Intervals One vs HIIT Timer Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Intervals One
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Intervals One – Your Interval Training Coach The interval timer designed for real workouts. Crystal-clear voice guidance, effortless setup, and intelligent features that adapt to how you train. No clutter. No complexity. Just smart interval training that helps you build better workouts and stay focused. TWO MODES. INFINITE POSSIBILITIES. Simple Mode: Perfect for quick sessions. Set your timing for all exercises at once, hit start, and let the voice guidance coach you through every phase. Ideal for consistent HIIT, Tabata, circuits, or bodyweight training. Premium users can customize each exercise stage with specific movements, reps, and effort levels. Advanced Mode: Complete control. Customize every exercise with individual timings per round, choose specific movements from our exercise library, set rep targets or effort levels, and build structured training programs that match your goals. WHY ATHLETES CHOOSE INTERVALS ONE Clear Voice Coaching: Professional voiceovers - announce every phase, exercise, and transition. Train eyes-free with clear, motivating guidance that keeps you in the zone. Intuitive Design: Create workouts in seconds with our distraction-free interface. No complicated builders or endless menus - just fast, focused setup that gets you moving. Works Everywhere: Train offline, indoors, or outdoors. No internet required once downloaded. Works perfectly with AirPods, speakers, or silent mode with haptics. PERFECT FOR - HIIT & Tabata intervals - AMRAP (As Many Reps As Possible) - Circuit training - Bodyweight workouts - Strength & conditioning - Cardio intervals - Functional fitness - CrossFit-style training SMART COACHING FEATURES - Next exercise cues so you're always prepared - Halfway alerts to pace yourself - Round completion announcements - Customizable countdown timers - Haptic feedback for silent training - Adjustable audio cues - Round recovery periods PRIVACY FIRST Your workout data stays yours. No account required. Optional iCloud sync keeps your workouts and history private and secure across your devices. START FREE Get unlimited basic interval workouts with full timing customization and premium voice guidance - completely free. Upgrade to Premium when you're ready for exercise selection, rep tracking, and advanced per-round customization. Download Intervals One and experience smarter interval training today. Privacy Policy: https://www.ninetysixsoftware.co.uk/hiit-privacy-policy/ Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
HIIT Timer Pro
This app provides a precision timer for high-intensity interval training, offering customizable workout parameters and clear visual cues. It supports background playback, haptic feedback, and auto-saves workout history with detailed statistics.
- Customizable work, rest, and round intervals
- Giant countdown screen and progress ring
- Studio-grade sound packs with adjustable volume
- Background playback and optional haptic feedback
- One-tap controls for pause, skip, stop, and mute
- Auto-save workout history and performance stats
- Offline-first design for training anywhere
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THE ULTIMATE HIGH-INTENSITY INTERVAL COMPANION –––––––––––––––––––––––––– HIIT Timer Pro turns your iPhone or iPad into a precision coach for every high-intensity workout—from explosive Tabata sprints to marathon EMOM circuits. No gimmicks, no distractions: just a rock-solid timer engineered for athletes who demand more. –––––––––––––––––––––––––– WHY ATHLETES CHOOSE HIIT TIMER PRO • Seconds-fast setup: choose a quick preset or dial in work (15 s–3 min), rest (5 s–90 s), 1–20 exercises, 1–10 rounds and recovery between rounds. • Giant countdown screen plus circular progress ring, mini bars and total-time ticker keep you locked in at a glance—even mid-burpee. • Three studio-grade sound packs: five-second countdown, dong-plus-ticks during work and victory chime at the end—loud enough to punch through your playlists and fully adjustable. • Background playback that never pauses when you switch apps, film your form or stream coaching videos. • Optional haptic feedback—light for taps, medium for transitions—so you feel every changeover. • One-tap controls: pause, skip, stop or mute on the fly. • Auto-save history with date, config, total duration, completion status and performance percentage. • Beautiful stats dashboard totals sessions, finish rate and lifetime training time in minutes or hours. • Twenty FREE SESSIONS before you even see a paywall—upgrade anytime for unlimited workouts, full history, cloud sync and an ad-free experience. –––––––––––––––––––––––––– BUILT FOR SERIOUS TRAINING • No hidden costs: choose a monthly pass or save with a yearly plan that starts with a 7-day free trial. • Swift-native architecture, 60 fps animations and memory-safe timers for bullet-proof reliability. • Localization ready for 43 languages. • Offline-first design so you can train anywhere—basement, beach or backcountry. –––––––––––––––––––––––––– LEVEL UP YOUR WORKOUT TODAY Whether you’re chasing PRs, cutting weight, boxing rounds, CrossFit WODs, AMRAP challenges, plyometric sets or simple home fitness, HIIT Timer Pro keeps the clock so you can keep the intensity. Download now and feel the difference in your very next session! –––––––––––––––––––––––––– SUBSCRIPTIONS • Hiit Timer Pro – Yearly: US $19.99 per year — free for the first week • Hiit Timer Pro – Monthly: US $2.99 per month –––––––––––––––––––––––––– Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is update cadence: HIIT Timer Pro at every 9 days against Intervals One's every 3 months. 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. Intervals One sells 3 in-app purchases, starting at $1.99 per month and HIIT Timer Pro sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.
Intervals One ships an update every 3 months, HIIT Timer Pro every 9 days. The most recent releases landed on September 7, 2026 and September 26, 2026 respectively.
| Parameter | Intervals One | HIIT Timer Pro |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 3 months | Every 9 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | — | Freemium |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 50 MB | 20 MB |
| Age rating | 4+ | 4+ |
| Developer | Ninety Six Software Ltd | Develak |
In-app purchases
Intervals One
- Pro Monthly7 Days trial$1.991 Month
- Pro Annual$14.991 Year
- Pro Lifetime$19.99
HIIT Timer Pro
- SimplyTask Pro - Monthly$2.991 Month
- Hiit Timer Pro - Yearly7 Days trial$19.991 Year
Questions
Is Intervals One free?
Is HIIT Timer Pro free?
Do Intervals One or HIIT Timer Pro have ads?
Which is updated more often, Intervals One or HIIT Timer Pro?
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