Comparison

Virtual Breviary vs Bolus Guide

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Virtual Breviary

Features
Read full description

Virtual Breviary app can calculate dosage of heparin and insulin. The app stores anonymous data in the cloud and deploys machine learning algorithms to find the optimal dosage. App is easy to use and ready to integrate into any hospital IT systems through APIs.

About

Bolus Guide

This app helps individuals with diabetes calculate precise insulin doses for meals and corrections. It uses user-inputted data like carb ratios and current glucose levels to provide exact and rounded insulin amounts, aiming to improve glycemic control and quality of life.

Highlights
  • Insulin dose calculation
  • Pre-meal bolus calculation
  • Correction dose calculation
  • Input carb ratio
  • Input sensitivity factor
  • Input current blood glucose
  • Input meal carbs
Features
Read full description

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.

Screenshots

Virtual Breviary3 screens
Bolus Guide4 screens

Verdict

The call

The clearest difference is update cadence: Bolus Guide at every 5 days against Virtual Breviary's fortnightly. Virtual Breviary's advantage is iOS requirement (13.0 vs 16.0). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Virtual Breviary ships an update fortnightly, Bolus Guide every 5 days. The most recent releases landed on September 23, 2026 and June 2, 2026 respectively.

Scorecard2 real differences · 8 level
Virtual Breviary versus Bolus Guide: the parameters behind the verdict, then further details
ParameterVirtual BreviaryBolus Guide
PriceFreeFree
Rating—3.8 (12 ratings) — better
Positive reviews—60.0% of reviews
Number of ratings—12 — better
Update frequencyFortnightlyEvery 5 days — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better16.0
Further details — not scored
Size18 MB1 MB
Age rating4+12+
DeveloperIKEMDavid Vincent

In-app purchases

None

Virtual Breviary

No in-app purchases

None

Bolus Guide

No in-app purchases

Questions

Is Virtual Breviary free?
Virtual Breviary is free to download, with no in-app purchases.
Is Bolus Guide free?
Bolus Guide is free to download, with no in-app purchases.
Do Virtual Breviary or Bolus Guide have ads?
Neither Virtual Breviary nor Bolus Guide shows ads.
Which is updated more often, Virtual Breviary or Bolus Guide?
Virtual Breviary ships an update fortnightly, and Bolus Guide every 5 days. Most recently, Virtual Breviary was updated on September 23, 2026 and Bolus Guide on June 2, 2026.

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