# bonkproof! — Precision Fueling for Cyclists

> Precision Fueling for Cyclists (iPhone/iPad app by Daniel Muschinski.)

- Source: https://appshunter.io/ios/app/bonkproof/id6771059670 (this page in markdown: same URL + `.md`)
- Developer: [Daniel Muschinski](https://appshunter.io/developer/1896770076)
- Category: Sports, Lifestyle
- Price: Free
- Age rating: 4+
- Requires: iOS 26.0 · 2 MB
- Languages: American English, German (Germany)
- Released: 2026-05-22
- Data updated: 2026-06-03
- User reviews in markdown: https://appshunter.io/ios/app/bonkproof/id6771059670/reviews.md

## What is bonkproof!?

Ever had that feeling? Two hours in, legs going heavy, head starting to spin — and you know you didn't eat enough. Again.

bonkproof helps you avoid that. No guesswork, no rules of thumb — just science-based estimates, calibrated to your data. Enter your weight and FTP once, then before each ride just add power and duration. The rest is automatic.

What you get:

• Carbs per hour - estimated target for your training zone
• Fluid needs per hour - based on weight, sweat rate, and temperature
• A fueling schedule - what to eat and drink, and when
• A packing checklist - gels, bottles, everything at a glance

Built for road cyclists who want to know what their body actually needs. No account, no subscription, no cloud. Everything stays on your device.

Estimated values are based on sports science guidelines (Jeukendrup 2014, Sawka et al. 2007, Thomas et al. 2016) and are not medical advice. If you have any health conditions, please consult a physician before use.


## Version history (last 5 releases)

### 2.5 — 2026-06-02

New in 2.5:

• Barcode scanner: Scan the barcode of your gel, bar or snack — nutrition is pulled automatically from Open Food Facts and saved as your own product. Find it in Settings → Custom Products. Manual entry stays available, of course.
• Privacy: the barcode is looked up once, only when scanning — no tracking, no ads.

### 2.4 — 2026-05-29

New in 2.4:

• Default product: Tap any product in Custom Products to set it as the default for ride calculations
• Bugfixes & overall improvements

### 2.3 — 2026-05-27

New in 2.3
- Pre-ride meal: new section with carb recommendation (3–4 g/kg, 3 hours before start), food examples, and an optional on-device reminder.
- Bug fix: fueling plan showed empty for products with high carbs per serving.

### 2.2 — 2026-05-26

What's new in v2.2
- 7 power zones — the app now uses the full Coggan/Allen model (Z1–Z7), including Anaerobic and Neuromuscular. Zone badge and formula sheet updated accordingly.
- Race templates — tap the flag icon to pre-fill distance and target power for common events: Gran Fondo 100/150, Ironman bike leg, 70.3 bike leg, Cyclosportive, Criterium.
- Heat warning — slide the temperature above 32°C and a reminder appears to drink more. Tap × to dismiss for that session.
- Pack list confetti — check off your last item and something small happens. No spoilers.
- Launch screen — the app now has a proper startup screen instead of a white flash.
- Bug fix: custom products with high carbs per unit (e.g. Maurten 100, bars) were showing "no solid food needed" in the fueling schedule.
- A bunch of color and contrast fixes, especially in dark mode.

### 2.1 — 2026-05-25

New app icon. 7 Coggan power zones (Z1–Z7). Heat warning at 32°C. Keyboard navigation improvements. Various bug fixes and visual polish.

## More apps by Daniel Muschinski

- [Tire.IQ](https://appshunter.io/ios/app/tireiq/id6772541925)

All apps by Daniel Muschinski: https://appshunter.io/developer/1896770076

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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 2026-06-03.*