Best Symptom Tracker Apps for Chronic Conditions
The best symptom tracker apps depend on how much you track. Compare five real tools, including a private offline one that keeps every symptom on your device.
For tracking a broad mix of symptoms and hunting down what sets them off, the best symptom tracker app for most people is Bearable, whose free tier lets you log almost anything and still see weekly patterns. If you want a private record you own outright and that never leaves your device, SymptomOS ($23 one-time, no subscription) is an offline planner built for the diagnostic phase, when your symptoms are still a mystery and you are trying to find the pattern. And if your main problem is the crushing fatigue of ME/CFS or long COVID, Visible is the specialist, because it is built around pacing your energy rather than just writing symptoms down.
| Tool | Best for | Price | Subscription | Works offline |
|---|---|---|---|---|
| SymptomOS | A private, offline record of any symptom | $23 one-time | No | Yes |
| Bearable | Tracking almost any symptom | Free tier plus paid | Optional | No |
| Guava | Symptoms plus medical records | Free tier plus paid | Optional | No |
| Visible | ME/CFS and long COVID pacing | Free tier plus membership | For full features | No |
| Symple | A simple symptom diary | Free tier, one-time unlock | No | Yes |
1. SymptomOS - best for a private, offline record of any symptom
SymptomOS is a general symptom tracker: it works for any symptom you can name, not one body part or one condition. You build your own symptom list, so it fits headaches, gut trouble, fatigue, dizziness, skin issues, mood, or the tangle of unrelated symptoms that shows up before anyone has settled on a diagnosis. That diagnostic phase, when you are trying to prove to yourself and a doctor that something real is happening, is exactly what it is built for.
Here is what it actually does, tab by tab:
- Today is where you log. You add a symptom from your own list with a time of day, a severity from 0 to 10 and a short note, then do a quick daily check-in for how you feel overall (0 to 10), your energy and your hours of sleep. A snapshot at the top shows what you have logged so far today.
- Symptoms is a customizable library you own. You add, rename and remove symptoms freely, starting from a generic set like Headache, Fatigue, Nausea, Pain, Dizziness and Rash. Each symptom carries its own 30-day frequency, average severity and a mini trend so you can see which ones are actually driving your bad days.
- Triggers works the same way for the things that might set symptoms off. You keep an editable trigger library, log triggers by date, and the app builds a correlation table that compares your average symptoms on trigger days against every other day, so you stop guessing at connections.
- Patterns turns the raw log into a picture: a symptoms-per-day chart, an average-severity trend, a best-versus-hardest-days view, and a plain-language “possible pattern” readout, for example flagging that you tend to have more symptom-days after nights of low sleep.
- Doctor Visit builds the summary you take into the room. Pick a window of 7, 14, 30 or 90 days and it produces your top symptoms, what seemed to help or hurt, and an editable questions-to-ask checklist. You can copy the summary or print it.
- Settings holds your name, a JSON export and import for backing up or moving your data, and the disclaimer.
Everything is saved on your own device. There is no account, no login and no server, so Ecuato never receives your symptom scores, your notes or your triggers, because there is nothing on our end to receive them. That matters more than usual for health data. After the first load it works fully offline, on a laptop or on your phone via add-to-home-screen.
The honest trade-offs: there is no automatic import from a wearable, no cloud sync between your devices, no reminders or notifications and no AI. The export is a raw JSON backup you own, not a polished doctor-ready PDF report the way Guava produces. It is a personal planner for finding and recording a pattern, not a medical device or a substitute for your doctor. If you need any of those missing pieces, one of the tools below will fit better. Otherwise, pay $23 once, download it, and it is yours.
2. Bearable - the most flexible everyday tracker
Bearable is the default recommendation for general symptom tracking, and deservedly so. You can log mood, energy, sleep, pain and symptoms, then build your own custom trackers for anything the app did not think of. Its real strength is correlation: over time it helps you connect a symptom to the factors around it, such as a food, a medication, poor sleep or the weather, so you stop guessing at your triggers.
The free tier is generous. You get unlimited custom trackers, daily logging and weekly reports, with roughly the last month of history visible. The optional subscription, in the region of a few dollars a month or around thirty-five dollars a year and frequently discounted, unlocks correlation reports, custom experiments and your full long-range history. It syncs with Apple Health and Fitbit and can send reminders.
Skip it if: your data privacy is a hard line. Bearable is cloud-based, which is what makes the syncing and insights work, but it also means your health record lives on a company’s servers rather than only on your device.
3. Guava - symptoms plus your medical records in one place
Guava is less a symptom diary and more a personal health record that happens to track symptoms well. You can log unlimited symptoms, attach photos, and see how they relate to metrics like sleep, activity and heart rate. Its standout feature is the ability to pull your symptoms, medications and conditions into a custom summary you can hand to a provider before an appointment, along with the questions you want to ask.
It is a strong pick if you juggle several specialists and want one place that holds records, labs and day-to-day symptoms together. There is a free tier, with advanced features on a paid plan.
Skip it if: you want something simple. Guava does a lot, and if all you need is a quick daily “how did I feel” log, it can feel like more machinery than the job requires.
4. Visible - the specialist for ME/CFS and long COVID
Visible is not a general tracker and does not pretend to be. It is built for people with energy-limiting conditions such as ME/CFS, long COVID, POTS and fibromyalgia, where the goal is not to push harder but to pace and avoid crashes. Each morning you take a short heart-rate reading, and the app uses that to gauge your stability and help you plan how much you can safely do that day. You log symptoms and exertion to spot the pattern behind post-exertional crashes.
There is a free tier, and a paid membership billed yearly unlocks the fuller experience. An optional heart-rate armband, made by Polar, adds continuous tracking and real-time pacing alerts.
Skip it if: fatigue and pacing are not your central problem. For gut issues, headaches or mood, the pacing model will not fit, and one of the other tools here will serve you better.
5. Symple - the simple one-time diary
Symple is the quiet, old-school option: a straightforward symptom journal and health diary where you rate how you feel, note symptoms and habits, and view your history in simple charts. It runs on the device, can import data from Apple Health, and, like our pick, it is a one-time purchase rather than a subscription. The free version is limited to a handful of items, and a small one-time payment unlocks unlimited tracking.
The honest caveat is that Symple has not been meaningfully updated in years. It still works and remains available, but it is not actively developed, so do not expect new features or modern integrations.
Skip it if: you want an app that is being actively improved, or you need the correlation depth of Bearable or the records handling of Guava.
How to choose
- Pick SymptomOS if you want to track any symptom, own a private record outright for $23, and would rather your health data never leave your device.
- Pick Bearable if you want to track a wide range of symptoms, find your triggers, and start with a free tier that is actually useful.
- Pick Guava if you want your symptoms living alongside your medical records and a clean summary to bring to appointments.
- Pick Visible if fatigue, crashes and pacing are the core of what you are managing.
- Pick Symple if you want the simplest possible diary and prefer a one-time unlock, and you do not mind that it is no longer actively developed.
What to bring to your appointment
Whichever tool you choose, the point of tracking is the conversation it makes possible. Most people walk into a fifteen-minute appointment and try to summarize months of symptoms from memory, which rarely goes well.
- Bring a trend, not a diary dump. Your doctor does not need all ninety days of entries. They need the shape: is a symptom getting more frequent, is it getting more severe, did a new symptom start on a specific date.
- Log the ordinary days too. A tracker full of only bad days overstates the problem. The contrast between good and bad days is where the pattern actually lives.
- Note what changed before a flare. A new food, a missed medication, a bad night, a stressful week. Triggers are only visible next to the days that were fine.
- Write your top three questions down. The record helps you remember what you meant to ask when the room gets busy.
If you would rather own your tracker than rent it, browse all Ecuato planners, and if you also manage medications, see our honest guide to the best medication reminder apps.
Frequently asked questions
What is the best symptom tracker app?
For tracking a wide mix of symptoms and finding what triggers them, Bearable is the most flexible pick, and its free tier is genuinely usable. If you want a private record you own outright and that never leaves your device, SymptomOS is a $23 offline planner built for the diagnostic phase and mystery symptoms. For the disabling fatigue of ME/CFS or long COVID, Visible is the specialist because it is built around pacing rather than plain logging.
Is there a symptom tracker with no subscription?
Yes. SymptomOS is a $23 one-time purchase with no account and no renewal. Symple sells a one-time unlock for a few dollars after a limited free tier. Bearable and Guava both have free tiers you can use indefinitely, though their deeper reports and unlimited history sit behind an optional subscription.
Can a symptom tracker help me get a diagnosis?
Not on its own. What it can do is turn months of scattered memory into a clear record of when symptoms happen, how severe they are, and what came before them. That pattern is what a doctor actually needs, and walking in with it usually makes the appointment more productive than trying to recall everything from memory.
Are symptom tracker apps private?
It depends on the app. Cloud-based trackers like Bearable, Guava and Visible store your data on their servers so it can sync and generate insights, which means you are trusting a company with sensitive health details. SymptomOS is the opposite by design: it is a single file that saves everything on your own device, with no server to send it to, so nothing you type ever leaves your hands.
Does SymptomOS track any symptom, or only certain ones?
Any symptom. You build your own list, so you can add, rename or remove entries to match whatever you are dealing with, whether that is headaches, gut issues, fatigue, mood, a rash or something no one has named yet. It ships with a generic starter set like Headache, Fatigue, Nausea, Pain, Dizziness and Rash, and you reshape it from there. That makes it a good fit for unexplained or overlapping symptoms during the diagnostic phase.
Does SymptomOS work offline and on my phone?
Yes. It runs on a laptop and on iPhone and Android, where you can add it to the home screen so it opens like an app, and after the first load it works fully offline. Because the data lives on the device, each device keeps its own record and there is no cloud sync between them.
Medical disclaimer: This guide is for general information and education only. It is not medical advice, diagnosis or treatment, and it is not written by a clinician. A planner is a place to keep your own notes, including notes you may want to show your doctor. Always talk to your doctor or midwife about your health and any decisions.
Ecuato builds interactive dashboard planners as single offline HTML apps. About Ecuato and how these guides are written, or browse all planners.