BAC calculator - Alcocurve

BAC calculator - Alcocurve

Track drinks & blood alcohol

18 ratings
6 reviews
Free
In-App Purchases

Details

Released
April 23, 2025
Updated
November 1, 2026

Features

BAC calculator - Alcocurve screenshot #1 for iPhone
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BAC calculator - Alcocurve screenshot #7 for iPhone
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About

Estimate your blood alcohol content (BAC) over time with this intuitive tracker. Log your drinks, weight, and gender to visualize your BAC levels and predict when you'll be sober. Plan your night responsibly and stay in control.

✓BAC estimation based on weight, gender, and drinks
✓Clear, easy-to-read BAC level chart
✓Sober time prediction
✓Apple Watch integration
✓Drink history (Pro feature)
✓Alcohol calorie tracking (Pro feature)
Show original description
+1

What's New in BAC calculator

2.28.0

November 1, 2026

Thank you for all the great feedback! Several of you found archiving confusing, so it has been removed completely. Drinks now leave the chart by themselves once your BAC is back at zero and the last drink was more than 24 hours ago. Everything is still in History. Drinks that sit on top of each other on the chart now show a count, and tapping them lets you pick the one you want. This also works for other people’s drinks in a session. You can now zoom in to 3 hours in the ⋯ menu on the Home tab. + Other improvements based on user feedback Cheers :)

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Subscriptions & In-App Purchases

Alcocurve Pro (Monthly)

Monthly: full history and alcohol calories

$2.991 Month
How to cancel BAC calculator subscription ⁉️

User reviews

Very Useful

There is nothing else of this kind out there, and it does a good job by using the Watson and Widmark formulas. The developer is engaged and responsive. Worth the subscription for sure.

Response from developer

Thanks alot for the review! Yes, I activelly follow the feedback tab for any suggestions/feedback from users. Cheers!

Easy

Super simple, and eye opening

System update

App will not let me select the correct time. Restarted it multiple times. Keeps going to an hour after the time I selected.

Response from developer

Hello, thank you for the feedback! Could you try again in the newest version to see if you get the same issue?

bac is way off

Very promising app would be super useful but the Bac says I should be dead after 3 beers with a .5 bac which is laughable

Response from developer

Hi HPauto2! This app will give the Blood Alchol Concentration in per mille, not percent as you might be used to. Per mille is what is used in many european countries. I have it in the backlog to show it as percent for some countries, such as UK, the US and Australia

Pretty Good

Nice and easy. Only metric units though

Response from developer

Thanks for the feedback! Imperial units have now been added :)

Developer apps

FAQ

How accurate is Alcocurve's BAC estimation?

Alcocurve uses established formulas like Watson and Widmark to estimate blood alcohol levels. For precise measurements, physical instruments like breathalyzers are recommended.

Does Alcocurve have ads?

No, Alcocurve does not contain advertisements. The app is free to use with optional in-app purchases for premium features.

What are the subscription options for Alcocurve Pro?

Alcocurve Pro offers monthly subscriptions for $3.99 and yearly subscriptions for $29.99, unlocking features like drink history and alcohol calorie tracking.

Can I manage my Alcocurve Pro subscription?

Yes, you can manage or cancel your subscription anytime by going to Settings → Apple ID → Subscriptions. Subscriptions automatically renew unless canceled at least 24 hours before the current period ends.

Is Alcocurve available on Apple Watch?

Yes, Alcocurve is available on Apple Watch, allowing you to see your BAC and sober time on your wrist, and log drinks with a tap.

What is the age rating for Alcocurve?

Alcocurve has an age rating of +17, reflecting its use case for tracking alcohol consumption.

How often is Alcocurve updated?

The latest version of Alcocurve is 2.26.0, and it was last updated on October 28, 2026, indicating regular updates.

What user sentiment is reflected in Alcocurve's ratings?

Alcocurve has a rating of 4.2 stars from 15 ratings, suggesting generally positive user reception for its functionality.