Frontier.
The precision fasting system

Fast with precision.
Fuel at the right moment.

Frontier reads where you are in your fast and pairs it with a supplement stack timed to each window — one calm system for the eating window, the fasting window, and the recovery after.

Coming soon to theApp Store Get started for free. Start with the app. Add the stack when it fits your routine.
FrontierFasting · 16:42
Deeper Zone
16h 42m elapsed
Glycogen is low. Your body is shifting toward fat for fuel.
Frontier Fast · electrolytes
Sodium, potassium, and magnesium help maintain electrolyte balance through the deeper window. No sugar, no aminos.
Add to fast
Precision app. Reads your phase, not a countdown. Timed supplements. The right input at the physiological moment. Physical storefront. Optional supplements shipped outside the app.
How it works

One system across the whole day.

Fasting apps sell software with no products. Supplement brands sell powders with no timing. Frontier connects the two — the app knows the phase, and the stack meets it.

Fasting window · sustain

Read the phase

The app surfaces where you are in your fast and, at the deeper window, brings Frontier Fast and Frontier Creatine — calorie-free and fasting-safe — to help you stay balanced and sharp.

The break · rebuild

Break it clean

When your eating window opens, Frontier Protein supports muscle protein synthesis — an earned, clean close to the fast.

The instrument · precision

State, not a countdown

Frontier reads where you are — your phase, your progress, your routine — so the whole day stays on track without guessing, and without shame.

The stack

Timed to the fast.

Each product maps to a moment in your fast, not a flavor aisle. The stack includes hydration, creatine, and protein support for the full fasting rhythm.

Frontier supplement stack product lineup
Frontier Fast product tub

Frontier Fast

Electrolytes

Helps maintain electrolyte balance through the deeper fasting window. No sugar, no aminos.

Frontier Creatine product tub

Frontier Creatine

Micronized creatine

Fasted-state focus and performance. Calorie-free — it won't break your fast.

Frontier Protein product tub

Frontier Protein

Protein isolate

Supports muscle protein synthesis — a clean way to break the fast.

The app

Free fasting tools. Physical supplements when useful.

Frontier brings the fasting timer, stage context, history, and supplement stack into one clear routine.

Free app
$0 / forever
  • Multi-protocol timer — 16:8, 18:6, OMAD, custom
  • Streaks and unlimited history
  • Live fasting-stage indicator
  • Account, consent, privacy, and deletion controls
Get started for free.
Physical supplement storefront
3 core products
Built around the fasting rhythm —
  • Frontier Fast for electrolyte balance
  • Frontier Creatine for fasted-state focus and performance
  • Frontier Protein for the eating window
Hydration, creatine, and protein support for the full fasting rhythm.