For fast logging, Plum is the pick. You log your period and symptoms in a tap or two, it tracks 27 things, and it has no ads. Bearable is the pick if you want to find what makes symptoms worse across your whole health, from sleep and food to the weather. Clue and Flo have the longest symptom lists and the biggest content libraries. And if you want nothing new on your phone, Apple’s Cycle Tracking is already in the Health app.
How we chose
We make Plum, so weigh our section on it accordingly. There are no affiliate links here. We read each company’s own site and App Store listing on October 12, 2026, and every claim about another app comes from one of those pages. Where a source didn’t say, the table says “not stated”. We asked four things of each app. How quickly can you log a day? How much can you track? Does it show you patterns? And does its App Store label list anything under Data Used to Track You? We left out prices, because they change by country and month.
Plum, for logging symptoms in a tap or two
Plum is an iPhone app built so that logging a day takes a tap or two. You can track 27 things in four groups. Physical covers flow, spotting, pain such as cramps, headache and back pain, discharge, digestion, skin and sleep. Feelings covers mood, energy, PMS and cravings. Leisure takes in sex and exercise, and Medication holds birth control pills and ovulation and pregnancy tests. You pick which ones show up, so the screen only holds what you care about. Period and flow are always on.
Logging, the calendar and predictions for your next period, fertile window and ovulation come with the app at no cost. So do reminders and birth control tracking. Plum Premium, a monthly or yearly subscription, adds insights that connect your cycle phases with how you’ve felt. It also unlocks the full set of more than 50 phase tips, which are picked from your phase and what you log. Without Premium you get one full tip a day.
There’s no free-text notes box, so if you want to write about a day in your own words, another app suits you better. Plum is on iPhone only and doesn’t sync with Apple Health. It has no ads and never asks to track you. Our symptom logging guide shows the full list.
Bearable, for finding what makes symptoms worse
Bearable is a general health tracker, not a period app, and that’s its strength. Its App Store listing says it shows correlations between your symptoms and your sleep, food, weather, stress, medication and habits. It also says you can see how symptoms, pain, migraine and mood change across each phase of your cycle. It syncs steps, sleep and heart rate from Apple Health and Fitbit, and you can export your data. It’s on iPhone and Android. If you live with a long-term condition and the period is one piece of it, start here.
Clue, for the longest symptom list
Clue is a Berlin company, and its App Store listing says it tracks over 200 symptoms and experiences. Those include cramps, PMS, pain, energy, cravings, mood, skin, sleep, sex drive and discharge, shown back to you in charts. It has more than 400 articles and modes for trying to conceive, pregnancy and perimenopause. It can also pull in temperature, sleep and heart rate from wearables like Apple Watch and Oura. Clue Plus adds deeper analysis. It’s on iPhone and Android.
Flo, for symptoms with a health library
Flo says on its App Store listing that it has over 70 trackable symptoms and moods. It also has cycle reports you can download and share with your doctor. Flo Premium adds daily tailored insights, expert videos and a Symptom Checker for conditions like endometriosis and fibroids. If you want lots of reading alongside your log, it has the most. It’s on iPhone and Android, and it offers an Anonymous Mode.
Apple Cycle Tracking, for the basics built in
Every iPhone has Cycle Tracking in the Health app. Apple’s support page says you can log period days, flow, symptoms, spotting, basal body temperature and more, and you choose which categories appear on the logging screen. Its predictions page says you can export your cycle history as a PDF, which is handy for a doctor’s visit. There are no phase insights or tips, but for a plain symptom log it costs nothing extra.
Side by side
| What you can track | Patterns | Platforms | Data Used to Track You | |
|---|---|---|---|---|
| Plum | 27 things in four groups, you pick which show | Phases and feelings, with Premium | iPhone | None listed |
| Bearable | Symptoms, mood, sleep, food, medication and more | Correlations across your health | iPhone, Android | Contact Info, Identifiers |
| Clue | Over 200 symptoms and experiences | Charts, deeper analysis with Clue Plus | iPhone, Android | Identifiers |
| Flo | Over 70 symptoms and moods | Insights, more with Flo Premium | iPhone, Android | Purchases, Location, Identifiers, Usage Data |
| Apple Cycle Tracking | Period, flow, symptoms, spotting, temperature and more | Cycle history and PDF export | iPhone, Apple Watch | Not applicable, built in |
How to keep a symptom log you’ll stick with
Pick three to five things to track and turn the rest off. Log them on the day, because memory blurs within a week. Give it three cycles before you look for patterns, since one cycle can’t tell a pattern from a bad month. If pain stops your day, a period runs past seven days, or you need a new pad every hour or two, take the log to a doctor. Those last two are the signs ACOG names for a doctor’s visit. Our period diary guide covers what to write down.
