Chasing Salt

Make sense of your dysautonomia.

Chasing Salt helps people living with POTS and other forms of dysautonomia log symptoms in seconds, see barometric pressure swings coming, and turn months of entries into a report their doctor can actually use.

Coming soon on theApp Store

Free for your first month, then $19.99 a year.
For iPhone, iOS 26 or later.

The Chasing Salt mascot, a glass salt shaker with a tired face
Chasing Saltnow

Pressure drop alert. Barometric pressure expected to drop by 5 hPa in the next 3 hours.

Built around the days you're actually living.

Most trackers are made for step counts and sleep scores. Chasing Salt is made for standing up too fast, skipped meals, hot showers and the doctor who wants to see the pattern.

Logging a symptom with severity, posture and triggers

Log an episode before it fades.

Pick the symptoms you care about, then record each episode with as much or as little detail as you have energy for. Weather is attached automatically.

  • Severity, duration and how much it stopped you
  • Your posture and how long since you changed it
  • Triggers like heat, dehydration, meals, poor sleep or a missed dose
  • Heart rate and blood pressure, if you took them
  • What helped: fluids, salt, compression, lying down, elevating your legs
The Barometric Pressure insight comparing pressure changes with symptoms

Know when the pressure is about to drop.

Chasing Salt checks the forecast for your location every few hours and sends a heads-up when a big pressure change is on the way, so you have time to hydrate, salt up and plan a lighter day.

  • Pressure, temperature and humidity in real time
  • Alerts for drops and rises, even when the app is closed
  • Once you've logged ten severe episodes with pressure data, alerts tune themselves to your own sensitivity
Describing a goal in plain words and Apple Intelligence turning it into a daily 120 oz water goal

Set goals in your own words.

Type a goal the way you'd say it and Apple Intelligence sets up the target, unit and schedule for you. Track daily, weekly or monthly goals and build streaks that celebrate consistency, not perfection.

Drink 120 ounces of water per day Exercise 3 times per week Read for 30 minutes every night
The Today dashboard with a pressure drop warning, goals, symptoms and streaks

See your whole day at a glance.

The Today screen brings your symptoms, goal progress, active streaks and current conditions together, with quick actions to log whatever just happened.

Patterns you can bring to your next appointment.

Your entries, combined with Apple Health data you choose to share, become 18 focused reports. When it's time to see a provider, export a clinical summary as a PDF to share or print.

Your symptoms

Frequency & burden
Episode counts, burden scores and a calendar heatmap
Severity trends
Severity over time with moving averages
Time-based patterns
Time of day, day of week and seasonal patterns
Posture & position
Episodes by posture, with an orthostatic index
Trigger analysis
Ranked triggers and which ones show up together
Duration & impact
How long episodes last and how much they disrupt your day
Relief measures
What you reach for most and what actually works
Vitals at symptom
Heart rate and blood pressure during episodes

Apple Health correlations

Autonomic markers
HRV, resting heart rate and heart rate recovery against symptoms
Cardiac events
Irregular rhythm notifications and falls near episodes
Exertion patterns
Activity, VO₂ max and post-exertional symptoms
Mobility & fall risk
Walking steadiness, speed and fall correlation
Respiratory & O₂
Respiratory rate and blood oxygen during episodes
Thermoregulation
Wrist temperature trends against heat sensitivity

Environment & summaries

Barometric pressure
Pressure changes, rate of change and lag analysis
Location analysis
Symptom burden by city and while traveling
Your top patterns
Statistically significant correlations unique to you
Clinical summary
A PDF report for your healthcare provider

Made with the dysautonomia community in mind.

Start with the symptoms people with POTS report most, or create your own with any color and icon. Chasing Salt also includes plain-language guides to the autonomic nervous system, trauma-informed care and self-advocacy scripts for appointments that don't go the way they should.

  • Anxiety
  • Brain Fog
  • Chest Pain
  • Cold Extremities
  • Dizziness
  • Exercise Intolerance
  • Fatigue
  • Flushing
  • Headache
  • Nausea
  • Palpitations
  • Presyncope
  • Shortness of Breath
  • Tremor/Shaking
  • Vision Changes

Your health data stays on your iPhone.

There's no account to create and no server collecting your entries. Chasing Salt reads Apple Health data only with your permission and never shares it.

Read the privacy policy

  • Accounts or sign-inNone
  • Analytics or trackingNone
  • AdvertisingNone
  • Where your entries liveOn your device
  • Apple Health accessRead-only, your choice

Try every feature free for a month.

Chasing Salt Premium includes symptom tracking, goals, pressure alerts and every insight report.

$19.99 a year after your free month

Coming soon on theApp Store

Payment is charged to your Apple Account at the end of the free trial. Your subscription renews automatically each year unless you cancel at least 24 hours before the end of the current period. Manage or cancel any time in your Apple Account settings. Prices are in US dollars and may vary by country. See the Terms of Use.

Questions

Who is Chasing Salt for?

Anyone living with dysautonomia, including POTS, neurocardiogenic syncope and related conditions, as well as anyone who wants a detailed record of symptoms and what affects them. You don't need a diagnosis to use it.

Do I need an Apple Watch?

No. You can log everything yourself. If you wear an Apple Watch and allow access in Apple Health, Chasing Salt can line up heart rate, HRV, blood oxygen, activity and more with your episodes for richer insights.

Why does it ask for my location?

To get local barometric pressure, temperature and humidity from Apple Weather. Allowing “Always” lets the app check the forecast in the background so it can alert you before a pressure change, even when the app is closed.

Can I share my data with my doctor?

Yes. The Clinical Summary Export creates a PDF of your episodes and patterns for any time range, ready to share, email or print.

Does writing goals in my own words need Apple Intelligence?

Yes, that feature uses Apple Intelligence on supported iPhone models and runs on your device. You can always create goals manually on any iPhone.

Is Chasing Salt a medical device?

No. It's a tracking and journaling tool that helps you notice patterns and talk with your care team. It doesn't diagnose or treat any condition.

More answers on the support page.