Health & Fitness · CycleBox

Useful cycle tracking that doesn't track you.

CycleBox is a private, local-first period and cycle journal — log flow, symptoms, mood and energy; see Today estimates, a 35-day calendar and trend charts, with private export. No accounts, no ads, no cloud.

Download on the App Store See the honest limits

iPhoneHealth & FitnessLocal-firstFree to download

Today — cycle

planning estimate

Day 16estimated

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Soft

Prediction

35-day

Calendar

Private

Export

A soft planning estimate from your own logs — not contraception, diagnosis, or a fertility guarantee.

Predictions are shown as soft ranges, not certainties — CycleBox won’t pretend an estimate is a medical fact.

The honest limits

What it does, and what it doesn’t

estimates for planning · not contraception

What it does

Logs flow, symptoms, mood, energy, notes and cycle settings
Shows Today estimates, a 35-day calendar and trend charts
Keeps everything in a local-first diary with private export
Works without accounts, ads or cloud pressure

What it doesn’t

Estimates are for planning and journaling only
Is not contraception or a fertility guarantee
Is not medical advice, diagnosis, or treatment

Not medical advice. Talk to your clinician.

How it works

Four things, done properly

A private diary

Log flow, symptoms, mood, energy and notes in a local-first journal that stays on your phone.

Today, at a glance

Today estimates, a 35-day calendar and trend charts drawn from your own history.

Yours to export

Private export options when you want a copy — on your terms, not a cloud’s.

Honest about limits

Estimates are for planning and journaling only — CycleBox states plainly it isn’t contraception or medical advice.

What it keeps

Your records, and where they live

Record	What it is	Where
Cycle log	Flow, symptoms, mood, energy, notes	Local-first diary
Estimates	Today view, 35-day calendar	On your iPhone
Export	Private export you initiate	Only when you choose

Kept privately

Kept privately, on your iPhone

Local-first: no accounts, no ads, no cloud
Private export options you control
Pro unlocks unlimited history review, advanced trend summaries and export

Pricing

Free to start, honest about Pro

Free app

Free to download

Flow, symptom, mood & energy logs
Today estimates & 35-day calendar
Trend charts

CycleBox Pro

Monthly or yearly

Unlimited history review
Advanced trend summaries
Private export

Billed by Apple; cancel anytime in Settings.

Questions

Straight answers

Is my cycle data in the cloud?

No. CycleBox is local-first with no accounts, no ads and no cloud. Export is private and initiated by you.

Can I use it as birth control?

No. Estimates are for planning and journaling only. CycleBox is not contraception, a fertility guarantee, or medical advice.

How accurate are predictions?

They’re soft ranges from your own history, not certainties — useful for planning, not for medical decisions.

CycleBox is on the App Store.

Download on the App Store All Hale Hearth apps

CycleBox estimates are for planning and journaling only. CycleBox is not medical advice, diagnosis, treatment, contraception, or a fertility guarantee.