expert users effectively without overwhelming either group.

UX highlights

Centralized Logging: The 'Quick Log' screen (01:27) acts as a powerful hub for all daily inputs. This design choice simplifies the primary user action and encourages more complete data entry.
Multiple Data Visualizations: The app provides various ways to interpret data, from the main cycle wheel to calendars and detailed charts (07:55), catering to different user preferences for information consumption.
Integrated Community: The 'Tribe' section (10:51) turns a utility app into a social platform, building a community around shared experiences and increasing user retention.
Clear Information Hierarchy: Complex information, like hormone level charts and cycle statistics, is nested within dedicated 'Analysis' sections, keeping the primary interface clean and focused.
Actionable Reminders: The app provides highly specific reminders and notifications based on logged data, such as an alert that the user's predicted ovulation day has changed (06:23).
Data Export: Offering a PDF data export feature (09:07) is a user-centric choice that provides real value, allowing users to share their data with healthcare providers.

Monetization & growth

The app presents a soft paywall with a free trial offer early in the onboarding flow (00:41), immediately after the user has invested time in the personalization quiz. The paywall itself is visually compelling, using the app's core cycle graphic to demonstrate value. The offer is a single annual plan. After subscribing, the user is immediately shown a confirmation screen (01:01), reinforcing the purchase. The 'Prime' subscription status is prominently displayed in the user's profile, constantly reminding them of the value they're receiving.

Who it’s for

Femometer is designed for women who want to actively track and understand their menstrual cycle. Its feature set suggests two primary user groups. The first is individuals trying to conceive, who would benefit from the detailed fertility predictions, LH test logging, and BBT charting. The second group includes those who simply want to monitor their period and understand their body better, using the symptom and mood logging to identify patterns. The community aspect also appeals to users seeking support and shared experiences.

Notes & opportunities

The initial onboarding flow presents three separate system permission prompts in quick succession (Tracking, HealthKit, Notifications), which could feel overwhelming for some users. Spacing these out or providing more context via warmup screens might reduce initial friction. Additionally, while the analysis section is powerful, some charts, like the BBT curve overlay (09:02), could benefit from better empty states or guidance when there isn't enough data to display anything meaningful.