Reserve · Metabolic HUD

See how close the next pound is.

Every weight app shows you a number. RESERVE shows you your position — your exact distance to the next pound down, so the finish line is always in view. A living orb tracks your metabolism; the ring around it is the pound you're on, draining in real time as you close the gap.

Download on the App Store
Free. No account. No ads.
No subscription required.
RESERVE home screen: the glowing orb showing 1,949 kcal in reserve, burning fat
The whole idea

Always know how close the next pound is.

Every other app hands you a number and walks away. RESERVE shows you your position — the exact gap between you and the next pound, closing in real time.

  • A finish line, not a scoreboard. "2,540 kcal to the next pound down — about 3 days at your pace" gets you off the couch. "You weigh 184" never did.
  • The ring is the pound you're on. Around the orb, a ring of light drains as you burn fat. You literally watch the gap close.
  • Both directions, honestly. Losing, you see how far to the next pound off. Gaining, you see how much a walk banks before it sticks.
RESERVE showing distance to the next pound — the reserve ring draining as fat burns
The Orb

One glance. Whole metabolism.

Under the glass is your actual biology: the energy you've eaten, the energy you've burned, and the state your body is in right now.

  • Fuel states, live. Watch yourself move from FED into BURNING FAT — the orb changes as your body does.
  • Your real daily burn. Not a generic formula — RESERVE measures how your body actually spends energy, week after week.
  • Everything counts. Meals, water, walks, coffee, sleep, macros, supplements — logged in seconds, reflected instantly.
  • It learns you. Your staples, your patterns, your rhythm. The longer you use it, the more it speaks your language.
RESERVE history: honest weight trend and energy charts
Honest by design
The kindest health app you've ever met. No shame, ever.

RESERVE never scolds, never nags, never punishes a weigh-in. When the scale goes up, it stays respectfully silent — because water masks change, and you deserve an app that knows the difference. It celebrates what's real and says nothing about the noise.

Six modes

A companion for every chapter.

Bodies have seasons. RESERVE reshapes itself around your goal — including two care modes that hide weight and calorie counting entirely.

RESERVE pregnancy mode: the baby orb at week 27

🔥 Cut

Spend your reserve. Boss-fight weigh-ins, golden pounds, a gauge that burns toward every win.

⚖️ Maintain

Hold the line with calm. Quiet coins for steady days — no drama, just consistency made visible.

💪 Bulk

Fuel the build. Surplus tracking and protein focus, framed as growth — never guilt.

🧱 Recomp

Change shape, not weight. The scale holding steady is the victory here, and RESERVE knows it.

🌿 Rehab CARE

Recovering, healing, or rebuilding your relationship with food. No weight. No budgets. Just gentle nourishment.

🤰 Pregnancy CARE

A full companion: your baby's growth week by week, nutrients, appointments, and zero diet pressure.

Everywhere

Log it before the app even opens.

The fastest food log on iPhone — because most of the time you don't need the app at all.

🗣️

Siri

"Log a meal in Reserve." Done. Ask "how's my reserve?" and it answers from your live data.

🏠

Widgets

Interactive Home Screen buttons log water and walks without launching anything.

🎛️

Control Center

One swipe, one tap. Water logged. Works from the Action button too.

⌚️

Apple Watch

Quick-log from your wrist and glance at your fuel state mid-walk.

Yours

Make it yours.

Earn living themes as you go — a synthwave cyberpunk city, a 1980s CRT, a soft pink calm. Every one rebuilds the entire app around your orb, with its own motion, sound, and signature effects.

  • Unlocked, not bought. Themes are trophies. You earn them by showing up.
  • Built for everyone. Full VoiceOver, charts you can hear (Audio Graphs), Dynamic Type — and six languages.
RESERVE cyberpunk synthwave theme with purple neon orb
Private by architecture

Your body's data belongs to you.

RESERVE has no server, no account system, and no ads. Your food log, your weight, your journey — all of it lives on your phone and nowhere else.

0 accounts 0 ads 0 trackers 0 data sold — ever
See your fuel · Spend your reserve

Meet your metabolism.

Free on the App Store. Thirty seconds to your first glance.

Download on the App Store