# Patchy Bolus Log — Insulin logbook & carb math

> Insulin logbook & carb math (iPhone/iPad app by Waleed Allaudin.)

- Source: https://appshunter.io/ios/app/patchy-bolus-log/id6803606858 (this page in markdown: same URL + `.md`)
- Developer: [Waleed Allaudin](https://appshunter.io/developer/1887657858)
- Category: Health & Fitness
- Price: $4.99
- Age rating: 17+
- Requires: iOS 16.4 · 41 MB
- Languages: American English, Finnish, German (Germany), Brazilian Portuguese, Swedish
- Released: 2026-09-02
- Data updated: 2026-09-17
- User reviews in markdown: https://appshunter.io/ios/app/patchy-bolus-log/id6803606858/reviews.md

## What is Patchy Bolus Log?

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


## Version history (last 1 release)

### 1.0 — 2026-09-02

No release notes.

## More apps by Waleed Allaudin

- [CarbTrack: Diabetes Calculator](https://appshunter.io/ios/app/carbtrack-diabetes-calculator/id6761077101)

All apps by Waleed Allaudin: https://appshunter.io/developer/1887657858

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*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 2026-09-17.*