klyo vs MyFitnessPal: Which Is Better for Weight Gain?

People keep asking whether MyFitnessPal for weight gain is a good idea - and the honest answer is: it can work, but you’ll be swimming against the current. MyFitnessPal is one of the best diet apps ever made. The key word is diet.

This is a fair comparison, not a takedown. MFP earned its reputation. But the app you bulk with should be built around surplus, and that changes more than you’d think - the defaults, the colours, the messaging, even what counts as a “good day.” Below: what MFP does brilliantly, where it quietly works against a gainer, and an honest answer for which app fits which person.

What MyFitnessPal gets right

Start with the obvious: the database. MyFitnessPal has the largest food catalogue of any tracker, covering branded products, restaurant chains, and user recipes. If you can buy it, someone has probably logged it. For a bulker, that depth has real value - logging accuracy matters just as much in surplus as in deficit, because a surplus you only think you’re eating is the most common reason the scale refuses to move.

It’s also mature software. The logging flows are refined, integrations cover most fitness trackers, and the free tier still does the basics well - though barcode scanning now sits behind the paid Premium layer. For weight loss, the goal the whole product was forged around, it’s genuinely excellent.

The ecosystem matters too: recipes, forums, years of community knowledge, and the simple fact that your gym partner probably already uses it. None of that should be waved away - familiarity is a real feature, because the tracker you understand is the tracker you keep using.

The problem: every default points down

Open MFP as a gainer and you’ll feel it within a day. The home screen celebrates “calories remaining” - eating less than your goal looks like winning. Go over, and the numbers turn red.

Setting a gain goal helps a little - the target rises - but the product’s reflexes stay the same. The hierarchy of screens, the language of “remaining,” the gentle alarm of overshooting: all of it was tuned over a decade for people moving in the other direction.

None of this is a bug. It’s deliberate, well-executed design for a deficit. But psychology cuts both ways:

• Under-eating reads as success. For a hard gainer, finishing the day 600 calories short is the failure mode - MFP’s interface quietly applauds it.
• Going over triggers warning colours. On a bulk, beating your target is the whole point.
• No help when you’re behind. MFP records the gap; it doesn’t help you close it.
• Streaks reward logging, not eating. You can hold a 30-day streak while under-eating every single day of it.

There’s a deeper issue underneath the colours: whatever your tracker celebrates is what you slowly start optimising for. Spend three months being congratulated for “calories remaining” and a quiet part of your brain starts protecting that number - the exact opposite of what a hard gainer needs to practise.

What klyo does differently

klyo was built for the opposite user: someone whose problem is eating enough. Your target comes from the Mifflin-St Jeor formula with your gain goal baked in, and the entire interface treats “more” as the goal - there are no red warnings for going over.

The features follow from that. When you’re behind, “Top Up” suggestions tell you exactly what to eat to close the gap. Quick Wins ranks snacks by calorie density for the moments you need 400 calories in two minutes. The AI coach reads your actual logging data and nudges you to eat more, not less. And logging is a photo of your plate or a typed sentence - low friction matters most on the days your appetite already quit.

If your real issue is that meals simply fall out of your day, that’s a system problem more than a willpower problem - we wrote about it in what to do when you forget to eat.

The same Tuesday, in both apps

Picture a normal Tuesday: breakfast disappeared into a meeting blur and it’s now 16:00. In MyFitnessPal, the app is calm - you have 1,900 calories remaining, the dashboard looks healthy, all is technically well. The app has no idea this is a crisis.

In klyo, 16:00 with 1,900 calories to go is exactly the moment it was built for: a Top Up suggestion lands with a specific fix, sized to the gap - because closing it now takes a shake and a snack, while closing it at 21:00 takes a feast you won’t finish.

When MyFitnessPal is the right choice

• You’re cutting, or alternating cuts and bulks. Deficit is MFP’s home turf, and it’s superb there.
• You’re on Android. klyo is currently iOS only - MFP runs everywhere.
• Your diet is mostly packaged and restaurant food. The database depth genuinely helps.
• You already have years of history in it and the switching cost outweighs the friction.

If several of those describe you, use MyFitnessPal with pride - just flip the mental model. Treat “calories remaining” as a debt to clear before midnight, not an achievement to protect, and set the goal with a proper surplus instead of the default.

When klyo is the right choice

• You consistently end the day under target and need a push, not a report.
• You forget meals when work gets loud.
• Logging friction kills your tracking - photo and sentence logging take seconds.
• You want coaching pointed at gaining - eat-more nudges instead of restraint mechanics.

klyo’s free tier covers your calorie target, manual logging, Quick Wins, and a limited coach; Pro is $59.99 a year with a 7-day free trial, or $9.99 a month.

One more practical note: you don’t have to marry either app. Plenty of people cut with MyFitnessPal in the spring and gain with klyo the rest of the year - the tracking skills transfer, and the food knowledge you build in one makes you faster in the other.

The bottom line

MyFitnessPal is a great app pointed at a different goal. You can gain weight with it the way you can drive a nail with a wrench - it works, but every part of the tool is fighting the job. If you’re genuinely torn, run a one-week test in each and count which ends with more days on target. Tools should win on results, not marketing - ours included.

Whichever app you choose, get the inputs right first: work out how many calories you need to bulk (a ~250-500 calorie surplus covers most people) and keep protein around 1.6-2.2g per kg of bodyweight. Then stock the right ammunition - our high-calorie snacks list makes closing the daily gap a two-minute job instead of a willpower test.