Log a drink in one tap. See your daily count and standard-drinks total. Spot your patterns over time. No account, no sign-in, no tracking. Your data lives on your device.
KnowLimit keeps a simple, accurate record of what you log. No accounts. No predictions. Just your own data, available across your Apple devices.
Tap once to log a beer, glass of wine, shot, or mixed drink. Pick a preset or set your own volume and ABV.
See how many drinks you've logged tonight and your standard-drinks total using the NIAAA definition: one standard drink equals 14 grams of pure alcohol.
Look back at the week, the month, or the year. Notice the days, the weeks, and the seasons in your own data.
"Log Drink." "How Many Tonight." "Log Water." "When Did I Last Log A Drink." Hands-free, no typing.
A full companion app on your wrist. Log a drink or check your count without reaching for your phone.
See tonight's count on your Lock Screen and Dynamic Island. Update it in a single tap.
Pin your count to the Home Screen in small, medium, and large sizes. Glance, don't open.
If you choose, KnowLimit writes your standard-drinks count and water to Apple Health using the Apple-sanctioned data types. You stay in control.
One-tap deep links to Uber, Lyft, and an optional emergency contact you can call from inside the app.
KnowLimit does one thing well: it logs what you drink and shows you your patterns.
numberOfAlcoholicBeverages data type, if you opt inNo setup wizard, no profile required.
Tap the plus button or say a Siri shortcut. Pick a preset like beer, wine, or shot. Done.
Tonight's count and your standard-drinks total appear on the Today view, the Live Activity, the widget, and your watch.
Open History and Patterns. Look back over weeks and months. Decide what you want to do with what you see.
Built for the Apple ecosystem from the ground up.
Last updated: May 19, 2026
KnowLimit ("the App"), published by Onyx Security Services Inc., is built around a simple promise: your drink log belongs to you. This policy explains exactly what the App does and does not do with your data.
No account. No sign-in. No third-party SDKs. No analytics. No advertising. No tracking. Your data is stored on your device. We do not run servers that hold your information.
KnowLimit uses Apple's on-device SwiftData store. The following data is kept locally and does not leave your device unless you choose to share it:
KnowLimit integrates with Apple Health only with your explicit permission. You can grant or revoke access at any time in the Health app under Sources, or in iOS Settings under Privacy.
If you grant permission, the App may:
dietaryWater), so your water entries can be reflected in the App.numberOfAlcoholicBeverages data type.dietaryWater.All Apple Health data is handled in accordance with Apple's HealthKit guidelines. It is never used for advertising and is never transmitted to us or to any third party.
The App can open the following on your device. When you tap them, the destination app handles the request under its own privacy policy. No data from KnowLimit is transmitted in the URL:
tel:): Opens your device's phone app to call the emergency contact you saved.KnowLimit is intended for adults of legal drinking age in their jurisdiction. The App is rated 17+. We do not knowingly collect any information from anyone under that age.
You own your data. To remove it:
KnowLimit is a private journal and is not a medical device or a substitute for professional advice. If you are concerned about your drinking, please consult a qualified healthcare provider.
If we change this policy, the revised version will appear on this page with a new "Last updated" date. Material changes will be summarized at the top of the page.
Onyx Security Services Inc.
15431 Sableton Crest Ln
Cypress, TX 77429
Email: support@knowlimit.app
Short walkthroughs for the things people ask about most.
On the Today view, tap the plus button in the tab bar. Choose a preset (beer, wine, shot, mixed) or tap Custom to set your own volume and ABV. Your daily count and standard-drinks total update right away.
Open the Profile tab. Tap "Emergency contact" and enter a name and phone number, or pick from your contacts when prompted. The contact lives on your device and is used only when you tap to call them from inside the App.
The App ships with four shortcuts: Log Drink, How Many Tonight, Log Water, and When Did I Last Log A Drink. Open the Shortcuts app, find KnowLimit under Apps, and add the shortcuts you want. You can rename any phrase to match how you speak.
The first time you tap a Health-related option, iOS will ask which categories to allow. KnowLimit asks to read hydration and to write standard drinks and water. You can change these later in the Health app under Sources, or in iOS Settings under Privacy and Security.
Open the Profile tab and use "Clear history" to remove drink entries, and "Remove emergency contact" to clear that field. To remove entries the App has written to Apple Health, open the Health app, tap Sources, choose KnowLimit, and delete from there. Deleting the App removes everything stored locally.
Long-press the Home Screen, tap the plus, search "KnowLimit," and pick small, medium, or large. The Live Activity appears automatically on the Lock Screen and Dynamic Island after you log a drink.
KnowLimit uses the NIAAA standard: one standard drink contains roughly 14 grams of pure alcohol. That is about 12 oz of regular beer at 5% ABV, 5 oz of wine at 12% ABV, or 1.5 oz of distilled spirits at 40% ABV. The App computes standard drinks from the volume and ABV of each entry you log.
No. There is nothing to sign up for. There is no cloud account behind the App. Your data lives in an on-device SwiftData store and never leaves your phone unless you choose to share it via Apple Health or by exporting it manually.
Yes. KnowLimit ships with a full Apple Watch companion app. You can log a drink, log water, or check tonight's count from your wrist.
No. The App contains no third-party SDKs, no analytics, no advertising, and no tracking. The only data that ever leaves your device is data you choose to write to Apple Health, which Apple manages under your control.
The App opens the relevant app on your device using a standard deep link. The destination app then handles your request under its own privacy policy. KnowLimit does not pass any information about your drink log through these links.
KnowLimit is a single, clean app. Pricing is shown on the App Store listing. There is no advertising inside the App.
Stuck, confused, or have a feature idea? Write to us and we will reply.
Found something that does not work? Send the steps to reproduce and we will get it fixed.