HIIT • Workouts & Timer

Shown for US

• Interval Timer Pro + Workouts — $12.99
• Interval Timer X premium — $19.99
• Interval Timer X premium — $29.99
• Lock-in our cheapest price! — $2.99

Last verified 30 Aug 2026

Shown for US

4.8 31071 ratings · App Store

1. 5/5Love this app!

   I recently had a baby and I have neck problems. I’ve only been using it about a week but I’ve wanted something to help me to get toned after having my baby and give my muscles a good workout without over everting. This is a great app for me. I love that you can choose your workouts, they let you know the difficulty and length of each one and my favorite feature is that they show you what exercise moves you’ll be using AHEAD of time. This allows me to determine if a routine is suited for me before I find out after struggling half way through. Also the short break in between moves allows me to catch my breath and prepare for the next reps. This app has been awesome and challenges me to work up a sweat without over complicating things. Definitely recommend!

   EmeraldShay · 30 Aug 2026

2. 5/5Sweat!

   So I downloaded this app a while back but was procrastinating with my fitness. Finally gave it a try and did the 15 minute beginners workout to burn 100 calories and boy can I tell you you def get a workout! It’s only 15 mins but you realize how out of shape you are lol you can def build up a sweat. It’s nice because there are rest breaks in between each set and you can also pause when needed. This is good to help build up stamina and prepare for the other workouts available through the app. Instead of wasting money on a gym membership I’d recommend trying this first and see how you feel. It’s nice because you can do these workouts anywhere you take your phone! You just have to stop being lazy and give it a try!

   Jstarfit · 30 Aug 2026

3. 5/5Great for quarantine

   You can get a great workout at home without weights. I used to go to F45 but I’m not going back to any gym anytime soon with the pandemic raging. These workouts are great to do between my runs. I like the varying lengths offered so there is no excuse not to do a workout. I also love that it does not have any music of its own. It allows you to play whatever music you like while still hearing the voice prompts to rest or switch movements. I hope they add some workouts with commonly available free weights like 5-25lbs — or make another app for strength — that would really help us quarantine fitness fanatics.

   MorbidlyObeseMaggot · 30 Aug 2026

4. 5/5Great

   This app works great. I love working out but don’t like socializing that much so I don’t go to the gym. I haven’t worked out as much as I wanted in the last couple of weeks but this app really works. It makes you feel like you’ve done great and might hurt a little after or a lot but you know that’s what’s supposed to happen. I’ve read some reviews about how it’s not beginner but you know HIIT does mean high intensity interval training so it’s supposed to be intense. Make sure you stretch so you don’t pull muscles as easily and umm, stay safe.

   oreoolive · 30 Aug 2026

5. 5/5LOVE

   I love this app. I’ve tried some of the bigger “brand-name” workout apps and programs, and their fees always frustrated me. Here I get a BETTER workout without the flash or bells and whistles and I don’t have to pay a thing. I don’t mind the ads one bit. Super easy to click out of. My favorite workout, after trying a few of them over the course of the past week, is Burn 100. I love the set-circuit and rest time feature. Love the short explanations of unfamiliar sets. (Although most of them will be familiar to any HIIT novice or veteran alike.) PLEASE DON’T CHANGE A THING, THIS IS THE PERFECT FREE WORKOUT APP. thankyouthankyouthankyou

   smpaun · 30 Aug 2026

Privacy

Accessibility

No accessibility labels collected yet.