Privacy Policy

Fighter Cut · Last updated 23 August 2026

Fighter Cut is a weight-cut and nutrition tracker for combat athletes. It is built local-first: by default, everything you log lives in storage on your own device and is never sent anywhere. This document explains exactly what that means, and names the one optional feature that is an exception.

What stays on your device

Unless you deliberately turn on the optional gym feature described below, all of the following is stored only on your device, in your browser's or the app's local database, and is never transmitted to us or to anyone else:

Your profile — name, sex, birth year, height, weight, sport, weight class, fight date
Food logs, meals, and everything you scan or search
Body measurements and body-fat readings
Workouts, training sessions, and fasting timers
Your supplement stack and check-offs
Your generated cut plan and calorie/macro targets
Any Apple Health data you connect or import (see below)

Weigh-ins are the exception, and only if you have an account. If you create an account, your weigh-ins (date, weight, and the note you typed with it) sync to our server so they survive a lost phone and follow you to a second device. They are locked to your account at the database level — nobody else can read them, not another athlete and not a coach, unless you separately switch on club sharing below. If you have no account, weigh-ins never leave the device like everything else on this list.

We do not operate a server that receives this data. There is no account required to use the app, and deleting the app (or clearing site data) deletes this information permanently — so use the backup export in Settings if you want to keep it.

Apple Health

Fighter Cut can read a limited set of Apple Health data — body mass, body fat percentage, active and basal energy, steps, resting heart rate, sleep, and workouts — so your cut plan and daily calorie target reflect what your body is actually doing. There are two ways to provide it: tapping "Sync now" in the iOS app, which asks Apple for read access and then reads roughly the last four months on your device, or importing an export file you generate yourself in the Health app. Both paths are optional, and neither runs unless you start it.

Health data never leaves your device. It is read, processed on-device, and written to the same local database as everything else. Fighter Cut writes nothing back to Apple Health, never stores health data in iCloud, and never uses it for advertising, marketing, or data mining. Read access is requested only when you tap "Sync now", and you can change or revoke it at any time in iOS Settings under Health → Data Access.

Analytics and tracking

There are none. Fighter Cut contains no analytics SDK, no advertising network, no third-party trackers, and no automatic telemetry of any kind. Nothing is collected in the background, nothing is sent because you opened a screen, and no profile of you is built. We have nothing to sell to anyone because we never receive your data in the first place.

There is also no automatic crash reporter. If the app breaks, nothing is sent unless you choose to tell us — see the next section.

When you report a bug

The app has a Help & support screen where you can send us a bug report or a question. Nothing on that screen sends anything until you press Send, and you can see the exact payload before you do.

A report always contains what you typed. It can also contain, only if you leave the switches on:

Your setup — app version and build, device type, screen size, language, time zone, whether you are online, and how many rows are in each local table. Counts only. Never what is in them.
What you were doing — the last 40 screens you opened and any errors along the way, with links, email addresses and long numbers stripped out both on your device and again on our server.
A screenshot, only if you attach one. Everything visible in the image is uploaded, so check it first.
Your account id, only if you are signed in, so the report follows your account to your other devices. Signed out, a report carries no identifier at all.

A report never contains your food log, your weigh-ins, your measurements, your notes, your supplement stack, or anything from Apple Health. That is structural, not a policy: the code that assembles a report reads row counts and never row contents.

We do not ask for your email address and we do not send you any. There is no support mailbox. You get a reference code when a report is filed, and we answer inside the app under Help → Your reports. Signed out, that reply is readable only on the device you filed from — wiping the app's data removes the key that reads it back.

An error message is written by the app, but it can occasionally quote something you typed — which is why the whole payload is shown to you before it is sent. Reports are kept until we resolve them, and are deleted on request: file a report of type “My data” quoting the reference code of the one you want erased.

The one exception: club and gym accounts

Fighter Cut has an optional feature for gyms and fight teams. It is off unless you seek it out, and the tracker never asks you to create an account. If you choose to use it:

You create an account with an email address and password, handled by our authentication provider (Supabase). This is the only point at which we hold an identifier for you.
You may publish a fighter profile — display name, weight class, record, short bio, and a photo if you upload one — visible to your club.
You may separately opt in to sharing progress with your coach. This is a second, explicit switch on top of having an account. When on, it shares your weigh-ins and training sessions (type, duration, distance, effort) with your club's staff. It does not share your food logs, measurements, supplements, or health data. Turning it off deletes the shared history from our servers.

Club data is access-controlled so that only you and your own club's staff can read your rows. If you never create an account, nothing is uploaded by simply using the app — the only thing that can leave the device is a bug report you write and send yourself.

Other network requests

When you search the food or supplement catalogues, the app may query public reference databases (such as USDA FoodData Central, the NIH Dietary Supplement Label Database, and Open Food Facts) to look up an item. These requests carry your search term only — never your logs, your identity, or your health data. Product links may carry an affiliate tag, which tells the retailer the visit came from Fighter Cut; it does not tell them who you are.

Children

Fighter Cut is intended for use by adults, or by younger athletes under the guidance of a parent, guardian, or coach. Weight cutting carries real health risks and should never be undertaken by a minor without adult supervision and professional advice.

Not medical advice

Fighter Cut is not a medical service. We are not doctors, registered dietitians, or licensed healthcare professionals. Everything in this app — including cut plans, nutrition targets, and supplement information — is general educational information for athletes, not medical advice, diagnosis, or treatment. Weight cutting carries serious health risks when done improperly. Always consult a qualified physician or registered dietitian before making significant changes to your diet, starting supplements, or undertaking a weight cut. You use this app at your own risk.

Changes to this policy

If the app's data handling changes, this page changes with it, and the date at the top is updated. Material changes to what is collected or shared will be surfaced in the app.

Contact

Fighter Cut is published by SARL Machetto Douglas, 161 Rue de la Confrérie, 74500 Publier, France, which is the data controller for the club and waitlist data described above. Questions about this policy or about your data can be sent to privacy@fightercut.com.