Bolus Calculator
Carb Counter, CU & BU
Only for iPhone
Free · In‑App Purchases · Designed for iPhone
iPhone
Counting carbs made simple: scan or search a product, enter the amount – your CU and BU appear instantly, with every intermediate value shown.
The Bolus Calculator helps you count the carbohydrates in a meal and convert them into CU or BU – then applies the factor you entered yourself. Every intermediate value stays visible, so you can check each step yourself. No sign-up, no registration: your data stays private. You can sync several devices – perfect for managing your child's meals together as two parents. Scan a food or search by keyword, enter the amount, done – the app knows tens of thousands of products and their carb content, and you can save meals as templates. And you decide for yourself: buy once instead of subscribing.
You work in carbohydrate units (CU) or bread units (BU) and with the factor you set yourself for each time of day. The app contributes no values of its own: it counts the carbohydrates and applies your factor to them. Every step of the calculation stays visible. The app displays all values of the calculation, so you can spot errors in the databases or in your own entries yourself.
In addition, you can synchronize multiple mobile devices and thus, for example, manage the meals of your child with two parents together. The app does not require any registration.
NOTE: No medical advice! Please read this notice carefully before using this app.
Our app does not constitute medical, legal or other professional advice. Our app and its content are not intended to be, and should not be used as, a substitute for professional medical advice, diagnosis or treatment, or as a substitute for advice from medical professionals. Always consult your physician or other qualified health care provider with questions about a medical condition. Never disregard or delay seeking professional medical help based on content you have read or seen in this app.
ActNow does not recommend or endorse any specific tests, physicians, health care professionals or experts, professionals or experts in other fields, interviewees, medical hypotheses, medical facilities, medical services, medical products, products and services of any kind, procedures, medications, treatment strategies, advertisers, companies or other entities that may be mentioned in the App and its content, in advertisements or elsewhere. The information and intellectual property available in this app is intended as a general source of information on the topics covered and is not medical advice.
NOTE: Auto-Renew Subscription.
In our app, you can purchase an auto-renewing subscription through an in-app purchase. If you don't subscribe, you can also buy the app once or use it for free on a limited basis. If a subscription ends, you can continue to use all the meals you have collected up to that point and your history. So you don't lose access to your data when your subscription ends. Restrictions arise when searching for products and creating new meals.
Your subscription will be charged to your iTunes account upon confirmation of purchase and will automatically renew (for the selected period) unless auto-renewal is turned off at least 24 hours before the current period expires.
The current subscription cannot be cancelled during the active subscription period; however, you can manage your subscription and/or turn off auto-renewal by visiting your iTunes account settings after purchase.
Privacy Policy: https://www.actnow-gmbh.de/apps/bolus-calculator/privacy
Terms of Use/EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Translated with www.DeepL.com/Translator (free version)
Ratings & Reviews
- Foods you created yourself are now reliably found by the search - until now the search came back empty while "Recent" was selected, and your own entries gradually disappeared from "Recent"
- A portion is now tied to its serving size: if you delete a serving size, a saved meal no longer quietly counts with a different one - it tells you which one is missing
- The history shows the factor and insulin figure exactly as they stood on screen when you saved
- The factor is held for the meal you are counting and no longer switches to the next time range mid-count
- The factor is now labelled as IU/CH or IU/BU
- The "already given" slider snaps to your configured step size across its whole range
- Barcode product import: serving sizes such as "1 biscuit (12.5 g)" are read correctly, and products with no carbohydrate value no longer appear as 0
- Pasta, rice and pulses from the barcode and online import carry the label "uncooked" when their values are for the uncooked product
- Serving sizes of 0 g can no longer be saved
- Header labels are shown in full in every language
The developer, Actnow GmbH, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- User Content
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Actnow GmbH
- Size
- 94 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 15.6 or later.
- iPhone
Requires iOS 15.6 or later. - iPod touch
Requires iOS 15.6 or later. - Mac
Requires macOS 12.5 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English and German
- Age Rating
13+
- 13+
- Infrequent
Medical Treatment information
Contains
Health or Wellness Topics
- In-App Purchases
Yes
- Monthly subscription $3.99
- Subscription One Year $22.99
- One time purchase $39.99
- Copyright
- © 2026 Actnow GmbH
