Patchy Bolus Log
Insulin logbook & carb math
Only for iPhone
$4.99 · Designed for iPhone. Not verified for macOS.
iPhone
Patchy Bolus Log is a logbook for people who already do the arithmetic — carbohydrates divided by your carb ratio, glucose above target divided by your correction factor. It does those two divisions, shows you both halves of the answer, and keeps the record on your iPhone.
It ships no dosing knowledge of its own. There is no drug database, no suggested starting values, and no adjustment logic. Every number in the calculation comes from the plan you worked out with your own diabetes team.
WHAT IT DOES
• Shows the carb dose and the correction dose separately, so you can see which half of the number came from where
• Saves every entry together with the inputs and the settings in force at the time, so a row still means something months later
• Exports your full history as a CSV through the iOS share sheet, in canonical units with a period decimal — it opens anywhere
WHAT IT REFUSES TO DO
• Below 3.9 mmol/L or 70 mg/dL it will not show a dose at all. It tells you to treat the low first, and there is no override.
• Every result is capped at a maximum you set. The cap is always shown, never applied silently.
• If you logged a correction inside your stacking window, it says so before you log another.
• It does not estimate insulin on board, read a CGM, or drive a pump. Those are decisions this app is not qualified to make.
PRIVATE BY CONSTRUCTION
• No account, no sign-in, no profile
• No network requests of any kind — it works identically in airplane mode
• No analytics, no advertising, no trackers, no crash reporting
• No Apple Health access; the app requests no permissions at all
• Your log never leaves the device unless you export it yourself
DETAILS THAT MATTER
• Light and dark appearance, VoiceOver support, and Dynamic Type throughout
• Available in English, Português (Brasil), Deutsch, Svenska and Suomi
• Carbohydrate exchanges are always 15 g and shown as "exc" — never relabelled to a unit that means a different quantity
• Insulin is shown as U in every language
IMPORTANT
Patchy Bolus Log is not a medical device and does not provide medical advice. It is a logbook and an arithmetic aid, and it is not a substitute for your healthcare provider. Every value used in a calculation is one you entered yourself. Always confirm your insulin doses with your diabetes care team, and never change your insulin plan because of something this app displayed. If your glucose is low or you feel unwell, treat it and seek medical help.
Terms of Use (EULA): https://patchy-bolus-log.allaudindeveloper.workers.dev/terms
Privacy Policy: https://patchy-bolus-log.allaudindeveloper.workers.dev/privacy
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Waleed Allaudin, 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 Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Waleed Allaudin
- Size
- 43.2 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 16.4 or later.
- iPhone
Requires iOS 16.4 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 4 more
- English, Finnish, German, Portuguese, Swedish
- Age Rating
16+
- 16+
- Frequent
Medical Treatment information
Contains
Health or Wellness Topics
- Copyright
- © 2026 PreflightAI. All rights reserved.
