Circuit Train vs Ntrval Timer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Circuit Train
This app helps you manage circuit training workouts by timing exercises and rest periods. It allows full customization of workout structure and integrates with your music library to keep you motivated.
- Customizable station and circuit lengths
- Automated alerts for exercise and rest periods
- Music playlist integration
- Focus on workout quality over timing
- Supports various circuit training types
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If you enjoy doing any type of circuit training workout whether it be weight lifting, yoga, or something else – Circuit Train is perfect for you. Instead of monitoring a stopwatch the entire workout – focus on the quality of your workout and let this app alert and aid your progress while powering through it. Circuit training involves selecting ten or so exercises (push-ups, bicep curls, mountain climbers, etc.) and doing them in succession for a set period such as a minute, and then quickly moving onto the next exercise. After the full circuit, its time to rest up, and do the whole thing again a set number of times! Circuit Train allows you to define these amount of times, stations, and circuits. Fully customizable – choose your station lengths, amount of stations, breaks, etc. Also utilizes a customized playlist via the iTunes music you have on your device. By default – the music will move to the next track whenever the time is up for a break or to get moving again. This allows you to focus on the workout rather than watching a clock or stopwatch.
Ntrval Timer
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Ntrval is an interval timer built for how people actually train — fast to set up, clear to read across the room, and flexible enough for everything from a quick Tabata to a full coached session. Design a timer in seconds: set your work and rest intervals, rounds, colors, and sound cues, then hit start. Or build a complete workout from your own exercises and let Ntrval generate the timing for you. CUSTOM INTERVAL TIMERS • Work and rest intervals, rounds, and structure your way • Per-interval names, colors, and sound cues • A big, glanceable display you can read mid-set • Countdown beeps, transition cues, and vibration WORKOUT BUILDER • Build sessions from stations and exercises • Warm-ups and finishers • Timing generated automatically from your workout • Save workouts as reusable templates EXERCISE LIBRARY • Keep your movements, equipment, and notes in one place • Attach video links for form reference PLAN YOUR WEEK • Schedule timers and workouts on a calendar • Keep your training organized from anywhere RUN IT ON THE BIG SCREEN • A clean, full-screen TV display mode — AirPlay or screen-mirror to a TV for gyms, studios, and group classes ALSO INCLUDED • Stopwatch and alarms • Works offline — your timer runs even without a connection • No ads. No tracking. Whether you train at home, coach clients, or program classes for a studio, Ntrval keeps the timer out of your way so you can focus on the work. — PLANS Ntrval is free for core interval timers, stopwatch, and alarms. Optional annual subscriptions unlock more: • Basic — $19.99/year: the training calendar • Pro — $39.99/year: the workout builder, exercise library, templates, and sharing • Business — $79.99/year: everything in Pro, plus the commercial Display Board for gym TVs Subscriptions are auto-renewable. Payment is charged to your Apple Account at confirmation of purchase. Your subscription renews automatically unless auto-renew is turned off at least 24 hours before the end of the current period, and your account is charged for renewal within 24 hours prior to the end of the period. You can manage or cancel in your Apple Account settings after purchase. Terms of Service: https://www.ntrvaltimer.com/terms Privacy Policy: https://www.ntrvaltimer.com/privacy
Screenshots
Verdict
The clearest difference is update cadence: Ntrval Timer at every 3 weeks against Circuit Train's every 5 months. Circuit Train's advantage is iOS requirement (8.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Circuit Train ships an update every 5 months, Ntrval Timer every 3 weeks. The most recent releases landed on October 6, 2026 and October 5, 2026 respectively.
| Parameter | Circuit Train | Ntrval Timer |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 5 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 8.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 1 MB | 16 MB |
| Age rating | 4+ | 4+ |
| Developer | Sean Samocki | Blake Garcia |
In-app purchases
Circuit Train
No in-app purchases
Ntrval Timer
No in-app purchases
Questions
Is Circuit Train free?
Is Ntrval Timer free?
Do Circuit Train or Ntrval Timer have ads?
Which is updated more often, Circuit Train or Ntrval Timer?
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