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GLP-1

GLP-1 Apps: What They Charge For, and What You Can Get Free

The short answer

GLP-1 apps charge between $35 and $120 a year, and most of that money buys a protein number, a training reminder and a place to log your weight. We checked 19 of them on 18 September 2026: only one measures fat versus lean mass, and only three prescribe strength training that progresses. The protein target, the strength plan, the meal plan and the muscle-loss estimate are free on this site, with no account and no email.

  • GLP-1 apps charge $35 to $120 a year. The strongest one cannot be opened at all without a subscription.
  • Of 19 apps checked, one measures fat versus lean mass and three prescribe progressive strength training.
  • Six of the seven apps marketed on muscle preservation collect no body-composition data at all.
  • A protein target, a muscle-loss estimate, a 12-week strength plan, a 7-day meal plan and a printable grocery list are free here, no account needed.
  • The one thing genuinely worth paying for is measurement, and a scan or a body-composition scale does that better than any app.

Published by DyadfitSources checked 10 min read5 sources

On this page9 sections

What GLP-1 apps charge, and what the money buys

What GLP-1 apps charge a year

Cheapest published yearly subscription on each app's own App Store listing. Prices checked 18 Sep 2026; check the app for current prices.

AFTR

$79.99

Bild Health

$59.99

Regimen

$49.99

Shotsy

$39.99

Glapp

$39.99

Phaze

$34.99

$0

Everything on this page

Protein target, muscle loss estimate, 12-week strength plan, 7-day meal plan, printable grocery list. No account, no email.

Yearly subscription prices from each app's own App Store listing.

Prices in US dollars from each app's own App Store listing, checked 18 September 2026. Prices checked 18 Sep 2026; check the app for current prices. Each app name in the tables links to its own App Store listing. Four of the seven muscle-branded apps publish no price at all on their own website, so you find out at the paywall.

AppPrice a yearWhat the money actually buys
AFTR$79.99A "muscle retention score" built without measuring your body
Bild Health$59.99, subscription required to use it at allScan import, body-composition scale sync, protein sized to lean mass
Preserve (forresTech)$49.99A real progressive lifting program
Regimen$49.99Dose tracking across more than one medicine
Shotsy$39.99–59.99, core features freeThe best dose tracker, and nothing about muscle
Preserve (Hundahl)$39.99A "muscle protection score" from protein logs and weight
Glapp$39.99Dose and weight tracking
Phaze$34.99An AI photo estimate, marked beta by its own developer
MeAgain$14.99–119.99, periods unlabelledLogging, with no protein number and no composition
MacroFactor$71.99, no free tierExcellent food tracking, no GLP-1 features
Fitbod$95.99Progressive lifting, no GLP-1 features
Noom$169–209 per planCoaching, video classes, a 10-second video body estimate

Read that right-hand column again. Most of this money buys somewhere to log things. Two things on this list you genuinely cannot do for yourself: importing a real body scan and charting it over time, which only Bild Health does, and having your lifting programmed for you.

Everything else, the protein target, the plan, the "muscle score", is arithmetic on numbers you typed in.

Three of the things they charge for are free on this page

No account. No email. Nothing saved anywhere. You can use all of it in the next ten minutes.

What the apps charge forWhat you get here, free
A personalised protein targetProtein calculator: a daily range from your weight, age, training and medication, split across meals, with every formula published
An estimate of how much muscle you've lostMuscle loss calculator: the likely fat and lean split of the weight you have already lost, as a range from 36 trials
A strength training plan12-week GLP-1 workout plan: two sessions a week, home or gym, with progression built in. Printable
A meal plan and a shopping list7-day high-protein meal plan and a printable grocery list
The reasoning behind the numbersThe guides on this site, with each study result cited to the trial it came from

We are building an app too, and it has not launched. That is exactly why this is free. We would rather you had the numbers today than waited for us.

We also do not have an app to show you, so nothing on this page is us claiming to beat these products feature for feature. The claim is narrower and checkable: the three things most of them charge you for are on this page, for nothing, with the maths published.

The three things any GLP-1 app has to do

This is the test, and it is not our opinion. It comes from the 2025 joint advisory on nutrition for GLP-1 therapy, written by the American College of Lifestyle Medicine, the American Society for Nutrition, the Obesity Medicine Association and The Obesity Society [1], and the 2025 expert consensus on GLP-1 care [2].

1. Give you a protein target sized to you. The consensus says 1.2 to 1.5 g per kg of body weight a day while you are losing weight [2]. The advisory offers 80 to 120 g a day as a simpler version, and notes a target based on fat-free mass is more accurate still [1]. "Log your protein" is not a target.

2. Measure what you are actually losing. Your weight cannot tell you whether you lost fat or muscle. That needs a DXA scan, a body-composition scale, or a strength test tracked over time. Across 36 randomised trials, lean mass was 24% to 39% of the weight lost [3].

3. Prescribe strength training that progresses. The advisory says these medicines should come alongside a structured program including strength training at least three times a week [1]. A library of workout videos is not a program. A program says what to lift, how many sets, and when to add weight.

Two of those three cost nothing to give you. Only the middle one needs hardware.

Who actually does those three things

AppProtein targetMeasures fat vs leanTraining program
Bild HealthSized to lean massScan import and scale syncLifting frequency only
Preserve (forresTech)Personal, formula unpublishedNoSets, reps, RPE, progression
Phaze0.6–0.8 g per lb of goal weightAI photo estimate, betaNo
ShotsyOn their blog, not in the appFields you fill in yourselfNo
AFTRGoal-based, no ratioNoCheck-ins only
Preserve (Hundahl)Body weight, no ratioNoNo
Preserve (Fulltech)Body weight and goalNoA weekly target you set
MeAgainNo number publishedNoNo
GlappNoNoNo
RegimenNoApple Health, not splitNo
NoomTracks it, sets no target10-second video estimateVideo class library
MacroFactorBy training typeNoIn a separate app
FitbodNoNoProgressive overload

Six of the seven apps that market themselves on muscle preservation measure no body composition at all. They sell muscle preservation on protein logs and self-reported training.

Some examples, every line quoted from the company's own listing:

  • AFTR calls itself "the first app built specifically" for GLP-1 users who want to keep muscle. Three competitors in this table shipped before it. It paywalls "the muscle you're protecting, in pounds" while taking no body measurement at all.
  • Preserve (forresTech) opens with "up to a quarter of GLP-1 weight loss can be lean mass", then tracks no lean mass. Its training program is genuinely good.
  • Preserve (Fulltech) says "free to use, with no ads" on the same listing that sells a $59.99 subscription.
  • MeAgain promises to "help keep muscle" with no composition tracking, no training and no protein number.
  • Glapp says it was "developed with input from medical doctors", and ships no protein target and no muscle content.

"Preserve" is three unrelated apps by three different developers, and "Gila" is at least three products (the one by Sinan Yasar, mentioned in the FAQ below, is here). Check the developer name before you pay.

What is genuinely worth paying for

We are not going to pretend nothing is.

Measurement. A website cannot weigh you. If you want to know whether the weight you lost was fat or muscle, you need a real reading, and there are two honest ways to get one:

  • A DXA scan, roughly $50 to $150 in most cities, once every three to six months. The most accurate option most people can actually get.
  • A body-composition scale, roughly $40 to $100 once. Less accurate in absolute terms, useful as a trend if you weigh under the same conditions each time. Our guide on whether smart scales are accurate covers what they get right and wrong.

Bild Health is the only app that takes those readings and charts fat and lean mass as separate lines, and it has a Tufts sarcopenia researcher named as its scientific advisor. If measurement is what you want, and you would rather not do the tracking yourself, that is the one to look at. It costs $59.99 a year and cannot be used without a subscription.

A dose tracker, if you take several medicines or are chasing side effects, is worth having. Shotsy does that better than anyone, and its core features are free.

What is not worth paying for: a protein target, a training plan, or a "muscle score" calculated from numbers you typed in. Those three are on this page, free, with the formulas published and the trials cited.

What no app in this category does yet

  • None of them measures strength. Lean mass is a line on a chart; what matters is whether you can carry shopping and get out of a chair without pushing up. A grip test or a 30-second chair-stand test costs nothing and says more about function than any scale. Our guide on measuring muscle at home has the cut-offs.
  • None of them adjusts for how fast you are losing. Faster loss costs more lean mass, and no app asks.
  • None of them handles the dose-increase week. Appetite collapses for a few days after a step up, which is exactly when protein gets missed, and no app changes its targets for it.
  • None of them publishes what it does not know. Only Bild Health comes close, with a page on where the evidence is thin.
  • None of them has published outcome data. Not one app here has shown that its users keep more muscle than people using nothing. Including us, when we launch.

That last line is the honest state of this market in September 2026. Every app on this page, ours included, is built on trials of protein and resistance training in general, not on evidence that the app itself works. Anyone telling you otherwise is selling.

How we checked, and what we are selling

We are building a competing app. Dyadfit is a GLP-1 muscle-preservation app. It has not launched, so it is not scored in the tables above, and there is nothing you can buy from us today. You can join the waitlist if you want to know when it ships. That is the only thing this page asks of you, and it is optional.

What we checked, on 18 September 2026

  • Every app's own App Store listing, from Apple's public lookup API: name, developer, price tiers, rating count, release date, last update.
  • Every app's own website and feature list, in the developer's words.
  • Google Play, to confirm which apps are iPhone only.

What "no" means here. The feature is absent from everything the company publishes about its own app. That is not proof the app cannot do it.

Prices change often and App Store pricing gets tested, so treat these as a snapshot and check before you subscribe.

Corrections. If anything here is wrong, email us. We will fix it and log the change.

Frequently asked questions

Is there a free GLP-1 app?

Shotsy's core dose-tracking features are free, and Gila by Sinan Yasar is free with a one-time $9.99 upgrade. Neither tells you anything about muscle. The protein target, muscle-loss estimate, workout plan, meal plan and grocery list on this site are free with no account.

Do I need a GLP-1 app at all?

Not for the basics. A protein target, a strength plan and a rough idea of your fat and lean split are all free on this page. An app is worth paying for if you want a body scan charted over time, or if you take several medicines and want a proper dose log.

Which GLP-1 app actually measures muscle?

Of 19 apps checked in September 2026, only Bild Health measures fat and lean mass, by importing a body scan or syncing a body-composition scale. Phaze offers an AI photo estimate marked beta, and Noom uses a 10-second video. The rest track weight only.

Is Noom's Muscle Defense worth it?

Noom's program includes a video class library, food tracking and a video body estimate, for $169 to $209 a plan. It does not publish a personalised protein target, and the workouts are classes rather than a progressive program. Whether it preserves muscle better than nothing has not been published.

How much protein should a GLP-1 app be telling me to eat?

A 2025 expert consensus recommends 1.2 to 1.5 g per kg of body weight a day during weight loss, and a 2025 joint advisory offers 80 to 120 g a day as a simpler target. Our protein calculator works out your own range free, and publishes the formula it used.

The evidence

Sources

The numbers in brackets in this guide link to these.

  1. 1

    Mozaffarian D et al. Nutritional priorities to support GLP-1 therapy for obesity: a joint Advisory (ACLM, ASN, OMA, TOS). Obesity 2025.

    pmc.ncbi.nlm.nih.gov (opens in a new tab)
  2. 2

    Sievenpiper JL et al. Nutritional and lifestyle supportive care recommendations for management of obesity with GLP-1-based therapies: an expert consensus statement using a modified Delphi approach. Obesity Pillars 2025.

    pmc.ncbi.nlm.nih.gov (opens in a new tab)
  3. 3

    Meta-analysis of 36 randomised trials (5,316 participants): lean mass loss was 31% of total weight lost, 95% CI 24-39%. Diabetes Metab Res Rev, June 2026.

    pmc.ncbi.nlm.nih.gov (opens in a new tab)
  4. 4

    Mesinovic J et al. Exercise and dietary recommendations to preserve musculoskeletal health during weight loss in adults with obesity. Rev Endocr Metab Disord 2025.

    pmc.ncbi.nlm.nih.gov (opens in a new tab)
  5. 5

    App names, developers, prices, ratings and release dates: Apple App Store listings via the iTunes lookup API, checked 18 September 2026. Feature descriptions quoted from each developer's own listing or website.

    itunes.apple.com (opens in a new tab)

Dyadfit is a wellness app for nutrition and training. It does not prescribe, dose or give advice about medication, and it is not a medical device. Talk to your doctor or clinician before changing your diet, exercise or treatment. Every figure in this guide is checked against the original source. Read our editorial policy.

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