# Bolus Guide > Diabetes insulin dose calculator for meal and correction doses. (iPhone/iPad app by David Vincent.) - Source: https://appshunter.io/ios/app/bolus-guide/id6450874936 (this page in markdown: same URL + `.md`) - Developer: [David Vincent](https://appshunter.io/developer/1679655762) - Category: Medical, Health & Fitness - Price: Free - Rating: 3.80/5 from 12 App Store ratings · 5 written reviews indexed - Age rating: 12+ - Requires: iOS 16.0 · 1 MB - Languages: American English - Released: 2023-07-03 - Data updated: 2026-06-02 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/bolus-guide/id6450874936/reviews.md ## What is Bolus Guide? Bolus Guide is a user-friendly tool designed to simplify life for those living with diabetes. This app is built with an intuitive interface to help calculate the correct amount of insulin needed for pre-meal bolus and correction doses. By inputting a few critical pieces of data - such as carb ratio, sensitivity factor, target blood glucose, current blood glucose, and meal carbs - Bolus Guide quickly generates the insulin dose you require. The calculated dose is provided as both an exact number and a rounded value for easy and safe insulin administration. The goal of Bolus Guide is to provide you with increased confidence in your insulin dosing, contribute to better glycemic control, and promote an overall improved quality of life. Please note that while Bolus Guide is a helpful tool, it should be used in conjunction with advice from medical professionals. Your health is our priority, and we aim to make living with diabetes a bit easier with Bolus Guide. ## Key features - Insulin dose calculation - Pre-meal bolus calculation - Correction dose calculation - Input carb ratio - Input sensitivity factor - Input current blood glucose - Input meal carbs ## Recent user reviews (5 of 5) All indexed reviews: https://appshunter.io/ios/app/bolus-guide/id6450874936/reviews.md ### 1/5 — How do I enter all info with the number pad covering the screen? *2025-08-20, version 1.3.1* The title says it all about my review. When you try to enter any numeric information, there is a huge number pad covering almost all of the places to add the info. Nothing is obvious to make the numpad minimize or close, and touching any part of the screen other than the numbers or where the numbers are put into closes the numpad. Basically useless unless there is some secret way to enter your carb etc numbers without having to just give up. 🤷‍♂️ ### 5/5 — Great, But… *2025-02-23, version 1.3.1* The app is awesome and easy to use. Only downside for me is that I like to use dark mode on my phone and the app isn’t friendly with it. You can’t see your inputs in the boxes unless your phone is in light mode. No big deal. It’s a free app with no ads which I love. But if the developer has time, maybe they could address that? ### 3/5 — Has an annoying inconvenience *2024-06-09, version 1.3.1* This app works great and helps me keep my glucose levels regulated but it has one problem. This app does not support dark mode. When dark mode is activated, the value fields appear blank. The numbers are there but the font color is the same as the background color. I have to turn off dark mode every time I use this app. ### 5/5 — Great App *2024-03-31, version 1.3.1* Works very well, UI looks nice. ### 5/5 — Simplicity! *2024-03-30, version 1.3.1* As a parent of a newly diagnosed T1D, I really appreciate the simplicity of this app for calculating my child’s bolus dose. My child is 10, so we are coaching them on calculating the bolus, and this takes out any math errors. The measurements are in 0.5 increments, which is nice for Humalog Jr. I use a separate app for calculating carbs. Again, I appreciate having this simple app that isn’t a giant phone memory drain, or too many features I don’t need! ## Frequently asked questions about Bolus Guide ### How does Bolus Guide calculate insulin doses? Bolus Guide calculates insulin doses by taking into account your carb ratio, sensitivity factor, target blood glucose, current blood glucose, and the amount of carbohydrates in your meal. It then provides both an exact and a rounded insulin dose. ### What information do I need to use Bolus Guide? To use Bolus Guide, you will need to input your carb ratio, sensitivity factor, target blood glucose, current blood glucose reading, and the number of carbohydrates in your meal. ### Is Bolus Guide suitable for all ages? Bolus Guide has an age rating of 12+, indicating it is intended for users aged 12 and older. It is designed to assist individuals managing diabetes. ### On which devices can I use Bolus Guide? Bolus Guide is available for use on iPhones and iPads, offering a convenient tool for Apple device users managing diabetes. ### How often is Bolus Guide updated? The latest version of Bolus Guide is 1.4, and it was last updated on March 3, 2026. This suggests regular updates to maintain functionality and potentially add new features. ### Does Bolus Guide have ads? No, Bolus Guide does not contain advertisements. The app is free to use and does not display any ads, providing an uninterrupted experience for users. ### What is the user rating for Bolus Guide? Bolus Guide has a rating of 3.8 stars based on 12 ratings. This indicates a generally positive reception from its user base. ### Should I consult a medical professional when using Bolus Guide? Yes, it is important to use Bolus Guide in conjunction with advice from medical professionals. While it is a helpful tool, it should not replace professional medical guidance for diabetes management. ## Version history (last 5 releases) ### 1.4 — 2026-03-03 • Improved dark mode support — input fields are now fully readable in dark mode. • New dose rounding option — choose between rounding to the nearest half unit or always rounding down. Configurable in Settings. • Customizable high dose warning — set your own threshold for when the high dose alert appears. • General UI improvements. ### 1.3.1 — 2023-10-30 Minor bug fixes ### 1.3 — 2023-10-30 * Added support for both mg/dL and mmol/L in the settings menu * Added a feedback button in the settings menu * Created better compatibility for landscape mode * Tons of additional improvements to the user interface ### 1.2.1 — 2023-07-11 * Added dark mode support for the number pad * Added visual indication of which input box is active * Made Bolus Guide backward compatible with iOS 16.0 ### 1.2 — 2023-07-06 Updates in this version include: * New button to clear settings allowing users to clear the current BG & meal carbs * Dark mode support * Added the ability to dismiss the number pad * Added scrolling to make it easier to use on smaller screens * Added additional error messages for results that are not valid numbers * Improved the readability of negative numbers for the correction units * Added a new methodology tab with detailed information on how values are calculated * Added a warning for potentially high results ## Apps similar to Bolus Guide | App | Rating | Price | Category | | --- | --- | --- | --- | | [Diabetes:M](https://appshunter.io/ios/app/diabetesm/id1196733537) | 4.5 (988) | Free | Medical | | [BlueLoop](https://appshunter.io/ios/app/blueloop/id457845904) | 4.0 (22) | Free | Medical | | [InPen Smart Pen](https://appshunter.io/ios/app/inpen-smart-pen/id1236236656) | 3.9 (184) | Free | Medical | | [Daily Dose — Insulin Log](https://appshunter.io/ios/app/daily-dose-insulin-log/id1582231714) | 4.8 (77) | Free | Medical | | [Virtual Breviary](https://appshunter.io/ios/app/virtual-breviary/id1541480296) | — | Free | Medical | | [Insulin-Rx](https://appshunter.io/ios/app/insulin-rx/id764908870) | 4.7 (3) | Free | Medical | ## More apps by David Vincent - [The Game of Royal Ur](https://appshunter.io/ios/app/the-game-of-royal-ur/id6757752391) All apps by David Vincent: https://appshunter.io/developer/1679655762 ## Related topics [bolus guide](https://appshunter.io/ios/topics/bolus-guide) · [boluscalc](https://appshunter.io/ios/topics/boluscalc) · [bolus calculator](https://appshunter.io/ios/topics/bolus-calculator) · [bolus](https://appshunter.io/ios/topics/bolus) · [insulin calculator](https://appshunter.io/ios/topics/insulin-calculator) · [insulin bolus calculator](https://appshunter.io/ios/topics/insulin-bolus-calculator) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-02.*