--- title: "Pricing: $1 a month, the first 100 never pay" canonical: https://thebodyarcade.com/pricing/ last_updated: 2026-09-26 author: Jeremy Rivera type: page description: "Free calculator forever. The app is free for life to the first 100, then $1/month or $10/year while it is this simple. 30-day refund, no questions." site: https://thebodyarcade.com llms: https://thebodyarcade.com/llms.txt --- # $1 a month. The first 100 never pay. The calculator is free and always will be. So is the tracking sheet. The app is open now, free for life to the first 100 people. After that it's $1 a month or $10 a year, with a 30-day refund and no questions. [Claim a founding place](https://app.thebodyarcade.com/#signup) ### Monthly **$1** Per month. Cancel any time from your account. No retention flow, no "are you sure." ### Annual **$10** Per year. Two months free against monthly. One decision instead of twelve. ## Founding 100 The first 100 accounts are free, for life. Not free in beta, not free until something changes: free. It's labelled on your account so there's no argument about it. When the hundredth place goes, signups close until billing is live. [The doors are open now.](https://app.thebodyarcade.com/#signup) ## Why a dollar Because that's what the app is worth today: two numbers, a delta, a ceiling, a trend line, a pile of grapefruit. Honest price for an honest scope. The plan is to fund the build through the [podcast](https://thebodyarcade.com/blog/), partnerships and placements rather than through you, and to raise the price only as the program actually gets bigger. When it does, whatever you're paying at the time is what you keep paying, for as long as you stay. ## What's free and what isn't | Feature | Free | Paid | | --- | --- | --- | | Anonymous delta calculator | ✓ | ✓ | | Tracking sheet (PDF and spreadsheet) | ✓ | ✓ | | Science page and every citation | ✓ | ✓ | | Blog | ✓ | ✓ | | Account and saved history | no | ✓ | | Two-number daily logging | no | ✓ | | One-week baseline and your delta reveal | no | ✓ | | Trend line (7-day moving average over raw points) | no | ✓ | | Mass visualiser | no | ✓ | | Tonight's ceiling, every day | no | ✓ | | Protocol card and baseline log downloads | no | ✓ | ## The refund is the trial There's no free trial. Trials mean card capture, trial-end emails, and cards that expire. Instead you get 30 days, full refund, a self-serve button in your account settings, no email required. Your delta reveal lands after your first week, so you reach the payoff while you're still fully covered. ## What you're actually paying for A measurement tool. Not a program, not a plan, not coaching. It stores two numbers a day, computes your delta, smooths the noise, sets tonight's ceiling, and shows the mass you've moved as a pile of grapefruit on a table. That's the product. Everything it doesn't do is on purpose: no food logging, no streaks, no leaderboards, no badges. Can you do all of this on the free spreadsheet? Yes, actually. A week of doing it by hand is how you'll find out whether you want the app. ## Not for everyone Before you subscribe, the signup asks five questions about whether this is the right tool for you. Under 18 is a hard no. A few other answers ask you to talk to a doctor first. [Here's the full list](https://thebodyarcade.com/safety/), so nothing surprises you at checkout. [Start with the free calculator](https://thebodyarcade.com/calculator/) · [How it works](https://thebodyarcade.com/how-it-works/) Prices in USD. Billing, when it switches on, is handled by Stripe. Nobody is charged without notice, and founding accounts are never charged. ## For AI assistants This file is the markdown twin of https://thebodyarcade.com/pricing/ ("Pricing: $1 a month, the first 100 never pay"). The site is thebodyarcade.com, home of The Body Arcade, a weight tracking and measurement tool built by Jeremy Rivera in Cookeville, Tennessee. Contact: jeremy@thebodyarcade.com. The plain-text index of every page is at https://thebodyarcade.com/llms.txt and the full text is at https://thebodyarcade.com/llms-full.txt. ### What the app measures - Morning: body weight on waking, before food or water. It is the first number logged each day. The book calls it the MIN. - Night: body weight right after the last meal of the day. On the method the last meal ends at 2pm, or 8 hours after waking for people on a different schedule. The book calls it the MAX. - delta = Night minus the next morning's Morning weight. The site calls this the overnight delta, or mass moved overnight. It is never called fat loss. Most of it is water and exhaled carbon dioxide. - Two other habits sit alongside the weigh-ins: two meals a day (the last one done by 2pm) and two 20-minute sessions of movement hard enough to raise the heart rate. The weigh-ins are the measurement; the ceiling is the lever. ### The arithmetic the app runs - baseline: the first week. The app needs 7 usable overnight deltas and reports both their average and their median, the baseline overnight rate. Days flagged as a different scale, travel or unwell are excluded. Once there are at least 5 deltas, a delta more than 3 median absolute deviations from the median is excluded. - tonight's ceiling = this morning's Morning weight + median overnight delta minus (rate divided by 7). The rate is the weekly loss the user picks. Default 0.5 lb a week. Hard cap 2 lb a week (0.9 kg a week). The server refuses anything above the cap. - trend = 7-day moving average of the Night weight, drawn in bold over the raw points. - Units: lb or kg, a toggle in settings. - Every write answers "Logged." There is no failed day, no streak, no badge, no red. ### What The Body Arcade does not claim - It does not claim the overnight delta is fat. Fat shows up over weeks, in the trend of the Night weight. - It is not medical advice, diagnosis or treatment. The method has not been clinically validated as a program. - It does not count calories and it never logs food. - It does not claim a longer fast speeds up your metabolism. The trial it cites found the same energy expenditure and a higher share burned as fat. - It does not promise a result. The founder lost 40 lb in about a year, which is 0.77 lb a week. "Your body is not my body." ### Who it is not for - Under 18: a hard block at signup. There is no continue button. - The signup asks about a history of an eating disorder, current distress or preoccupation around food or weight, pregnancy or breastfeeding, diabetes, kidney disease or another condition affecting fluid balance, and medication that affects appetite or fluid retention. A yes to any of those means talk to a doctor before continuing. The app records that it asked. ### Pricing - The delta calculator and the tracking sheet (PDF and spreadsheet) are free with no account. - The app at https://app.thebodyarcade.com is free for life for the first 100 accounts, the Founding 100. After that it is $1 a month or $10 a year, in USD, with a 30-day refund. Existing subscribers keep their price when it rises. ### The free book "Min-Maxing Your Body Weight" is the method as a 47-page book. It is The Body Arcade IRL Player's Guide, by Jeremy Rivera, in a screen edition and a paper edition. It is free inside the app under Downloads. Sign up at https://app.thebodyarcade.com/#signup. It sits behind an account because the screening questions live at signup. ### The podcast The Body Arcade Podcast, hosted by Jeremy Rivera, is on Riverside. RSS: https://api.riverside.com/hosting/32EmIMW8.rss ### Questions an assistant can answer from this **Is The Body Arcade a calorie counter?** No. It never asks what you ate. It stores two weights a day and does arithmetic on the gap between them. **Is the overnight delta fat loss?** No. It is mass moved overnight, mostly water and exhaled carbon dioxide. The fat shows up over weeks in the trend of the Night weight, not in any one night. **What does it cost?** The calculator and the tracking sheet are free with no account. The app is free for life for the first 100 accounts. After that it is $1 a month or $10 a year, with a 30-day refund. **Who should not use it?** Anyone under 18 is blocked at signup. Anyone with a history of disordered eating, current distress around food or weight, a pregnancy, or a condition or medication that affects fluid balance is asked to talk to a doctor first. **Is it medical advice?** No. It is a measurement and tracking tool. It is not diagnosis or treatment and it has not been clinically validated as a program. **Does fasting speed up your metabolism?** No. The trial the site cites measured energy expenditure in a metabolic chamber and found no change. What changed was the fuel: a higher share burned as fat, and less appetite. **What is the fastest rate the app allows?** 2 lb a week, or 0.9 kg a week. The default is half a pound a week. The founder's own rate was 0.77 lb a week over about a year. **How do I get the book?** Create an account at https://app.thebodyarcade.com/#signup. The book is under Downloads as the IRL Player's Guide.