Metrify vs MyFitnessPal: an honest comparison

Two designs, fifteen years apart

MyFitnessPal is the incumbent, and it earned that position. It has the deepest branded-food catalog in the category, built over more than fifteen years of user contributions, and an ecosystem to match.

It is also a product designed around a search box. The core interaction, type a food name, scroll results, pick an entry, set a serving, set a quantity, confirm, has barely changed since it launched. Everything since has been layered on top of that loop rather than replacing it.

Metrify starts from a different premise: that the database was never the hard part. The hard part is that logging is tedious enough that most people quit. So the interaction is a sentence, the math is deterministic, and the data stays on your phone.

Logging a meal, step by step

Take a normal dinner: chicken breast, rice, broccoli, and a diet coke.

In a search-box tracker that is four separate passes through the same loop. Open the app, choose the meal, type the food, scroll the results, pick the entry that looks closest, set the serving unit, set the quantity, confirm. Then do it again. And again. Several dozen taps and a couple of minutes of your evening, every evening.

In Metrify it is one sentence. "Chicken breast, rice, broccoli, and a diet coke" logs all four items from a single message, and you get one card showing exactly what it understood, with calories and macros, to accept or adjust.

The gap widens on the meals that are actually annoying, which is most of them:

• "Same lunch as yesterday" pulls your previous entry instead of making you rebuild it from scratch.
• "Actually make that two eggs, not three" edits the row the assistant just wrote, rather than leaving you to delete it and start over.
• A photo of your plate plus "the rice was about 300g" uses the picture for the rest of the meal and your typed number for the rice, without logging the rice twice.
• "How much protein do I have left today?" is answered from your real logged data.
• "Log 3x8 bench at 185" goes into the same conversation as your dinner.

MyFitnessPal added voice logging to its Premium tiers, which removes the typing. What matters in Metrify is not the input method but that the assistant acts on your log directly: writing several entries at once, editing what it already wrote, and reading your own history back when you ask.

We have not tested what MyFitnessPal's AI features can do at that level, so we are not going to claim they cannot. What we will say is that the five behaviours above are worth trying yourself during a trial of any app in this category, ours included. They take two minutes to check and they are where these products actually diverge.

This matters more than it sounds like it should. Calorie tracking only works if you keep doing it, and people quit because logging is tedious, not because they stopped caring about the goal. A smaller catalog you use every day beats a larger one you abandon in week three. Adherence is the whole game, and it is decided by friction.

Your exercise should count once

MyFitnessPal uses a net calorie model. Their support documentation is explicit:

When you log exercise, your daily calorie goal will increase for the day, to stabilize your weight loss or weight gain at the rate you initially specified.

They describe it as a budget: you earn more calories to eat by exercising. It is a deliberate, documented design and it can be switched off in settings.

It also creates a trap that catches an enormous number of people. If you chose an activity level at setup that already accounts for your four gym sessions a week, and then log those gym sessions, the same calories land in your allowance twice. Nothing warns you. The app shows you hitting target every day while your actual deficit is a fraction of the number on screen, and the scale does not move. Most people conclude their metabolism is broken. The arithmetic just ran twice.

There is a second problem even when the activity level is set correctly. Exercise burn estimates are among the least reliable numbers in fitness tracking. Treating an estimate that can be off by several hundred calories as spendable budget converts measurement error directly into overeating.

Metrify's baseline is sedentary by construction, using Mifflin-St Jeor multiplied by 1.2, and there is no activity level question to get wrong. Logged exercise is counted exactly once, on the burn side. Your goal does not move. The deficit you see is the deficit you have, and your weight trend and projection inherit that accuracy. Full breakdown in why your workout should count once.

Where your data lives

Every food log, weigh-in, workout, and goal in Metrify is stored locally on your device. Delete the app and the data is gone, because it was never anywhere else. We could not sell your logs if we wanted to, and we do not have them.

MyFitnessPal runs on a standard cloud account model, storing your history on their servers. That buys you real things: web access, and a history that survives a lost phone and follows you to a new device. It is a genuine trade, and if multi-device access matters more to you than local storage, it is a reason to prefer them.

Price

MyFitnessPal Premium is $79.99 billed yearly. Premium+ is $99.99 annually, or $24.99 a month. Metrify Premium is $69.99 a year or $9.99 a month, so it undercuts Premium by $10 a year and Premium+ by $30.

Metrify's free tier also does more than most: unlimited manual food, weight, and workout logging, the full Workout Lab, full progress charts and history, health sync, and exactly the same on-device privacy Premium gets. The AI is the paid part. The tracker is not.

Comparison table

What MyFitnessPal does better

Their branded-food and barcode catalog is deeper than ours and will be for a long time. They offer recipe import, meal planning, and automated grocery lists that Metrify does not have at all. And they have a web app, where Metrify is phone only, which is a direct consequence of keeping your data on the phone.

Who should use which

Choose Metrify if you want logging to take ten seconds instead of two minutes, if you want your health data on your own device, if you want a calorie goal that reflects your real deficit, or if you would rather pay $69.99 than $99.99.

Choose MyFitnessPal if you need meal planning and grocery lists, if you log from a desktop browser, or if you scan obscure regional brands often enough that catalog depth outweighs everything else.