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All comparisons

Soso vs. Flo

A first-period app or a platform for the whole reproductive-health journey?

Both track cycles, but they serve different moments. Soso is built around first periods and early cycles; Flo covers a much broader reproductive-health journey, from the first period through perimenopause.

Reviewed Sep 17, 2026

Choose Soso if…

Families looking for a calm first-period experience without fertility, pregnancy, or adult-oriented modules.

Choose Flo if…

People who want fertility, pregnancy, postpartum, perimenopause, wearable integrations, and a broad health library.

Side-by-side comparison

The criteria that matter most for early cycles.

Primary audience
SosĂ´:Tweens, first cycles, and their families
Flo:From first period through perimenopause
Before the first period
SosĂ´:A dedicated first-period journey with preparation content and quizzes
Flo:Its official positioning starts at the first period; pre-period preparation is not its central promise.
Other life-stage features
SosĂ´:No fertility, pregnancy, or perimenopause modules
Flo:Fertility, pregnancy, postpartum, and perimenopause support are part of the platform.
Privacy
SosĂ´:No social feeds or chats; privacy is part of the product from the start
Flo:Anonymous Mode is available, with limitations for support, subscriptions, and wearables.
Advertising
SosĂ´:No ads
Flo:Free essentials plus Premium; the cited pages do not make a market-specific ad claim.
Account and sync
SosĂ´:The main experience does not depend on an account
Flo:Account-based features are available; Anonymous Mode is an alternative with trade-offs.
Cycle tracking
SosĂ´:Simple tracking for flow, mood, symptoms, and cycle history
Flo:Personalized cycle and symptom tracking, patterns, predictions, and reports.
Education
SosĂ´:Puberty, first periods, and early cycles in age-appropriate language
Flo:A broad health library and expert-led content.
Best fit when…
SosĂ´:The priority is a calm, age-appropriate first-period experience
Flo:The priority is broader reproductive-health coverage

What changes in practice

Specialization beats feature count

Soso does not need to reproduce Flo’s full health platform. Its advantage is removing choices that do not belong in a first-period experience.

Flo is the better broad-life tracker

Fertility, pregnancy, postpartum, reports, and wearables are real reasons to choose Flo when those needs matter.

Frequently asked questions

Which is better for a first period?

Soso is the more focused choice for preparation and early cycles. Flo is stronger when the person also wants broader reproductive-health features.

Does Soso include pregnancy tracking?

No. Soso stays focused on puberty, the first period, and early cycle tracking.

Start the first cycle without drama

A gentle, educational and ad-free space to learn and track at your own pace.

Download Soso

Sources and transparency

Each source says what was checked and when it was consulted.

  • Soso official site

    The site presents Soso as a gentle, educational period tracker for first-cycle journeys.

    Accessed Sep 17, 2026

  • Soso on the Brazil App Store

    The listing describes an age-appropriate product without adult content or ads, and lists R$99.90 yearly and R$24.90 monthly plans.

    Accessed Sep 17, 2026

  • Flo — About

    Flo describes support from the first period through perimenopause, including fertility and pregnancy guidance.

    Accessed Sep 17, 2026

  • Flo Premium

    The official help page distinguishes free essentials from Premium content, reports, and tools.

    Accessed Sep 17, 2026

  • Flo Anonymous Mode

    Anonymous Mode removes personal identifiers but limits some support, subscription, and wearable features.

    Accessed Sep 17, 2026