Fastara
A little more room for you

Your rhythm.
Not another rule.

A private journal for energy, rest and optional overnight-window tracking. Built with women in mind, without pretending your cycle is a prescription.

Redesigned iPhone app · In pre-release testing

Not currently available to download. No purchase is offered on this website.

Fastara app icon
Rest is not a broken streak.

No leaderboards. No hormone scores. No pressure to go longer.

Notice. Reflect. Choose.

Useful context.
Less noise.

Start with a journal, not a fasting plan. The timer is optional, and stopping early is never treated as failure.

A check-in that listens.

Log energy, mood, sleep, hunger, discomfort and stress. Skip any question. Add a note, a rest day or an optional period-start date.

Your data stays close.

Protected local storage. No health-data advertising or analytics SDK. Review sensitive information before exporting it.

Cycle-aware, not prescribed.

See days since your logged period start. No ovulation prediction, fertility claim or automatic phase-based fasting recommendation.

A modest, optional timer.

Eligible adults can choose an 8-, 10- or 12-hour overnight timer. These limits are not a medical endorsement. Multi-day fasting is not offered.

Safety before engagement

Not every body.
Not every day.

Fasting is not appropriate for everyone. Do not use the timer if you are under 18, pregnant or breastfeeding, have a current or past eating disorder, or have type 1 diabetes. Seek individual clinical advice for medicines affected by food, diabetes, other health conditions, being underweight or trying to conceive.

Journal-only mode stays available without fasting. Stop if you feel unwell. Fastara cannot assess your health, blood sugar or medical risk.

Read the Johns Hopkins fasting guidance. The 2022 review of human hormone trials does not validate a cycle-day algorithm for prescribing fasting hours.

Your journal is always yours

Pay for perspective.
Not permission to care for yourself.

The free foundation

$0

Private check-ins, your full journal, optional safety-gated timer, evidence library, reviewed data export and deletion.

No account required. No trial countdown.

Fastara Premium

$4.99 / month

Or $29.99 per year. Explore your ratings across 7, 30 and 90 days with charts, recorded-day averages and accessible observation tables.

Planned US launch pricing configured in App Store Connect, not a live offer. Final local price and renewal terms will appear in Apple's purchase flow. Subscription auto-renews until canceled. No weight-loss or health outcome is promised.

A few honest answers.

Does Fastara tell me when women should fast?

No. The redesigned app records your choices and observations. It does not prescribe fasting based on sex, hormones or an estimated cycle phase.

Can I use it without fasting?

Yes. Journal-only mode is the default. Your check-ins, rest days, optional cycle context and learning library work without a timer.

Is my journal backed up?

The redesigned app excludes its protected journal from device backup. You can review and export a copy you control. Deleting the app may permanently remove local entries.

Can I download it now?

Not yet. The replacement build is being tested before resubmission to Apple. A download link will appear only after availability is verified.