Interval Timer Pro

Shown for US

• Price: $2.99

Last verified 6 Aug 2026

Shown for US

4.5 596 ratings · App Store

1. 5/5Very customizable!!

   I have used this for nearly a year doing interval run training. I love that I'm able to add multiple workouts, customize high and low intervals, breaks, and warmup/cool down. The notifications are loud enough that I'm able to hear over my music or podcast, and the sounds keep me on track for training. It's easy to pause and restart as needed and I love that I can program multiple run interval times within the same workout. I just upgraded to the full version; I'm not really sure there's any difference aside from the lack of ads at the bottom of the screen. Still, I want to support the developer and laud the work put into this app. It does everything I need and runs seamlessly in the background while I run. It saves my workouts and gives me the option to share socially. I highly recommend this over other interval apps I've tried!

   Chopper&G · 6 Aug 2026

2. 5/5More sounds, please

   Great app, I have been using it for years as a clock chime to count off time while I am working. I tend to focus too much and lose track of time. This app gently reminds me how much time I have left without interrupting the flow state. Gently is the key word. There only 1-2 sounds I can use, the rest are too jarring. And the trouble is I need to change the sounds periodically, because after a while I stop noticing them if I am too deep in thought. WOULD YOU KINDLY ADD MORE SOUNDS, which would be SHORT and PLEASANT. Or connect system own sounds. Thank you very much for considering. Wonderful app,otherwise, I use every day for several hours.

   morezmore · 6 Aug 2026

3. 2/5Great until I switched to iOS 12

   I use this to walk/slow trot in intervals. I’ve used it for awhile. In July I discovered Pokémon GO. On my walking/saunter route, sometimes I stop to get in a raid. I used to be able to pause IntervalTimer Pro, fight the raid, then resume my routine. Since I upgraded to iOS 12 (from iOS 10), if I pause IntervalTimer Pro and switch to another app, my routine stops. I was used to that earlier if I had it paused for awhile (like 5 minutes or more), but today I lost my routine when it was paused and I switched apps for maybe 10 seconds, if that. I went to Deltaworks’ website to try to contact their support rather than mention this in a review, but they don’t seem to have anything listed for support. Additionally, IntervalTimer (free or pro) is not listed on their site. I also echo a previous reviewer’s comment about available sounds. I’m disappointed some of the sounds were removed. They remain in old routines I created, but I cannot add those same sounds to new routines. I assume that was an IP thing, and sometimes things like that can’t be helped. I miss the human voice announcing the routine is complete (she was replaced by a computer-generated voice). Again, maybe that was a residuals thing and the devs needed to cut some costs. But I miss the human. I really miss being able to pause for a minute or three, though. If this can’t be fixed, I’ll have to figure out how to force my Fitbit app to do this, or I’ll have to get another interval app.

   imperatrix mundi · 6 Aug 2026

4. 5/5Practical and easy round timer

   I purchased this round timer when schedule changes meant that I had to leave my CrossFit class. I still wanted to do a modified CrossFit so I use this timer along with a wireless headset to grab a similar workout no matter where I am. I like that you can control the music from within the app. When the phone is in "landscape" orientation it's easy to see the timer from across a room. You have to take some time to set up your timers, but once you have them set, works perfectly. I have had this about a year and I am very pleased!

   Amb2016 · 6 Aug 2026

5. 4/5Music shuffle

   I’d give this 5 stars, but the one minor issue I’ve had this past year is after some update that occurred my music will no longer play on shuffle. I have about 7000 songs on my phone that I enjoy listening to over time. If I set my music to shuffle the moment I start using the app it reverts back to playing in alphabetical order. Every other use in this app is pretty flawless & easy to learn & use. I just get tired of having to open my music and changing to something new each time instead of seamlessly going through different genres without touching my phone.

   Jdi_will69 · 6 Aug 2026

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