Comparison

Intervals vs Heidi Workout Timer

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

Head to head
About

Intervals

This app provides a straightforward interval timer for structured training sessions like HIIT, boxing, or circuit training. It offers customizable timer profiles, clear visual and audio cues for transitions, and tracks your workout statistics. It can also function as a Pomodoro timer for focused work blocks.

Highlights
  • Customizable timer profiles
  • Clear visual countdown ring
  • Audio and haptic alerts
  • Session statistics tracking
  • Screen stays awake during sessions
  • Pomodoro timer functionality
Features
Read full description

Intervals is a beautifully simple interval timer built for anyone who trains with structure โ€” whether that's a HIIT session, boxing rounds, circuit training, or a focused Pomodoro work block. Set your work time, set your rest time, and hit Start. Intervals handles the rest โ€” counting down each phase, signalling transitions with audio and haptic cues, and tracking your session as you go. Multiple Timer Profiles Create and save as many named timer profiles as you need. Switch between "Boxing Rounds", "HIIT", "Pomodoro", or any custom setup in seconds. Your profiles are always one tap away. Clear Visual Feedback A large countdown ring fills as each phase progresses. The entire screen shifts โ€” green for work, red for rest โ€” so you always know exactly where you are, even at a glance from across the room. Audio & Haptic Alerts A countdown tone plays 3 seconds before each transition, so you're never caught off guard. Haptic feedback keeps you in the loop when the screen isn't visible. Session Stats See your work periods, rest periods, and total elapsed time at a glance. Stay motivated as those numbers climb. Built for Focus Keep your screen awake during sessions so Intervals is always there when you look up. No subscriptions. No ads. Just a timer that stays out of your way. Works as a Pomodoro Timer too Set 25 minutes of work and a 5-minute rest for the classic Pomodoro technique โ€” or any work/break ratio that suits your flow.

About

Heidi Workout Timer

Features
Read full description

This simple interval timer will track time during your workout to keep you working hard. This app is suitable for many types of workout, including: HIIT, Pilates, Tabata, Yoga, and more. Easily create, edit, and delete timed intervals for your workouts. Timers countdown each exercise, rest and recovery period โ€“ and the full workout. Sound and/or vibrate signal the end of each interval. There is a large display which can be read at a distance. You can see a visual history of your recent workout history. Both English and German languages are available. The app can be displayed in light or dark mode, and has a choice of sounds.

Screenshots

Intervals4 screens
Heidi Workout Timer4 screens

Verdict

The call

The clearest difference is in-app purchases: Heidi Workout Timer at none against Intervals's 4. Heidi Workout Timer also leads on update cadence (fortnightly vs every 3 months) and iOS requirement (12.4 vs 26.0). On price, ads and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Intervals sells 4 one-off in-app purchases. Heidi Workout Timer asks for nothing beyond the download.

UpkeepUpdate frequency

Intervals ships an update every 3 months, Heidi Workout Timer fortnightly. The most recent releases landed on July 18, 2026 and September 25, 2026 respectively.

Scorecard3 real differences ยท 5 level
Intervals versus Heidi Workout Timer: the parameters behind the verdict, then further details
ParameterIntervalsHeidi Workout Timer
PriceFreeFree
Positive reviews45.5% of reviewsโ€”
Update frequencyEvery 3 monthsFortnightly โ€” better
AdsNoNo
In-app purchasesYesNo โ€” better
MonetizationFreeโ€”
DevicesiPhone, iPadiPhone, iPod
Requires iOS26.012.4 โ€” better
Further details โ€” not scored
Size4 MB12 MB
Age rating4+4+
DeveloperRGB Consulting LimitedHIJO DIGITAL LTD

In-app purchases

4 purchases

Intervals

One-time4
  • Small Tip$0.99
  • Remove Ads$0.99
  • Medium Tip$1.99
Show 1 more
  • Large Tip$3.99
None

Heidi Workout Timer

No in-app purchases

Questions

Is Intervals free?
Intervals is free to download, with in-app purchases available.
Is Heidi Workout Timer free?
Heidi Workout Timer is free to download, with no in-app purchases.
Do Intervals or Heidi Workout Timer have ads?
Neither Intervals nor Heidi Workout Timer shows ads.
Which is updated more often, Intervals or Heidi Workout Timer?
Intervals ships an update every 3 months, and Heidi Workout Timer fortnightly. Most recently, Intervals was updated on July 18, 2026 and Heidi Workout Timer on September 25, 2026.

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