# Your weight, without the noise. Weigh in once a day. **WeightGlide** draws the trend that daily swings hide, the way *The Hacker's Diet* does it, and keeps it on your phone. Free, with no account, and nothing sent anywhere. [Download on the App Store](https://apps.apple.com/app/id6808949291) Morning after morning on a scale. The dots are what it said; the line is what your weight was doing. ### One number a day Weigh in each morning, or let your scale send it through Apple Health. That is the whole routine. Missed days are fine; the trend does not mind. ### The trend, not the scale A single reading moves with water, salt and the time of day. WeightGlide shows the exponentially smoothed trend underneath, the weight you are really at, and treats the morning's number as what it is: one noisy sample. ### Yours, on your phone No account, no server, no analytics: nothing is sent anywhere, because there is nowhere to send it. Delete the app and its data goes with it; what you sent to Apple Health stays in Health, yours to keep or remove. ## What it looks like ### Today ![The Today screen: the trend reading 79.5 kg with its last month as a line, today's weigh-in and how it sits against the trend, the energy balance, the body mass index and the goal with a date](/screens/en-today-640.4f3e4aa3.png) The trend and how it moved this week, today's number against it, the energy balance, and the goal with the date it is heading for. ### Chart ![The Chart screen: three months of pale weigh-ins, the blue trend gliding through them, the noise band around it and the green goal line](/screens/en-chart-640.7b74a731.png) Weigh-ins, trend, the band your daily noise usually stays inside, and the goal line. ### Log ![The Log screen: a list of days, each with the weight entered and the trend on that day, grouped by month](/screens/en-log-640.14d8a877.png) Every day you have entered, with the trend as it stood that morning, and each month summed up in its heading. ## Calm Mode Some weeks the number on the scale is the last thing you need to see. Calm Mode keeps the log and hides the daily arithmetic: no today's weight, no daily ups and downs, no countdown to the goal. What stays is the trend, once a week, in one sentence. Everything is still recorded: your entries, Apple Health, the export. Only what is shown changes, and one tap brings the numbers back. The same three screens, in Calm Mode: ### Today ![The Today screen in Calm Mode: the trend at the end of the week with a line of seven weekly points, one sentence about the week, the weekly review with the next review date, and the goal as a bare number](/screens/en-calm-640.4de8abd8.png) The week's trend, one sentence about it, the next review date, and the goal as a number. Nothing coloured, nothing counted down. ### Chart ![The Chart screen in Calm Mode: a single black line of weekly trend points over three months, the goal line in grey, and no daily points](/screens/en-calm-chart-640.16f4bc80.png) One point a week, in one colour. No daily dots, no band, no series to switch on and off. ### Log ![The Log screen in Calm Mode: a row per week with its dates, the number of weigh-ins, the trend at the week's end and its change](/screens/en-calm-log-640.1b80649e.png) Weeks instead of days: the dates, how many weigh-ins, the trend at the week's end and how it moved. Every day is still in the file. ## What's inside ### A goal with an honest pace Lose, gain or hold a range. The arrival date comes from the pace the trend is really moving at, with the plan's own date under it for comparison, and both say *around* because that is what they are. ### Energy balance without a food diary The slope of the trend, turned into calories a day: how far under or over maintenance you have actually been, from the scale alone. ### A weekly review Once a week, one sentence: how many weeks in a row the trend has moved one way, and at what average pace. Written from the same numbers every screen uses. ### Apple Health, both ways A weigh-in from a smart scale lands in the log through Health; a day you add by hand is written to Health, once. Nothing in Health is ever changed or deleted by the app. ### Your data, in files you can read Import the CSV from another app and get a trend at once. Export a CSV, or a complete backup, whenever you like; restoring is one file. ### Every number explained The ⓘ on the trend, the body mass index and the goal opens how that number is calculated and where the formula comes from. The maths is *The Hacker's Diet*, published by John Walker in 1991 and free to read online. ## Why it is free The maths behind WeightGlide is thirty-five years old and belongs to everyone: John Walker wrote *The Hacker's Diet* in 1991 and put it online for anyone to read. Weighing yourself and doing the arithmetic on the result should not cost a subscription. So the core of the app is free and stays free, and neither your data nor the maths is ever behind a paywall. WeightGlide Pro is a one-time purchase for conveniences: widgets, a reminder, a report, a lock. It pays the developer's yearly fee, and there is a tip jar for anyone who wants to say thanks. No ads, no analytics, no account: the app has no server, and that is the point. ## Free, and what Pro adds ### Free, and staying free - Daily weigh-ins and the smoothed trend - Goals, pace and a maintenance range - The chart, the energy balance and the body mass index - Apple Health, both ways - CSV import and export, full backup and restore - The weekly review and Calm Mode - Kilograms, pounds or stones ### WeightGlide Pro, one purchase - Widgets and Shortcuts - A daily reminder - Phase markers on the chart - A PDF report - Face ID lock - Alternate icons One-time purchase with Family Sharing. No subscription, no ads. On the App Store now, for iPhone with iOS 17 or later. [Download on the App Store](https://apps.apple.com/app/id6808949291)