Balance vs Flo for Perimenopause: UK App vs US App

The Setup

Balance and Flo serve the same general audience — women who want to track their reproductive health — but from different angles. Balance was created by Davina McCall and a UK team specifically for menopause. Flo was built as a fertility and period tracker that later added menopause features as its user base aged.

Different Definitions of the Problem

Balance defines its core user as someone in menopause or the perimenopause transition. The content library, tracking prompts, and community features are built around that phase.

Flo defines its core user as someone managing fertility and regular cycles. The perimenopause features are additions to an existing product, not the foundation of it. That distinction shows in how each app handles irregular cycles.

The Data Privacy Gap

Flo’s 2021 FTC settlement is the most significant documented incident of health data misuse by a period-tracking app. The FTC found that Flo disclosed health data to Facebook’s app events tool and Google’s Firebase Analytics for advertising purposes — data that included pregnancy status and fertility plans.

Balance’s free tier requires some form of business model, but the app has not faced equivalent enforcement action.

Doctor Communication Gap

Neither app produces a structured report for a healthcare appointment. Women in perimenopause often see multiple providers — primary care, gynecology, endocrinology — and bringing organized symptom data to appointments is difficult without a dedicated export tool.

Horiva’s PDF export generates a timeline of logged symptoms, intensity ratings, and pattern observations formatted for medical review.

Verdict

Balance is the stronger choice for perimenopause-focused tracking, particularly for UK users. US users who want perimenopause-specific tracking will find Balance's healthcare context misaligned with their providers. Flo's data privacy history is the main reason to avoid it for sensitive symptom tracking.