A home workout app against a food tracker. They do opposite halves of the same job, and the honest answer is that neither replaces the other.
Lose Weight at Home in 30 Days
4.8 from 21,514 ratings · Free
A home workout app rather than a food tracker: guided bodyweight routines you can do in a living room with no equipment, organised into plans by duration and difficulty. It shows up in weight-loss searches, which is why it is on this list, but it does not track what you eat.
KalTrack Made by Viral Labs
5.0 from 1 rating · Free
A camera-first tracker. Point at the plate for an AI estimate you confirm in two taps, or scan a barcode or nutrition label to get exact published figures instead. Built around the idea that a photo estimate is an estimate, with cuisine coverage beyond American food databases. New, and small.
Side by side
App Store figures retrieved 2026-08-27 from Apple's public lookup API, US storefront.
Lose Weight at Home in 30 Days
KalTrack Made by Viral Labs
App Store rating
4.8 from 21,514 ratings
5.0 from 1 rating
How you log a meal
Not a food tracker; it does not log meals
Photo of the plate, barcode, nutrition label, or a typed description
Food data
None for food; exercise routines instead
AI estimate from the photo, plus Open Food Facts for barcodes and OCR for printed labels
Free tier
Yes, with workout plans
A few AI scans every day; barcode lookups unlimited and free
Paid plan
Subscription for additional plans, priced on the App Store listing
KalTrack Pro, $9.99/month or $29.99/year, 7-day free trial, cancel in iOS Settings
Platforms
iPhone, Android
iPhone. Android in development, no date promised
Offline diary
Workouts play offline
Yes, diary is on-device and syncs later; scanning needs a connection
Apple Health
Writes workouts to Health
Optional: reads steps and active energy, can write logged food back
Which one to pick
Choose Lose Weight at Home in 30 Days if
you need the exercise half solved: a structured routine you will actually do at home with no equipment and no gym membership. That is a real need and this app addresses it.
Choose KalTrack if
you need the food half solved. Nothing in a workout app tells you what you ate.
The verdict
These two are not alternatives, and anyone presenting them as a head-to-head is selling something. A home workout app and a calorie tracker do opposite halves of the same job.
Worth being blunt about the arithmetic, though, because it decides how you should spend your effort. Exercise is a comparatively small and unreliable lever on weight compared with intake — a hard thirty-minute bodyweight session might burn 250 kcal, roughly one large latte and a biscuit. That is not an argument against training, which is good for a long list of reasons that have nothing to do with the scale. It is an argument against treating a workout app as a weight-loss plan on its own.
So if you are choosing where to put your attention first, and the goal is specifically weight, the food side is where the leverage is. That is the case for a tracker of some kind — KalTrack, or any of the others compared on this site.
The sensible answer for most people is both, in that order of priority: track what you eat, and train because it makes you healthier and stronger.
Method: figures come from each app's public App Store listing on the day this page was built, and from each app's own published pricing. Features were checked against the apps' own descriptions. We make KalTrack, so treat this as our account of the difference, not a review.