Shows the app’s backup status
Saved to iCloud, only on this phone, or iCloud full. The app says which, and when it last synced.
- Saved to iCloud2 min ago
- Partner sharingOn
- Apple HealthConnected
Coming to the App Store for iPhone
A cycle tracking app for her and her partner
Log how you feel and get today’s food and skin tips, each with its reason. Tracking is free, and Plus is $29.99 a year for you both.
9:41
Sunday, October 18
Good morning, Sarah
Luteal phase
Period expected Oct 26–30
Likely · 4 cycles logged
Today’s check-in
Logged 8:12 AMTiredBloatedCalmNo flow
Your tips for today
Nourish
Easy on salt this week
Too much salt makes the body hold on to water, which can show up as bloating.
His Today6:00 AM
Handle dinner and give her some space.
The cycle calendar and your day in the app
The calendar marks your period, your fertile days and the expected range for the next one. Tap a day to see what you logged and the tips it gave you. See what Plus adds
October 2026
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PeriodFertileOvulationExpected range
Not a method of birth control
Sun, Oct 18
Day 18 · LutealTiredBloatedBreakoutsCalmNo flow
Nourish
Peppermint or chamomile tea after meals
Both are long-used European remedies for bloating. A warm cup after dinner is a gentle thing to try.
Traditional useSkin tonight
Hands off that breakout
Wash with warm water and a mild cleanser, no scrubbing. Picking a spot can leave a mark.
Solid evidenceNext period expected Oct 26–30, in about 8 days. Likely: 4 cycles logged, about 28 days each.
28 daysAverage cycle
5 daysAverage period
Oct 26–30Expected range
Shared with your partner
Phase, forecast and how you feel
How By Design works, in three steps
-
1. Check in with how you feel
Mood, energy and a short list of symptoms on one sheet. Starting your period is one tap on Today.
8:12Sunday, October 18
Today’s check-in
Mood
HappyCalmIrritableLowEnergy
LowSteadyHighSymptoms
CrampsBloatedBreakoutsHeadacheCravingsSave check-inFlow
NoneSpottingLightMedium -
2. Get today’s tips and the reason
Two or three food and skin tips picked from what you logged, each with its sources and how strong the evidence is.
8:13Your tips for today
Because you logged cramps · day 2, period
Nourish
Warmth and ginger for cramps
A heating pad on your lower belly is a good first thing to try. In small studies, ginger in the first days of a period eased the pain.
Some evidence · 2 sourcesSkin tonight
Go gentle on your skin
Wash with warm water and a mild cleanser, then moisturize while skin is still damp.
If cramps are severe or getting worse, talk to your provider.
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3. Share what you choose with your partner
He gets your forecast as a range and a few ways to help that day. You pick what he sees.
6:02Sarah’s day
What she shared
Day 18She’s feeling tired today
Her period could start Oct 26–30.
Handle dinner and give her some space.Take the evening chores off her plate without being asked.Ask once, gently, then do something instead of asking again.
Partner sharing you control
Your partner sees the expected range of your next period, how you feel when you share it, and small ideas for that day.
- Intimacy logs never leave your phone.
- A rough-day alert reaches him only if you turn it on.
- Stop sharing in Us and his access ends.
By Design 6:00 PM
Her period could start Oct 26–30. Check the heat pack and her usual supplies are stocked.
Your records stay in your iCloud. By Design runs no server of its own.
Exports the app’s data as a ZIP
Every log and setting in one file you can keep or take to another app.
- ZIPby-design-export.zip212 KB
- CSVcycles.csv14 rows
- CSVcheck-ins.csv311 rows
- JSONsettings.json4 KB
Makes a Doctor summary PDF
One page of recent cycles and top symptoms to hand to your provider. Intimacy is never in it.
Doctor summary
| Cycle start | Length | Period |
|---|---|---|
| Oct 1 | 28 days | 5 days |
| Sep 3 | 29 days | 5 days |
| Aug 5 | 27 days | 6 days |
| Jul 8 | 28 days | 5 days |
Made for every season of your life
We believe you were made on purpose, and so is each season you live through. Today carries one verse, Psalm 139:14, and that’s as far as the preaching goes.
The first release covers the years you have periods, irregular cycles and breastfeeding included. Menopause, pregnancy and postpartum come later.
Pricing. Tracking is free and stays free.
Free
For tracking your cycle
$0
- Period, flow and check-in logging
- Your next period as a range, with its confidence
- Today’s tips with the reason
- Doctor summary PDF and full export
- Your whole history, never capped
Plus
For her and her linked partner
$29.99a year, or $4.99 a month
- A 7-day free trial on the yearly plan
- Findings from your own logs across cycles
- A recap each time a cycle ends
- His full view, with ideas for each day
- One plan covers both of you
Reminds you before the app charges
Two days before a trial ends and seven before a yearly renewal, with the price and how to cancel.
- Plus, yearly$29.99
- Trial endsNov 2
- Remind me 2 days beforeOn