How does the live deficit work?

Live Deficit knows your resting burn (TDEE), so it adds calories to your deficit every second. When you log food it subtracts those calories; when you log a workout it adds them. The number you see is your real net deficit for today.

What is the theoretical weight?

The scale jumps around because of water and stomach content. Your theoretical weight is calculated purely from your accumulated calorie deficit (about 7,000 kcal per kg of fat), so it shows your true fat loss instead of daily noise.

Do I need an account?

No. There is no sign-up and no cloud. All your data stays locally on your device.

Yes, the core app is free. Live Deficit PRO unlocks the full goal prognosis and deeper analyses, available as a subscription or a one-time lifetime purchase.

Which platforms are supported?

Live Deficit is available for Android now, with iOS coming soon. The app is fully available in English and German.

🔥 Your deficit, counting live

Watch your fat melt away.
Every single second.

Live Deficit turns your calorie deficit into a live ticker…

Live deficit today

+0 kcal

Counting up while you read this

Tap a chip — feed or train the live counter

Free • No account • Your data stays on your device

⏱️ Deficit updates every second

🔓 No sign-up required

🔒 Your data stays on your device

🌍 English & German

🎯 Instant goal prognosis

See the exact day you hit your goal

Enter your numbers — Live Deficit shows the date you reach your goal weight.

Your daily burn (TDEE): —

Fasting

100% deficit

—

Fast

30% deficit

—

Moderate

20% deficit

—

Relaxed

10% deficit

—

Estimate from the Mifflin-St Jeor formula and ≈ 7,000 kcal per kg of fat.

Turn this prognosis into daily progress — track it live:

Everything you need to stay in deficit

Built on the science of TDEE and real fat loss…

🔥

Live deficit counter

🍽️

Daily budget

🟩

Calorie matrix

⚖️

Theoretical weight

🎯

Goal prognosis

🧮

Exact TDEE

📲

Home-screen widget

🌗

Light & dark mode

Lose weight in three steps

See it in action

Goal prognosis — Calorie matrix & goal prognosis

Pro upgrade — Unlock every prognosis with Pro

Your deficit, week after week

Every day becomes a tile — the deeper the deficit, the greener it glows.

🔥 12 day streak

Surplus Deep deficit

The scale lies. Your deficit doesn’t.

Same month, same fat loss — but water weight hides it on the scale.

Up and down every day from water and food. A steady line down, straight from your deficit.

💡

The math behind it

…

PRO

Unlock Live Deficit PRO

Frequently asked questions

Start your deficit today

Free on iOS and Android.

Watch your fat melt away.Every single second.