Soso App IconSoso
All comparisons

Soso vs. My Calendar

Soso has no fertility data. My Calendar shows it, unless you turn on Simple Mode.

Soso is made for a girl getting ready for her first period, so it has no fertility data and nothing to configure. My Calendar is a highly customisable tracker with fertility, pregnancy and perimenopause modes, and a Simple Mode that hides the fertility data, which it calls ideal for teens. It is rated 13+ on the App Store and contains ads.

Reviewed Oct 8, 2026

Soso is best for

A girl getting ready for her first period, or in her first years of cycles, in an app with no adult modes to hide and no ads.

My Calendar is best for

People who want 100+ tracking categories, themes, password lock, and fertility, pregnancy, perimenopause and partner features in one app.

Our verdict

For a girl getting ready for her first period, choose Soso: it was built for her from the start, with no ads and an experience that begins before her period does. My Calendar is the more configurable app for adults.

Side-by-side comparison

The criteria that matter most for early cycles.

Made for
Soso:Tweens before and after their first period, and their parents. Rated 9+ on the App Store.
My Calendar:Rated 13+ on the App Store. Its Simple Mode is described as ideal for teens.
Before the first period
Soso:A whole experience for girls who have not had their first period yet. She gets an estimate of when it may arrive, and the window narrows as she logs the signs of puberty. It is an estimate, not a date: a first period can come earlier or later.
My Calendar:My Calendar’s predictions come from periods already logged. It has no estimate of a first period.
Puberty body changes
Soso:She follows her breast and pubic hair development by picking, in private, the closest of a set of illustrated stages, and logs her height each month.
My Calendar:Not offered.
Privacy
Soso:App Store label: no data used to track her and nothing linked to her identity. Her cycle data is never sent to Soso’s servers.
My Calendar:App Store label: identifiers and usage data may be used to track you, and health data is linked to your identity.
Account and backup
Soso:No account to create. Optional backup and sync between her devices through your own iCloud or Google Drive, never through Soso’s servers.
My Calendar:What she logs stays on the phone by default. Optional cloud backup needs an email and a password, and is stored on Google Cloud.
Ads inside the app
Soso:No ads.
My Calendar:Contains ads; paid plans remove them.
Intimacy, fertility and pregnancy
Soso:None. No intimacy log, no fertility window, no pregnancy mode.
My Calendar:Intimacy, fertility, ovulation, and modes for pregnancy and perimenopause. Simple Mode can hide the fertility data.
Cycle tracking
Soso:Period, flow, spotting, discharge, mood and symptoms, in a calendar made for the first cycles.
My Calendar:More than 100 symptoms, moods and activities, with themes and customisation.
Learning
Soso:Puberty and first periods explained for her age, with a quiz a day. The sources behind our health information are public on our Medical Sources page.
My Calendar:A broad tracker with a Simple Mode, not a learning product for a first period.

What matters for her

Simple Mode versus a simple app

My Calendar can hide its fertility data, but the fertility, pregnancy and perimenopause modes are still the app underneath. Soso does not ask a parent to configure an adult tracker before it is right for a first period.

Rated 13+, with ads

My Calendar is rated 13+ on the App Store, contains ads and lists identifiers and usage data that may be used to track you. Soso is rated 9+, has no ads and declares no tracking.

Soso starts before the first period

My Calendar’s predictions come from periods already logged. Soso gives a girl who has not had her first period an estimate of when it may arrive, then narrows the window as she follows the signs of puberty: illustrated stages for breast and pubic hair development, and her height each month.

Where My Calendar is better

Themes, 100+ categories, password lock, partner mode and modes for every adult stage make My Calendar more flexible for someone who wants one app for life.

Frequently asked questions

Is My Calendar suitable for teens?

Its App Store listing offers a Simple Mode that hides ovulation and fertility data and calls it ideal for teens. The app underneath still has fertility, pregnancy and perimenopause modes, and it is rated 13+. Soso was built for a first period from the start.

What age is My Calendar rated?

13+ on the App Store. Soso is rated 9+.

Does My Calendar have ads?

Yes. Its App Store listing says it contains advertising, and its paid plans remove the ads. Soso has no ads.

Does My Calendar track you?

Its App Store privacy label lists identifiers and usage data that may be used to track you across other companies’ apps, and health data linked to your identity. Soso declares no tracking.

Does My Calendar work before the first period?

My Calendar is built to track periods once they start. Soso gives a girl who has not had her first period an estimate of when it may arrive, and narrows it as she logs the signs of puberty.

Does Soso need an account?

No. There is no Soso account. Her cycle data is stored on her phone and never sent to our servers. If you turn on backup, it goes to your own iCloud or Google Drive.

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 privacy policy

    There is no Soso account, and cycle data is stored on the device and never sent to Soso’s servers. Backup is optional and goes to the user’s own iCloud or Google Drive.

    Accessed Oct 8, 2026

  • Soso on the App Store

    Rated 9+, with no advertising. The privacy label declares no data used to track you and no data linked to you. Describes the first-period estimate and the First Period Prediction Pack.

    Accessed Oct 8, 2026

  • Soso Medical Sources

    The age a first period usually arrives (NHS, Cleveland Clinic, StatPearls) and how many girls have started by each age (a US national survey).

    Accessed Oct 8, 2026

  • My Calendar privacy policy

    Lists intimacy among the data users enter. What users enter is stored on the device by default; optional cloud backup needs an email and a password and goes to Google Cloud.

    Accessed Oct 8, 2026

  • My Calendar on the App Store (“Period Tracker and Calendar” in the US)

    Simple Mode hides ovulation and fertility data and is described as ideal for teens. Rated 13+, contains advertising, and the privacy label lists identifiers and usage data that may be used to track you.

    Accessed Oct 8, 2026