Track anything
Any measurement you can put a number on — with your own units, precision and even several fields in one entry, like systolic, diastolic and pulse together.
Private personal tracker · on-device
Track anything.
Track anything.
Every number you keep, in one calm place.
Sundry is a private, on-device measurement tracker for anything you can put a number on — weight, blood pressure, sleep, mood, water, or a metric you invent. Log any number over time and see the chart, the trend and the stats right away. Works offline, no account.
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Track for example
Weight
Blood pressure
Sleep
Mood
Water
Blood sugar
Heart rate
Steps
+ anything
What Sundry does
The speed of a notes app, the tidiness of a spreadsheet.
A calm spreadsheet alternative for tracking any number — a health metrics tracker, a habit tracker, or anything you invent. Every tracker gets a chart, a trend and stats with nothing to configure. Start with a ready-made template, or build exactly the tracker you need.
Charts & trends
Clean line and bar charts from a week to all-time, a moving-average trend line, and stats worked out for you: average, min, max, latest, change and streaks.
Reminders & habit tracking
Gentle nudges to log — set a daily, weekday or custom schedule for any tracker, so Sundry doubles as a quiet habit tracker. Local notifications that fire reliably and survive a restart.
Private, offline tracker
A private tracker with no account: your entries live on your device and nowhere else. No sign-up, no analytics, works offline — nothing is uploaded to us, ever. Lock the app with a PIN or Face ID.
Export & encrypted backup
Your data is yours to keep. Export and import as CSV or JSON, or make an encrypted backup to your own iCloud or Google Drive — on your command, never automatically.
Custom trackers
Build your own — name it, pick an icon and colour, and add the exact fields you want: numbers, durations, yes/no, 1–5 ratings and notes. Pin, categorise, search, archive.
Private by design
Nothing leaves your device unless you send it.
Sundry is built to collect nothing. There is no sign-up and no account, no ads and no trackers. On the App Store privacy label, that is simply “Data Not Collected.” Your numbers are yours.
Read the privacy policyLocal-only storage
Every entry is saved in a private database on your phone. We never see it and cannot access it.
No accounts, no tracking
No email, no password, no analytics SDK. Your data is never sold, never used for ads, never shared.
Uploads only on your action
Export and encrypted backup happen only when you choose them — nothing lands on our servers, ever.
A look inside
Calm, modern and quiet — your latest number is always the hero.
Thin, clutter-free charts. Colour used as data, not decoration. Full dark and light, both designed as first-class themes.
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Questions & answers
Everything you might ask before you start tracking.
What Sundry can track, how private your data is, and how it works offline — the short version.
What can I track with Sundry?
Anything you can put a number on. Sundry ships with ready-made templates for common metrics — weight, blood pressure, sleep, mood, water intake, blood sugar, heart rate and steps — and lets you build your own custom tracker for anything else. Each entry can hold several fields at once, like systolic, diastolic and pulse together.
Is my data private and does it stay on my device?
Yes. Every entry is saved in a private database on your phone and nowhere else. There is no sign-up and no account, no ads and no analytics — nothing is uploaded to us. On the App Store privacy label that is simply “Data Not Collected.” You can also lock the app with a PIN or Face ID.
Can I track blood pressure, weight, mood or water intake?
Yes. Sundry works as a blood pressure tracker, weight tracker, mood tracker, water intake tracker, sleep tracker and more — each from a ready-made template with sensible units. Blood pressure records systolic, diastolic and pulse in one entry, and every tracker gets a chart, trend and stats automatically.
Can I create a custom tracker?
Yes. Build your own tracker: name it, pick an icon and colour, and add the exact fields you want — numbers, durations, yes/no, 1–5 ratings and notes — with your own units and precision. Trackers can be pinned, categorised, searched and archived.
Does Sundry work offline and without an account?
Yes. Sundry is an offline, on-device tracker. There is no account to create and no connection required — you can log, chart and review everything with no network at all.
Can I export or back up my data?
Yes. Your data is yours to keep. Export and import as CSV or JSON, or make an encrypted backup to your own iCloud or Google Drive. Export and backup only ever happen when you choose them — nothing is uploaded automatically.
Is Sundry free?
Yes. Sundry is completely free — no subscriptions, no ads and no in-app purchases.
Is Sundry available on iPhone and Android?
Sundry is built for both iPhone and Android, and is available in multiple languages. The App Store and Google Play releases are coming soon.
Start keeping your numbers calmly.
Sundry is completely free — no subscriptions, no ads, no in-app purchases. iPhone and Android, available in multiple languages.
Sundry is a personal tracking tool to help you record and understand your own numbers. It is not a medical device and does not provide medical advice, diagnosis or treatment. Always talk to a qualified professional about health decisions.