A cute, private period tracker

Your cycle stays on your iPhone. No account, no ads.

Download on the App Store

For iPhone. Estimates only. Not for birth control.

Today
Sat, Nov 7
W
4
T
5
F
6
S
7
S
8
M
9
T
10
Luteal phase
Day 24 of an estimated 29-day cycle
Cozy days ahead. Be gentle with yourself.
You are here
PeriodFollicularFertile, est.Luteal
Next period, estimate
Nov 12 to 15
in 4 to 7 days
Period started
Flow
Spotting
Light
Medium
Heavy
Mood
Calm
Happy
Tired
Irritable
Anxious
Sad
Symptoms
Cramps
Bloating
Headache
Tender breasts
Acne
Cravings
Back pain
Add a note
BBT, optional
36.4 °C
Estimates only. Not for birth control.
9:41
Today
Calendar
Insights
Settings
Today
Sat, Nov 7
W
4
T
5
F
6
S
7
S
8
M
9
T
10
Luteal phase
Day 24 of an estimated 29-day cycle
Cozy days ahead. Be gentle with yourself.
You are here
PeriodFollicularFertile, est.Luteal
Next period, estimate
Nov 12 to 15
in 4 to 7 days
Period started
Flow
Spotting
Light
Medium
Heavy
Mood
Calm
Happy
Tired
Irritable
Anxious
Sad
Symptoms
Cramps
Bloating
Headache
Tender breasts
Acne
Cravings
Back pain
Add a note
BBT, optional
36.4 °C
Estimates only. Not for birth control.
9:41
Today
Calendar
Insights
Settings
Honest estimates

Your next period, as a range

Tidepup shows a range of days, never a single promise. Every prediction is labeled estimate, and the phase band shows where you are in your cycle.

Luteal phase
Day 24 of an estimated 29-day cycle
You are here
PeriodFollicularFertile, est.Luteal
Next period, estimate
Nov 12 to 15
in 4 to 7 days
Luteal phase
Day 24 of an estimated 29-day cycle
You are here
PeriodFollicularFertile, est.Luteal
Next period, estimate
Nov 12 to 15
in 4 to 7 days
Flow
Spotting
Light
Medium
Heavy
Mood
Calm
Happy
Tired
Irritable
Anxious
Sad
Symptoms
Cramps
Bloating
Headache
Tender breasts
Acne
Cravings
Back pain
Flow
Spotting
Light
Medium
Heavy
Mood
Calm
Happy
Tired
Irritable
Anxious
Sad
Symptoms
Cramps
Bloating
Headache
Tender breasts
Acne
Cravings
Back pain
Log in seconds

One hand, one tap, done

Flow, mood and symptoms are single taps. Add a note or a temperature when you want to. Most days take under 10 seconds.

Private by design

Stays on this iPhone

Nothing is sent anywhere. There is no account to create and no server that holds your cycle.

On this iPhone only
Face ID lock
Discreet widget
Export your own backup
No account
Widgets with Mo

Mo on your home screen

See the estimate at a glance. A discreet version shows only the days and a colored dot, with no wording.

4 to 7
days
until period, estimate
Luteal phase
4 to 7
days
Next period, estimate
Nov 12 to 15
4 to 7 days
S
7
S
8
M
9
T
10
W
11
T
12
F
13
4 to 7
days
until period, estimate
Luteal phase
4 to 7
days
Next period, estimate
Nov 12 to 15
4 to 7 days
S
7
S
8
M
9
T
10
W
11
T
12
F
13

Tidepup Pro, pay once

PDF summary
Cycle and symptom charts
BBT chart
Custom tags

One-time purchase. No subscription.

Get Tidepup

Download on the App Store