Build smarter interval workouts. Run cleaner, sharper sessions.

Ntrval Timer combines timer building, workout planning, workout calendars, and branded display tools — for personal training, group fitness, and multi-location studios.

Web App iOS App · Coming Soon
Ntrval Timer running an interval session on a full-screen display, showing Round 1 of 8, a Work phase, and a large countdown.

Everything in one place

One app for building, planning, and running workouts

From a single interval timer to programming across every location — Ntrval Timer scales with how you train and how you run your business.

Timer Builder

Create custom interval timers with work, rest, rounds, transitions, warmups, and finishers. Save reusable timers for every workout format.

Workout Builder

Plan full workouts with movements, stations, and circuits — then connect a timer so the session timing matches your structure exactly.

Workout Calendar

Program ahead by day, week, or month. Perfect for personal goals, studio programming, and coordinating your whole team.

Enterprise Feature

Display Board

Enterprise display tools that turn any screen or TV into a branded board for on-brand idle screens, announcements, promotions, and studio messaging.

Coming Soon

iOS App

Build, manage, and run timers from the iOS app, in sync with the web app across the devices you train with.

Coming Soon

Exercise Library

Reference movements, organize exercises by category and equipment, and build workouts faster than ever.

Workout Builder

Plan the session, then run it without missing a beat

Plan AMRAP, EMOM, elimination, and more. Build the workout, connect the timer, and run the session without missing a beat. Coaches get a clean plan; the room gets perfectly synced timing.

  • Movements, stations, circuits, warmups, and finishers
  • Connect any workout to a matching timer
  • Formats like AMRAP, EMOM, Elimination, and more
  • Save your builds as reusable brand templates
The Ntrval workout builder for a workout named Tornado, with style, focus, format, and pairing pattern options plus a linked timer.
The Ntrval workout calendar showing a June month view with scheduled timers and workouts and a Today detail card.

Workout Calendar

Program ahead and keep every location on schedule

Organize upcoming sessions by day, week, or month. Build out a week of programming for yourself, your studio, or your entire team.

  • Day, week, month, and agenda views
  • Schedule both timers and full workouts
  • Ideal for personal, studio, and team planning
  • See today's session at a glance

Display Board

Enterprise Feature

Turn any screen into a workout command center

When a timer is running, the room sees exactly where they are in the workout via Apple TV mirroring and Google Cast. When it isn't, the same screen becomes a branded board for your gym — no extra hardware required.

Apple TV mirroring & Google Cast

Send big, legible timing — countdowns, round counters, and phase colors — to any screen via Apple TV mirroring and Google Cast.

Idle-screen announcements

Between sessions, show class schedules, promotions, and member shout-outs.

On-brand displays

Match your studio's colors and identity so every screen reinforces your brand.

A full-screen Ntrval display showing Round 1 of 8, a red Work phase, a large 00:17 countdown, an Up Next chip, and transport controls.

Plans

Plans for every way you train

Ntrval grows with you — from personal timers to workout building, display boards, and multi-location support. Here is what we are planning as the app evolves.

Ntrval is free while in early access. There are no in-app purchases or subscriptions today — the plans below are planned for a future release.

Basic

For individuals who want clean, reliable timer tools.

Coming soon
  • Unlimited custom timers
  • Personal workout calendar
  • Timer builder
  • Stopwatch and alarm tools
  • Web access
Most popular

Advanced

For coaches and trainers who build full workout sessions.

Coming soon
  • Everything in Basic
  • Workout builder
  • Station-based workout planning
  • Warm-up and finisher planning
  • Saved workout templates

Business

For gyms and studios running classes across a location.

Coming soon
  • Everything in Advanced
  • Display board access
  • Branded screens
  • Location workspace and staff access
  • Shared workout programming

Enterprise

For franchises and organizations with multiple locations.

Coming soon
  • Everything in Business
  • Centralized organization management
  • Bulk and multi-location management
  • Org-wide reporting and visibility
  • Custom onboarding and support

Pricing is not final and plans are not yet available for purchase. Waitlist members will hear from us before anything launches.

The Ntrval Timer home screen on a phone, listing saved timers with colored interval bars and start buttons.

Your whole timer library, in your pocket

Every timer you build is saved and ready to run instantly. Start a session from your phone, send it to the gym TV with Apple TV mirroring or Google Cast, and keep the room moving — all from one app.

Build your first timer in minutes

Join trainers and studios running cleaner, sharper, better-timed sessions with Ntrval Timer — free while in early access.

Free during early access · No purchase required