FuelUp
Health & Fitness · iPhone · Apple WatchLunch logged in five seconds.
FuelUp is low-friction tracking for the four numbers that actually move: calories, protein, water and body weight. Open the app, tap two chips, and lunch is logged in under five seconds. Everything lives in a local database on your iPhone — there is no account, no analytics, and no server of ours to leak.
Nutrition apps ask for an account, a subscription, and forty seconds of searching before you can log a sandwich. Most people quit in week one — not because they stopped caring, but because the app cost more attention than the habit was worth.
Key features
Two-tap logging
A ranked row of suggestion chips learns what you eat and when. The engine scores every catalog item on recency, frequency and time-of-day match, hides what you already logged today, and falls back to a curated set before it knows you.
A ring that means something
Calories, protein and water on one hero ring, with targets derived from your own BMR and TDEE — never below a hard safety floor, whatever goal you pick.
Weight trend, not weight noise
A centered moving average cuts through day-to-day water swings, then projects an ETA to your goal and tells you whether you're on pace — with the math unit-tested before it ever reached a screen.
On your wrist
A watchOS companion and Home Screen widgets put today's ring and the fastest logging path one glance away.
Reminders that read the day
Nudges are scheduled from your actual pacing model, not a fixed clock — quiet when you're on track, present when the day is getting away from you.
Yours to take
Full export and permanent deletion from Settings. No feature holds your own history hostage.
How it's built
iOS 26 only, with zero third-party dependencies. The numeric core — BMR/TDEE, the safety floor, ETA and on-pace math, the moving average, and the suggestion ranking — ships as a separate Swift package that cannot import SwiftUI or SwiftData, and it is covered test-first.
Data Not Collected. Food logs, water and body weight are stored only on your device. The optional web-search action opens a standard search for a food name you type — nothing about your profile, weight or health is attached.
Full privacy policy →
