Local-First • No Account Needed

Your Personal Fitness Timer

Create custom interval workouts, track your progress, and achieve your fitness goals — all on your device. No account required.

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TimerFit App
Timer screen Workouts screen History screen Settings screen
#1 Fitness Timer 100% Offline No Account Required 19 Languages Privacy First

Everything you need for effective interval training

TimerFit is a local-first fitness companion built for athletes, coaches, and anyone who takes their training seriously.

Multi-Segment Interval Timer

Build complex workout sequences with unlimited timers. Choose from 11 sport types for accurate MET-based calorie tracking. Auto-advances through each segment with haptic feedback.

Two Progress Views

Switch between Circular and Linear progress views. The circular view shows your workout as a color-coded ring. The linear view displays a segmented progress bar with duration labels.

Workout Management

Create, edit, duplicate, and organize custom workouts. Add images from your gallery. Choose from 11 sport types per timer. Everything syncs automatically to your local history.

Smart History & Analytics

Every completed workout is logged with duration, calories, and your metrics at the time. Browse by date with the interactive calendar or explore the 6-month activity heatmap to spot trends.

Calorie & TDEE Calculator

MET-based calorie estimates across all sport types. TDEE calculator using the Mifflin-St Jeor equation with your personal metrics — weight, height, age, gender, and activity level.

Fully Customizable

12 background patterns, full dark mode support, 19 languages with automatic device detection. Every aspect of the app adapts to your preferences.

Unlock Advanced Features

Get the most out of your training with a premium subscription.

Body Metrics Tracking

Track weight, height, age, gender, and activity level for accurate calorie calculations.

TDEE & Weight Goals

Set targets, timelines, and track your daily calorie allowance with detailed projections.

Activity Heatmap

6-month color-coded contribution grid to visualize your training consistency.

Monthly Charts

Bar chart showing daily calories burned for the entire month.

Full History Data

See calorie details on every past workout and export your history as JSON.

Unlimited Workouts

Create as many custom workouts as you need — no caps, no limits.

Start your training today

Available now on the App Store. Coming soon to Google Play.

App Store Available Now Google Play Coming Soon