Now live on the App Store

Fast Track Pro

A precise fasting timer that explains the window you are in, keeps your routine visible on every Apple device, and leaves billing safely with Apple.

Download on the App Store Explore the app

Available now. Start a 7-day free trial from the App Store, with subscriptions and purchases managed by Apple.

Apple-first iPhone, Apple Watch, iPad, widgets, Live Activities, local export, and Apple Health.
StoreKit 2 Purchases and restores are handled by Apple.
Data Not Collected No ad tracking, no analytics, no third-party purchase SDK.
Health aware Apple Health permissions stay explicit and optional.
Live on the App Store Install Fast Track Pro directly from Apple.

Product

A fasting app that feels calm under pressure.

The experience is built around the moment a user checks the timer: what stage am I in, how long is left, and what should I do next?

Timer

Start fasts without setup friction

Preset protocols cover common windows like 16:8, 18:6, 20:4, and OMAD, with custom schedules for people who already know their routine.

Guidance

Educational stage estimates

Fasting stages are shown as estimates, not medical claims. The app helps users understand the window without pretending to diagnose anything.

Continuity

Visible across Apple devices

Configurable widgets, Watch support, richer Live Activities, Shortcuts, local export, and optional private iCloud backup keep the fast easy to check and keep in sync.

See it in motion

Your whole fast, in 17 seconds.

From the first tap to your streak, watch how Fast Track Pro keeps every fast clear and effortless across iPhone, Apple Watch, and widgets.

Start your 7-day free trial

Fasting stages

Show the journey, not just the countdown.

Users see where they are in the fasting window with plain-language stage labels and a clear medical disclaimer in the app and policies.

Fed state

Food is still being digested and absorbed.

Transition

Your body may begin shifting toward stored energy.

Fat-use window

The body may increasingly lean on stored energy.

Ketone window

Ketone production may become more noticeable.

Deep fast

Longer fasts can feel physically and mentally different.

Extended fast

Advanced windows require extra care and medical judgment.

Built-in habits

Small tools that make fasting easier to repeat.

01

Hydration tracking

Quick water logging and reminders help users stay attentive during longer windows.

02

Progress history

Calendar views, streaks, and charts make the routine visible over time.

03

Health integration

Optional Apple Health sync keeps weight and body-measurement trends connected.

04

Siri shortcuts

Start, stop, pause, resume, and check fasts with Shortcuts and App Intents.

Pricing

Try free for 7 days. Apple handles every purchase.

Fast Track Pro is a premium app. Start with a 7-day free trial with full access to everything, then continue with a subscription or own it for life with a one-time purchase. Prices load from the App Store in the app, and you can cancel anytime.

7-Day Trial

Free

Full access, no charge for 7 days.

  • Every feature unlocked during the trial
  • Cancel anytime before it ends — no charge
  • Renews into your chosen plan afterward

Monthly

$4.99

Flexible premium access.

  • 7-day free trial, then $4.99/month
  • Advanced stats and weekly insights
  • Custom protocols, photos, export, and Health sync

Yearly

$24.99

Best value for people building a long-term habit.

  • 7-day introductory offer
  • All premium features
  • Apple subscription management

Lifetime

$49.99

One purchase for ongoing premium access.

  • No renewal
  • Family Sharing supported
  • All premium features processed by Apple