Comparison

Interval Timer vs HIIT Timer Pro

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Interval Timer

This app is a versatile interval timer designed for various training styles like Tabata and HIIT. It offers customizable workout parameters, voice guidance, and music ducking for an enhanced training experience. Save your custom workouts and track your progress.

Highlights
  • Customizable interval settings
  • Voice assistant with text-to-speech
  • Music ducking for audio integration
  • Save custom workouts
  • Tabata, Rounds, Stopwatch modes
  • Apple Health integration
Features
Read full description

Special timer for interval training. This Interval Timer offers: • Very intuitive interface. After installing this timer you need to press one button to start a tabata workout with classic settings. • Ability to set up prepare, work, rest, rest between sets, cool down time, number of cycles and sets. • Intervals can be configured individually. With this interval training timer you can create any interval workout with any sequence of intervals. • Voice assistant with text-to-speech. • Add descriptions to intervals that will be displayed on the timer screen and will be voiced. • Bright and nice colors. • Ability to lower the volume in your music player while playing the timer sounds (ducking). • List of your saved workouts. • NEW! Quick workout - setup your workout with fast and ease. The opportunity to display mode: - Tabata Protocol. - Rounds. - Stopwatch. - Intervals. Tabata is a form of high-intensity interval training (HIIT): • Workout hard for 20 seconds • Rest for 10 seconds • Complete 8 rounds It's time to train, good luck! Application supports Apple Health to track activity during workout. You can download the app for free. Further use requires a subscription. At our discretion, we may decide to offer you a free trial per the terms displayed in the app. Please note that: When opting for a subscription, you pay the fixed price for your country, which is displayed in the app. Payment will be charged to your Apple ID Account upon confirmation of purchase. Subscription automatically renews and free trial automatically converts into subscription unless auto-renewal is turned off at least 24 hours before the end of the current period. Your Account will be charged for renewal within 24 hours prior to the end of the current subscription period. You can manage your subscriptions and turn off auto-renewal by going to Account Settings after purchase. When canceling a subscription or a free trial, your subscription/free trial will stay active until the end of the current period. Auto-renewal will be disabled, but the current subscription will not be refunded. Terms of Use and Privacy Policy: https://docs.google.com/document/d/1FMzBsd_mSO69xuzkpOKljPPtxRMWMTzt2iGs6wJIhik

About

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.

Highlights
  • 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
Features
Read full description

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

Interval Timer4 screens
HIIT Timer Pro4 screens

Verdict

The call

The clearest difference is monetization model: HIIT Timer Pro at freemium against Interval Timer's subscription. HIIT Timer Pro also leads on rating (5.0 vs 4.7) and update cadence (every 9 days vs every 4 weeks). Interval Timer's advantage is ratings volume (3.5K vs 1). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Interval Timer sells 12 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.

ReceptionRating · Positive reviews · Number of ratings

HIIT Timer Pro holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Interval Timer has 3.5K ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Interval Timer ships an update every 4 weeks, HIIT Timer Pro every 9 days. The most recent releases landed on October 12, 2026 and September 26, 2026 respectively.

Scorecard4 real differences · 6 level
Interval Timer versus HIIT Timer Pro: the parameters behind the verdict, then further details
ParameterInterval TimerHIIT Timer Pro
PriceFreeFree
Rating4.7 (3.5K ratings)5.0 (1 ratings) — better
Positive reviews66.5% of reviews—
Number of ratings3.5K — better1
Update frequencyEvery 4 weeksEvery 9 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationSubscriptionFreemium — better
DevicesiPhoneiPhone
Requires iOS16.0 — better17.0
Further details — not scored
Size243 MB20 MB
Age rating4+4+
DeveloperHIIT Apps Sp. z o.o.Develak

Customer experience

Interval Timer

All ratings3,466 ratings
Positive92.1%
Neutral2.3%
Negative5.6%
Written reviews442 reviews
Positive66.5%
Neutral7.9%
Negative25.6%

HIIT Timer Pro

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Interval Timer

Reported bugs

3 issues
  • Workouts disappearing
  • App crashes and freezes
  • Timing issues with intervals

Requested features

4 requests
  • Apple Watch integration
  • More customization options
  • Additional audio cues and prompts
  • Improved workout tracking and history

HIIT Timer Pro

Not enough reviews yet to summarise bugs or requests.

In-app purchases

12 purchases

Interval Timer

Subscriptions8
  • Intervals: monthly membership7 Days trial$1.991 Month
  • Intervals: membership7 Days trial$3.993 Months
  • Intervals: monthly membership$4.991 Month
Show 5 more
  • Intervals: yearly membership$6.991 Year
  • Intervals: yearly membership1 Year trial$9.991 Year
  • Intervals: yearly membership7 Days trial$19.991 Year
  • Intervals: yearly membership7 Days trial$24.991 Year
  • Intervals: membership7 Days trial$24.991 Year
One-time4
  • Intervals | PRO version$14.99
  • Intervals | Membership$14.99
  • Intervals | Membership$34.99
Show 1 more
  • Intervals | Membership$39.99
2 purchases

HIIT Timer Pro

Subscriptions2
  • SimplyTask Pro - Monthly$2.991 Month
  • Hiit Timer Pro - Yearly7 Days trial$19.991 Year

Questions

Is Interval Timer free?
Interval Timer is free to download, with in-app purchases available.
Is HIIT Timer Pro free?
HIIT Timer Pro is free to download, with in-app purchases available.
Which has better reviews, Interval Timer or HIIT Timer Pro?
HIIT Timer Pro is rated higher. Interval Timer averages 4.7 out of 5 from 3.5K ratings, while HIIT Timer Pro averages 5.0 from 1 ratings.
Do Interval Timer or HIIT Timer Pro have ads?
Neither Interval Timer nor HIIT Timer Pro shows ads.
Which is updated more often, Interval Timer or HIIT Timer Pro?
Interval Timer ships an update every 4 weeks, and HIIT Timer Pro every 9 days. Most recently, Interval Timer was updated on October 12, 2026 and HIIT Timer Pro on September 26, 2026.

Other comparisons