Calories in · Calories out · Net

Calories made simple. See the trend, not just the day.

CaloriesIO shows your calories in, calories out and net, and whether you are ahead or behind this week. Have a bigger day, balance it with a lighter one. It's the trend that counts.

Download links will appear here when the apps are published.

Simple by design

Just the numbers that matter: calories in, calories out and net. Carefully curated, glanceable information when you need it.

Flexible by nature

Eat in a way that suits you and move how you want. Flex calories in and out from day to day. It's the weekly trend that counts.

Net is the key

Calories in minus calories out is what drives your weight. See it by day, week, month or year, and know if you are ahead or behind.

Works wherever you are

On your phone, your tablet or your watch, so the numbers are always close at hand.

Everything you need, nothing you don't

A calm, quick-to-read dashboard for people who already track their food and activity somewhere else.

Three rings, one glance

Calories in, out and net for the day, each against your own target.

This week: ahead or behind

Adds up how far each day since Monday is from your daily target, so one bad day doesn't hide the bigger picture.

Any period you like

Switch between day, week, month, 3 months, 6 months and a year, with averages that make trends easy to see.

Today's projection

An optional estimate of how today will finish, based on your average resting calories from recent days.

Workouts

See how your sessions contribute to what you burn.

Progress

Weight and body fat over time, how much you have lost in the period, and how far you have to go to your goal.

The CaloriesIO Summary screen on an iPhone: three rings for calories in, out and net, their targets, and a gold card saying this week you are ahead.

See it in action

The Summary screen shows your day, week or year on one screen, with no scrolling.

  • Calories in against your daily target.
  • Calories out, resting and active together.
  • Net, your deficit or surplus, against its target.
  • This week, how far ahead or behind you are since Monday.

Screenshot from an iPhone with sample data.

Calories, workouts and progress

Go deeper whenever you like. Every screen uses the same day, week, month and year buttons.

The CaloriesIO Calories screen: today's calories in, out and net as cards and a bar chart with target lines.
CaloriesIn, out and net as charts, with your targets drawn on them.
The CaloriesIO Workouts screen: workout types for the month with average duration and calories burned.
WorkoutsYour sessions, ranked by calories burned or by efficiency.
The CaloriesIO Progress screen: weight over time with a projected line to the goal date.
ProgressWeight and body fat over time, and how far you have to go.

Screenshots from an iPhone with sample data.

Made for iPad too

On a tablet the navigation moves to the top and the numbers get room to breathe.

CaloriesIO Summary on an iPad: three rings and a list of calories in, out and deficit.
Summary
CaloriesIO Calories on an iPad: weekly bars for calories out with a target line and a daily list.
Calories
CaloriesIO Workouts on an iPad: workouts ranked by efficiency.
Workouts
CaloriesIO Progress on an iPad: body fat over time with a projection to the target.
Progress

Screenshots from an iPad with sample data.

How it works

CaloriesIO doesn't ask you to log meals again. It reads what your existing apps and devices have already recorded.

Connect your health data

Allow access to Apple Health on iPhone or Health Connect on Android. You choose what to share.

Set your targets

Enter your daily calorie targets and, if you like, a goal weight and date.

See where you stand

Open the app, glance at your watch or add a widget to your home screen.

On your wrist and home screen

An Apple Watch app and a Wear OS app show your rings and whether you are ahead or behind, and widgets put the numbers on your home screen. Your phone and watch share data directly with each other, on your own devices.

Questions

Does CaloriesIO log my food?

No. It reads food and activity data from Apple Health or Health Connect, which most calorie counters, fitness trackers and watches can write to. Keep using the food app you like; CaloriesIO shows the bigger picture.

Where is my data stored?

On your devices. We don't have accounts and we don't receive your health data. Read the privacy policy for the details.

Which devices does it work on?

iPhone with Apple Watch, and Android phones with Wear OS watches.

Is it medical advice?

No. CaloriesIO is an information tool and does not give medical advice. Talk to a doctor or registered dietitian before making big changes to your diet or exercise.

How do I get in touch?

Email support@caloriesio.app.