AppCorpus
Market US

Interval Timer ++

by Sunny Studio

iPhone · iPad

Active Last checked 5 Sep 2026

Quick verdict

What it is
Store information collected; independent summary not yet available.
At a glance
  • From $0.49/mo
  • Free to download
  • In-app purchases

Categories and search queries

Official categories

AppCorpus categories

Key functions

Function Availability Access Scope Evidence
Free app Yes Free Store published
In-app purchases Yes Limited free Store published

Screens

App Store

21 store screenshots

Interval Timer ++ ipad screenshot 1
Interval Timer ++ ipad screenshot 2
Interval Timer ++ ipad screenshot 3
Interval Timer ++ ipad screenshot 4

Pricing & paywalls

App Store

  • Interval Timer Pro for a Year — $5.99/year ($0.49/mo)
  • Premium Timer for One Year — $2.99/week
  • Premium Timer for One Year — $7.99/year ($0.66/mo)
  • Interval Timer Pro — $0.99
  • Interval Timer Pro — $1.99
  • Premium Timer for Entire Life — $8.99

Ratings & reviews

App Store

4.8 14782 ratings · App Store

  1. 5/5Crucial missing feature - now added by dev!

    Raising my rating from 3 to 5 stars. The update you just released addresses my concerns completely. Specifically, the new ‘Countdown Beep’ is much more pleasant to hear and fits well with the start and rest sounds. The other sound options are a great plus too. Thank you for taking my review into consideration and coming out with an update so quickly. I’ve purchased the premium and am using it with my home workouts going forward. Thanks again, and good work. [Old review - no longer relevant...] I want to rate this higher, because it more or less provides what I’m looking for. However, a fatal flaw is a complete lack of customization for the sounds. The countdown “bell” ... [redacting the rest of this old review since dev released update]

    Smc1986 · 5 Sep 2026

  2. 5/5Exactly what I need with one minor bug

    I‘m using the Pro version as part of a free trial because I really wanted to try the custom timers. After setting up a HIIT workout with a bunch of named exercises, I found the flexibility of the timers to be perfect for my workout. Unfortunately, I have a few exercises where I need to switch from left to right halfway through, and the halfway beep sound doesn’t appear to work. Other than this one issue, this app is exactly what I was looking for. The customizable sounds help distinguish between different parts of the workout, even with music playing. The colors are easy on the eyes and the overall design is very clean and intuitive. I’ve tried a bunch of other workout/interval timer apps and this is the best by far.

    bluehazetech · 5 Sep 2026

  3. 5/5Awesome timer and great tech support

    I had been trying different timers and I really liked this one because you can do a 16 minute routine with 4 sub routines within it (basically, it beeps you every 4 minutes). Well, at least that’s my timer routine so I bought the lifetime membership and it was great. But something happened a month or so later and it started showing me the nag screen (the one that offers you different rates). So that got old fast. So I wrote up a support question. *Bert* immediately emailed back (well, at least within 48 hours) and, I’m not gonna lie. It took some time but, after a few weeks, they were able to come out with a (literally) bug-free version. Yay Bert and the awesome developers of this app!! My thanks guys. ~ Joey

    JoeyMtSac · 5 Sep 2026

  4. 5/55 star app with one annoying quirk

    Edit: TOGGLING THE NOTIFICATIONS WORKED! Raising my score back to 5 stars where it deserves to be. Thank you! Original review: I’m dealing with an injury so my workout routine is on hiatus for a few weeks. Despite this, every morning at 8AM I get a reminder on my phone encouraging me to workout. Some months ago it felt like it knew my routine and would ask me to workout if I missed a specific time, but now it’s everyday without fail. The worst part is I can’t find a way to turn it off without risking losing the background notifications if I switch apps to adjust music. I’ve been using it for a year and hope to continue using it but the constant nagging to workout during my time off is killing me.

    Mandlize · 5 Sep 2026

  5. 5/5Have to repurchase

    I like the timer but I have had to “re- purchase “ it every time I use it. The purchase screen continues to be the first thing I see every time I open it. I bought the lifetime but it defaults to the 1 year subscription so I’m afraid it will try to charge me for a changed subscription if I accidentally click the highlighted button at the bottom before changing the subscription type back to lifetime which I’m sure is the scam. It does not seem to charge me again when I click the lifetime button again but it is pretty annoying to do every time I use the app after paying $9.

    Gdgh124746 · 5 Sep 2026

Privacy & accessibility

App Store

Privacy

  • Data Not Linked to You — Analytics — Usage Data — Product Interaction Developer declared
  • Data Not Linked to You — App Functionality — Diagnostics — Crash Data Developer declared
  • Data Not Linked to You — App Functionality — Diagnostics — Performance Data Developer declared
  • Data Not Linked to You — Third-Party Advertising — Identifiers — Device ID Developer declared
  • Data Not Linked to You — Diagnostics Developer declared
  • Data Not Linked to You — Identifiers Developer declared
  • Data Not Linked to You — Usage Data Developer declared

Accessibility

No accessibility labels collected yet.

Versions

App Store

  • 3.10.0

    Minimalistic workout timer for HIIT and Tabata. - Better countdown sound - Adjust workout timer second-by-second, for short workouts

  • 3.11.0

    Simple & Powerful workout timer for HIIT and Tabata. - Support muting workout sound in Settings - Drag-n-drop to reorder their custom timers (paid users feature)

  • 3.12.0

    Simple & Powerful workout timer for HIIT and Tabata. - Bug fixes & performance improvements

  • 3.13.0

    Simple & Powerful workout timer for HIIT and Tabata. - Bug fixes & performance improvements

  • 3.14.0

    Simple & Powerful workout timer for HIIT and Tabata. - Bug fixes & performance improvements

  • 3.14.1

    Simple & Powerful workout timer for HIIT and Tabata. - Bug fixes & performance improvements

  • 3.15.0

    Simple & Powerful workout timer for HIIT and Tabata. - Added rich sound settings

  • 3.16.0

    Simple & Powerful workout timer for HIIT and Tabata. - Round timer added to repeat interval exercises - You can adjust the sound volume as you like

  • 3.16.1

    Simple & Powerful workout timer for HIIT and Tabata. - New colorful timer list display - New premium timer added - Bug fixes & performance improvements

  • 3.17.0

    Simple & Powerful workout timer for HIIT and Tabata. - You can save your workout records in Apple Health app - Start your workouts with Charles's motivational alert - Finish your workouts with colorful and informative report

  • 3.17.1

    Simple & Powerful workout timer for HIIT and Tabata. - You can join our Facebook group or our Subreddit - Bug fixes & performance improvements

  • 3.3

    - Performance improvements

  • 3.4

    - Bug fixes

  • 3.5

    - Bug fixes

  • 3.6

    Fixed a crash when working out.

  • 3.7

    - Updated "7 Minutes HIIT" timer - Updated "6 Minutes TABATA" timer

  • 3.8.0

    Improved background timer accuracy.

  • 3.9.0

    Innovative workout timer for HIIT and Tabata. - Bug fixes and performance improvements

  • 4.0.0

    Simple & Powerful workout timer for HIIT and Tabata. - A long-expected new timer type: advanced timer, which enables you to fully customize the workout routine. - You can rename the exercise, adjust the interval timer, change color scheme...make your own customized colorful timer. - A brand-new design for timer display, a real eye-candy for your training.

  • 4.1.0

    Simple & Powerful workout timer for HIIT and Tabata. - A weekly report is available now - A brand-new design for calendar review

  • 4.2.0

    Simple & Powerful workout timer for HIIT and Tabata. - You can use Interval Timer++ on your Apple Watch now

  • 4.3.0

    Simple & Powerful workout timer for HIIT and Tabata. - Bug fixes for watch app

  • 4.3.1

    Simple & Powerful workout timer for HIIT and Tabata. - Fixed a crash on app start.

  • 4.3.2

    Simple & Powerful workout timer for HIIT and Tabata. - Fixed a crash on calendar view.

  • 4.3.3 · 16 Dec 2021

    Simple & Powerful workout timer for HIIT and Tabata. - Automatically sync the workouts data from Watch app with the Interval Timer app

Alternatives

Availability by market

Data quality & evidence

Page completeness
Live store listing
Last verified
5 Sep 2026
Sources
App Store

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