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Updated July 2026 · real, multi-region App Store reviews
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The verdict on

HIIT • Workouts & Timer

85
User verdict / 100 High confidence Loved, with caveats

HIIT • Workouts & Timer is a highly-rated app praised for its effective, varied, and easy-to-follow workouts suitable for all fitness levels, though some users report issues with subscription billing and battery drain.

4.8★ lifetime (31,052) Free + in-app purchases since 2014 by Fast Builder Limited updated 7.6 mo ago recent negative 2% 120 reviews across 4 regions
Workout Effectiveness Variety & Customization Ease of Use & Guidance Free vs. Paid Content Subscription & Billing Issues Battery Drain
5★180
4★14
3★2
2★0
1★4
recent reviews across 4 regions, vs the 4.8★ lifetime average

HIIT • Workouts & Timer provides a wide range of high-intensity interval training workouts that users find effective for getting a good sweat and staying accountable. The app is generally well-regarded for its simplicity, clear instructions, and flexibility in workout duration and intensity, making it suitable for both beginners and advanced users. However, a small number of recent reviews highlight concerns about deceptive free trial billing and significant battery drain.

What users like

  • Offers effective and challenging workouts that lead to significant sweating and fitness improvementR4R8R14R27
  • Provides a wide variety of workouts with different lengths, difficulties, and types, suitable for all fitness levelsR6R9R10R45
  • Workouts are easy to follow with clear video demonstrations and instructionsR7R32R41R53
  • Convenient for home use and can fit into busy schedules due to short workout durationsR3R6R28R36
  • Allows users to listen to their own music during workoutsR26R28R73R91
  • Many workouts are available for free, making it a good valueR5R46R60R83

What users complain about

  • Some users report being charged for subscriptions despite signing up for a free trial or finding it difficult to cancelR38R153
  • Can cause significant battery drain even when not in active useR95
  • Limited number of free workouts before a subscription is requiredR152
  • Some advanced users find even the most difficult workouts too easyR104

Latest update · v6.0.1

What the developer says changed (the verdict above weighs this against what reviewers report):

Bug fixes and optimizations. We're always looking for ways to improve our apps. Make sure to leave us a review and let us know what you would like to see next! Happy sweating~

Recurring themes

Workout Effectiveness positive
Users consistently report that the workouts are highly effective, challenging, and lead to significant sweating and improved fitness. Many feel they get a great workout comparable to a gym session in a short amount of time.R3R4R8R14
Variety & Customization positive
The app offers a good variety of workouts differing in length, difficulty, and focus, catering to all fitness levels from beginners to advanced. Users appreciate the flexibility to choose workouts that fit their schedule and ability.R6R9R10R24
Ease of Use & Guidance positive
Reviewers frequently praise the app for being simple, user-friendly, and easy to follow. The clear video demonstrations and instructions for each exercise are highly valued, especially by beginners.R7R11R32R34
Subscription & Billing Issues negative
A few users reported being charged for a subscription despite expecting a free trial or finding it difficult to cancel their subscription. This indicates potential issues with the billing process or clarity around free trial terms.R38R153
Battery Drain negative
One user specifically noted that the app causes massive battery drain, even when not actively in use.R95
Free vs. Paid Content mixed
Many users appreciate the availability of free workouts, with some surprised by the quality for a free app. However, some note that only a limited number of workouts are available without a subscription, and one user expressed a preference for a one-time purchase over a monthly fee.R5R46R60R83

Who it's for

This app is for individuals looking for effective, varied, and easy-to-follow HIIT workouts that can be done at home or on the go, especially those with limited time or equipment R3R6R28R36. It's suitable for all fitness levels, from beginners seeking to get started to more advanced users wanting a quick, intense session R9R25R59. It's also for users who prefer to listen to their own music while working out R26R28. It may not be ideal for users who find even advanced HIIT workouts too easy R104 or those who are wary of subscription models and potential billing issues R153.

Evidence note: The evidence for battery drain and subscription/cancellation issues is thin, with only one or two reviews each. The vast majority of recent reviews are positive, praising the app's effectiveness and ease of use. The developer's notes mention 'bug fixes and optimizations' but do not specifically address the reported battery drain or billing issues, which contradict the 'optimizations' claim.

Frequently asked

Is HIIT • Workouts & Timer app free?
Yes, the HIIT • Workouts & Timer app is free to download and offers a variety of free workouts, though some content requires a subscription R5R46R60R152.
Are the workouts suitable for beginners?
Yes, the app offers workouts for all fitness levels, including beginners, with clear instructional videos to help users understand the exercises R9R25R59.
Can I listen to my own music with the app?
Yes, users report that they can listen to their own music seamlessly while using the app for workouts R26R28R73R91.
Does the app track progress or calories burned?
Yes, the app can track your workouts and weight, and some users note it connects to Apple Health and counts calories R43R53R64R72.

What reviewers actually said

Built only from these 120 real reviews (foreign ones translated). Superscripts jump to the quote here. Apple has no per-review links, so [ref] opens that app's reviews on the App Store.

  1. [R4] 5/5 · US Excellent Workout: This workout worked many parts of my body and I actually broke a good sweat by ramping it up a bit with dumbbells!
  2. [R8] 5/5 · US First HIIT Exercise: Killer!!: A friend introduced me to this app with short time exercise routines. I just did my first one for 16 min. OMG I’m sweating more now in 16 min than I would in a 45 min walk and stretch routine. This is the way to go. I’m gonna lose so much weight when I combine this with my eating routine. Awesome!
  3. [R14] 5/5 · US Amazing: This ap is more then what I expected! I love it i haven’t sweat this good since high school during wrestling! If you wanna workout were your drenched in sweat and are laying on your back by the end of your workout this is the ap just for you! Thank you! 😊 🤗
  4. [R27] 5/5 · US Great routines!: As soon as I have something for everyone. My online instructor was having technical issues so I resorted to this app thinking I wouldn’t sweat as much. I think I sweat twice as much and got my heart rate up really high. I will definitely be using this more often
  5. [R6] 5/5 · US Great Workout App: Lots of different length workouts to fit any time slot. Very simple moves but they are also very challenging. I feel great when I finish one. Definitely recommend
  6. [R9] 5/5 · US i love this app: This app is absolutely amazing. Oh my life I have been told that I was too fat or I wasn’t good enough. And after a while I started to believe this. So I searched up a bunch of workout apps.......... this one seemed to work the best. the workouts are amazing and they have different difficulties for beginners or advanced people. so they aren’t all hard. i recommend getting this app
  7. [R10] 5/5 · US Awesome App: Plenty of options for all fitness levels, work out types and time duration. Love it!
  8. [R45] 5/5 · US Best workout app!: I love the different levels and duration of exercises. This has been the most usable exercise app I have ever worked with.
  9. [R7] 5/5 · US No fuss: First time using the app and it was great. Direct, no fuss, good variety of exercises, definitely got my heart rate up, challenging and the little computerized instructor was reasonably easy to see and understand.
  10. [R32] 5/5 · US Best hiit workouts: These are the best hiit workouts I have tried. Love the example of each exercise beforehand. Highly recommend.
  11. [R41] 5/5 · US Perfect quick workout: Guided very well step by step, easy to follow even when your eyes are not in the screen. Gives you a preview ahead of time of what’s coming next. All around very well done HIIT App.
  12. [R53] 5/5 · GB Perfect: Perfect u LOVED❤️ it. The exercises are easy and if you don’t understand they show you a video so you do if you have a apple phone you can link it to your apple health and which is AMAZING. Best app i have ever installed
  13. [R3] 5/5 · US Love these workouts!!!!: I feel like I have gotten a great workout in when I can’t go to the gym
  14. [R28] 5/5 · US Great way to work out at home.: Was able to do while my son was playing in the downstairs living room. I also enjoy playing my own music and it’s seamless with the app. Looking forward to making this my routine.
  15. [R36] 5/5 · US Great home on the go workout app thank you!!!!: Great home on the go app no more excuses not to workout!!! Thank you!!!!
  16. [R26] 5/5 · US Great workouts: Love that I can listen to my own music
  17. [R73] 5/5 · GB Got me Working: Such a great Hiit app, honestly gets me sweating buckets after each one, can listen to music at the same time, and even go back or skip specific areas, nice amount of workout combos.
  18. [R91] 4/5 · GB Simple to use and you can your own music: Great little app, simple to use with basic animations instead of long videos. Varied and free- only fault is could do with a few more work outs
  19. [R5] 5/5 · US Great app: I’m surprised it’s free the workouts are hard and they push you and there’s so many to choose from!!
  20. [R46] 5/5 · US Awesome: They give you all the benefits of apps you pay for, for free. This is a steal! Download it!
  21. [R60] 5/5 · GB It really is free: I’m fed up of downloading apps that say free but they are not. You have to watch a 5 sec video before every session on this app but that doesn't bother me!
  22. [R83] 5/5 · GB A really great app: Loads of exercises. Not many ads. Range of abilities and plenty for beginners. The best free home workout app I’ve found.
  23. [R38] 1/5 · US Almost impossible to contact to cancel.: Hate this, never used it, can’t figure out out to cancel.
  24. [R153] 1/5 · AU Scam: Stated that it was a free trial, however took the money from my account without the free trial. Very deceptive.
  25. [R95] 1/5 · GB Massive battery drain!!: Uses up all background power when not in use
  26. [R152] 3/5 · AU Good: It’s good the work outs are amazing but you can only do a couple if you don’t have the subscription
  27. [R104] 3/5 · CA Training trop facile: Jusqu’à présent même les entraînements les plus difficiles sont trop facile dans mon cas.
  28. [R24] 5/5 · US GREAT Variety!: I love the choices, the moves, the cues. This is a keeper. You can use it as a stand alone workout, or a quick cardio before weights or a walk to burn more calories (& work your heart).
  29. [R11] 5/5 · US So helpful and user friendly: I recommend this to anyone who struggles working with a routine
  30. [R34] 5/5 · US Love this app!: Great options for workouts using basic movements and body weight. Love the demo videos!
  31. [R107] 5/5 · CA Love this App! Great, quick, effective workouts!: Love that this app is free (just have tolerate the ads). It’s perfect if you’re short in time or equipment. Gets you sweating & burning fat! Yay!! Highly recommended 😆
  32. [R25] 5/5 · US Great workouts: Perfect workouts for any skill level. Love it!
  33. [R58] 5/5 · GB Excellent for home use: Good range of various excel uses suitable for all fitness levels with video instructions for those movements you don’t know
  34. [R59] 5/5 · GB Beginner HIIT: Really motivating with countdowns abs half way markers. Really clear instructions if you are unsure of what an exercise is. I am a total beginner and find the beginners to be levelled perfectly for someone looking to get fitter and slowly improve
  35. [R43] 5/5 · US Working for me.: Loving this app. It’s free. The reminders motivate me each morning. I am tracking my workouts and my weight.
  36. [R64] 5/5 · GB Amzaing: So enjoyable and I glad they count the calories and connects to apps for fitness
  37. [R72] 5/5 · GB Awesome App: This App deserves its 5 stars rating. Great Hit workout sessions. Calories burn is spot on.

Synthesized from 120 recent App Store reviews · updated July 2026 · View on the App Store