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HIIT Timer (App)

  • GDCSoft
  • Device App Device App
  • 17055
  • 42
  • Payment Required


This is a paid product. The first workout is free so that you can try it out, after that you will need to make a one-time payment of $2.49 . Check out the bundle for a significant saving: </p><p></p><p>Unlock requires a one-time Internet connection. Please synch with your phone if you see a "waiting for server" message.</p><p>• Found a problem? Please contact me!</p>

What’s New | | |</p><p>0.0.71 : New devices</p><p>0.0.70 : New devices</p><p>0.0.69 : New devices</p><p>0.0/68 : 955, 255</p><p>0.0.67 : Kayaking</p><p>0.0.66 : D2 AIR X10</p><p>0.0.65 : Epix 2nd Gen and Fenix 7 series</p><p>0.0.64 : Venu2Plus</p><p>0.0.63 : Greek language. (Thanks Tasso!)</p>

Additional Information


This app requires access to:

  • Send/receive information to/from the Internet
  • FIT files (activity recordings)
  • Record additional information into activity files
  • GPS location
  • Sensor data (i.e., ANT+, heart rate, compass)
  • Your Garmin Connect™ fitness profile
  • Approach® S60 Approach® S60
  • Approach® S62 Approach® S62
  • Approach® S70 (42mm) Approach® S70 (42mm)
  • Approach® S70 (47mm) Approach® S70 (47mm)
  • Captain Marvel Captain Marvel
  • D2™ Air D2™ Air
  • D2™ Air X10 D2™ Air X10
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  • epix™ Pro (42mm) epix™ Pro (42mm)
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  • epix™ Pro (51mm) epix™ Pro (51mm)
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  • Forerunner® 255S Forerunner® 255S
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  • Forerunner® 955 Forerunner® 955, Forerunner® 955 Solar
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  • fēnix® 3 fēnix® 3, quatix® 3, tactix® Bravo
  • fēnix® 3 HR fēnix® 3 HR
  • fēnix® 5 fēnix® 5, quatix® 5
  • fēnix® 5 Plus fēnix® 5 Plus
  • fēnix® 5S fēnix® 5S
  • fēnix® 5S Plus fēnix® 5S Plus
  • fēnix® 5X fēnix® 5X, tactix® Charlie
  • fēnix® 5X Plus fēnix® 5X Plus
  • fēnix® 6 fēnix® 6
  • fēnix® 6 Dual Power fēnix® 6 Dual Power
  • fēnix® 6 Pro fēnix® 6 Pro, fēnix® 6 Sapphire
  • fēnix® 6 Pro Dual Power fēnix® 6 Pro Dual Power
  • fēnix® 6 Pro Solar fēnix® 6 Pro Solar
  • fēnix® 6 Solar fēnix® 6 Solar
  • fēnix® 6S fēnix® 6S
  • fēnix® 6S Dual Power fēnix® 6S Dual Power
  • fēnix® 6S Pro fēnix® 6S Pro, fēnix® 6S Sapphire
  • fēnix® 6S Pro Dual Power fēnix® 6S Pro Dual Power
  • fēnix® 6S Pro Solar fēnix® 6S Pro Solar
  • fēnix® 6S Solar fēnix® 6S Solar
  • fēnix® 6X Pro fēnix® 6X Pro, fēnix® 6X Sapphire, fēnix® 6X Pro Solar, tactix® Delta Sapphire, quatix® 6X Solar, tactix® Delta Solar, tactix® Delta Solar Ballistics
  • fēnix® 7 fēnix® 7, quatix® 7
  • fēnix® 7 Pro fēnix® 7 Pro
  • fēnix® 7S fēnix® 7S
  • fēnix® 7S Pro fēnix® 7S Pro
  • fēnix® 7X fēnix® 7X, quatix® 7X – Solar Edition
  • fēnix® 7X Pro fēnix® 7X Pro
  • fēnix® Chronos fēnix® Chronos
  • GPSMAP® 66i GPSMAP® 66i
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  • GPSMAP® 66sr GPSMAP® 66sr
  • GPSMAP® 67 GPSMAP® 67, GPSMAP® 67i
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  • GPSMAP® 86s GPSMAP® 86s
  • GPSMAP® 86sc GPSMAP® 86sc
  • GPSMAP® 86sci GPSMAP® 86sci
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  • quatix® 6X quatix® 6X, quatix® 6X Solar, quatix® 6X Dual Power
  • Rey™ Rey™
  • Rino® 7 Series Rino® 7 Series
  • tactix® 7 tactix® 7, tactix® 7 – Pro Ballistics Edition, tactix® 7 – Pro Edition
  • tactix® 7 – AMOLED Edition tactix® 7 – AMOLED Edition
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  • Venu® 2 Plus Venu® 2 Plus
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  • Venu® Sq. Venu® Sq.
  • Venu® Sq. 2 Venu® Sq. 2
  • Venu® Sq. 2 Music Venu® Sq. 2 Music
  • Venu® Sq. Music Venu® Sq. Music
  • vívoactive® vívoactive®
  • vívoactive® 3 vívoactive® 3
  • vívoactive® 3 Mercedes-Benz® Collection vívoactive® 3 Mercedes-Benz® Collection
  • vívoactive® 3 Music vívoactive® 3 Music
  • vívoactive® 4 vívoactive® 4, GarminActive
  • vívoactive® 4S vívoactive® 4S, GarminActive S
  • vívoactive® HR vívoactive® HR
Average Rating: (42 Ratings)

Roland Meijer 💀
September 14, 2023 | Version 0.0.73

Not good at all

Developer Reply
September 14, 2023, GDCSoft

Sorry to hear it didn't work out for you. If you encountered bugs, better to use "Contact Developer" link and then I can assist you. If it just didn't suit you, it would be helpful to let people know what didn't work for you in case it influences how I develop the app in future. Thanks,

Richard Magiera
January 29, 2023 | Version 0.0.71

Very easy to use. But why it lasts 30 seconds before the Warmup time starts? There is no option to cancel these 30 seconds.

Developer Reply
January 29, 2023, GDCSoft

Hi, all timing should be controllable via settings. If you email me or send your email address using “Contact Developer” link I can help you configure the workout you want. Regards, G

Robert Finlay
February 8, 2022 | Version 0.0.65

Excellent App and really excellent customer service. I agree with several of the reviewers, it would be good to be able to set up and save parameters for different sports in Garmin Connect, and then be able to access these different sports, each with their own parameters, from the watch. I do multiple sports, and therefore I train with different HIIT set ups. Looking forward to seeing this upgrade, thanks!

Αναστάσιος Βλγ
December 17, 2021 | Version 0.0.63

Excellent app. Easy to use. Just what i wanted for my workouts. The developer is always ready to help you. Totally recommended and worth paying for. (Forerunner 235). Thank you my friend

November 10, 2021 | Version 0.0.61

Hi! Does this app count calories?

Developer Reply
November 10, 2021, GDCSoft

Hi Mica, The app doesn't explicitly do anything with calories, but it stores a standard Garmin exercise record in which calories are typically included. However, the best way to do this is to download the app and try it! (The first workout doesn't need a licence, so you can try before you buy.) That way, you can workout whether or not it does what you need. If you want more specific info, I recommend the "Contact Developer" link (include your email address when you do) as that way I can reply directly to you. Cheers, Gaius

May 12, 2021 | Version 0.0.59

So easy to use. Especially love that there are so many different profiles you can create. Great app!

Biagio Livorti
March 12, 2021 | Version 0.0.51

Great app my friend. I use for my boxe training and jump rope. See you soon continue on this way. You are the best.

Jeffrey Honig
January 9, 2021 | Version 0.0.47

Not only does it work great, my suggestion for a feature was implemented in hours! I use this every day for timing streches and exercizes while doing my daily core routine.

Cornelia Tan
December 30, 2020 | Version 0.0.46

Just got my first smart watch and this timer app was just what I needed - previously had to use my phone for interval/tabata timing. Super easy to use for my test workout so I bought the bundle to try out data field options as well. Thanks!

Developer Reply
December 30, 2020, GDCSoft

Thanks for the review, Cornelia, hope you enjoy the bundle. Cheers, Gaius

Ralf Klöppeks
December 20, 2020 | Version 0.0.46

I purchased the app after testing it one time. Test was perfect, just what i searched for to do intervall-Training, don´t matter which sport. Easy to configure, worked from the first time. Payment was also eays to handle. Had only one question regarding sound between intervalls etc, because i only have vibration alert. But i am in contact with the developer. If he has a solution i will give 5 stars.

Developer Reply
December 20, 2020, GDCSoft

Thanks for the review, Ralf. Sorry that I can't earn that last star - hopefully Garmin will give more control over sound in later SDK releases. G

Lara Smith
November 19, 2020 | Version 0.0.41

The BEST Hiit timer out there. I love it. Highly recommend & worth paying for- I've been a customer for a few months, pre-payment requirement and knowing how good it is I paid to continue to use it. The count down to rest/work is fab. Its easy to set up & change as you adapt workouts. However, in the last couple of weeks the HIIT timer has started to record GPS when in training/cardio mode. Is there a way to turn that off? I just want it to record my HIIT workout. The app is brilliant, just a niggle that it looks like I'm outside running when I'm doing an indoor Hiit Workout. Thankyou.

Developer Reply
November 19, 2020, GDCSoft

GPS recording issue fixed with latest build released today. Thanks for your review and also for letting me know about the issue. G

October 27, 2020 | Version 0.0.37

This is the only usable HIIT app on this awful app store so I'm grateful for it. There are a few improvements that can be made: - You shouldn't have to go into the app store to modify the settings, they should be modifiable parameters from within the app itself or within Garmin Connect. - It was disappointing to have to input my payment information on a third party site. - The customization of the data fields and layouts aren't as good as native activity tracking. - The total interval count is useless. In a standard 20-30 min session, I don't need to see the total interval count, I want to see "set 3/4, interval 2/6" or something along those lines. - The sound is not modifiable. Why is there sound both kn my watch and phone? That makes no sense. What if I want to disable one or the other, or both?

Developer Reply
October 27, 2020, GDCSoft

Wow! Thanks for the very detailed review, there is a lot there to think about. Another person has suggested some related changes, so I will take a look at the set labels as part of that (it may be next week as I have a few things on). Not sure what you mean about the notifications sounding on your phone? I only specify alert code for the Garmin, so it is probable that there is a preference on whatever app you are using on the phone that you can change to stop it playing in both places. However, for the HIIT Timer itself, there is a notification preference to allow you to specify either just vibration, just tone, vibration and tone, or nothing at all - please see the "Notification style" setting in settings. Anyway, thanks again for the very informative review, I welcome any requests or comments via "Contact Developer" link or email, too. Thanks, G

October 15, 2020 | Version 0.0.36

MC1911 I got this app a few months ago and since then the developer has vastly improved the functionality of the app. It is absolutely the best app for HIIT training out there. I've tried most of them and this one is by far the best. It's easy to set up and just awesome to use. The developer is very attentive to any feedback and open to suggestions to make it better. Worth the money spent!! I recommend this app to anyone who does HIIT training. ⭐️⭐️⭐️⭐️⭐️!

Stephen Brady
September 28, 2020 | Version 0.0.33

This App requires payment to use. It says first workout is free. However, from the moment I installed the App I have a notification right over the top of my screen requiring me to go to a website to pay. At first I thought it was Spam or adware because the notification doesn't refer to the App name. In addition to this. It isn't a normal notification it covers the watch face preventing me from using most of my watch and cannot be removed. Bad approach to marketing.

Developer Reply
September 28, 2020, GDCSoft

Hi Stephen, First workout is free, if you were seeing a notification before completing a workout then that is a bug. Had you previously installed the app? If so, settings might have been stored from then. If not, please use Contact Developer link to provide more info of what you saw. Thanks, G

Håkan Widlund
September 28, 2020 | Version 0.0.33

Don’t install it. Not possible to control once started. It is much better to use the standard workouts in connect.

Developer Reply
September 28, 2020, GDCSoft

Hi Håkan, What couldn’t you control? Start/stop is same as for activity. If you have any questions or think something can be done better, please use “Contact Developer” link. Thanks, G

Craig Drury
September 22, 2020 | Version 0.0.30

Really good app... I use it for running HIIT session. Lots of short intervals 20s when I programme that in to a workout my FR645 spends most of the time stuck on he ping screens. This app does a great job of swapping quickly giving feedback for when you are about to change between efforts and rest. Red Amber and green with hr reported during rests. Brilliant. And develop responds lightning fast to queries. Even user error.. ;-)

Tony Dellow
August 8, 2020 | Version 0.0.27

This is the ultimate interval timer in my view. Being able to programme it on the phone with an easy to use form is such a great feature. It’s been the end of my Gymboss!

Thomas Casson
July 30, 2020 | Version 0.0.26

Had initial issues, but these were quickly resolved. Really good and useful app.

Cristian L
July 16, 2020 | Version 0.0.21

Best HIIT app!

Monika FiTunstall
July 14, 2020 | Version 0.0.20

I tried to use for workout but it didnt vibrate when done with interval and rest. I wouldnt know when to pause for rest and start interval. Zero

Developer Reply
July 14, 2020, GDCSoft

Hi Monica, Please use “Contact Developer” link for bug reports so that I can investigate and fix them. Please let me know: 1. What device you saw this on? 2. What settings you were using? 3. What your notification preference in settings was set to? As this is the first report like this in nearly 7000 downloads, it doesn’t seem to be a common problem. G

Cris Claessens
July 12, 2020 | Version 0.0.20

100% good app, thanks to the Developer, i will make a donation soon. 1/ vocal support is continuing counting? Exercise 1-7 OK, but next set 8, 9,...? Better restart count? 2/ vocal support comes after the exercise? Better before? 3/ option for split reminder in middle of exercise if you need 2 sides Thanks again!!

Developer Reply
July 12, 2020, GDCSoft

Thanks Cris, 3/ is an easy change - I’ll try to get it in as an option for next build. Not clear about the other two. For 1/ are you saying you want the count to be across all sets? So if you had three sets of seven, each interval would be numbered out of 21 rather than 7? For 2/ I think you mean the notifications? They were requested to play down 3,2,1 change to prepare people for the transition. Changing them is easy, but not sure what’s needed! G

June 27, 2020 | Version 0.0.19

Super app. Mais les mises à jours sont longues et contraignantes. Deux en deux jours. Je pers un temps fou à cause de ça. Mon timing est déjà serré !!!! Mise à jour automatique Serait la bienvenue !

Developer Reply
June 28, 2020, GDCSoft

Mes sincères excuses! La première était une mise à jour automatique de Garmin lors de l'introduction de nouvelles montres. La seconde était que j'ajoutais des montres que la mise à jour automatique de Garmin avait manquées. Je vais essayer de limiter la fréquence des mises à jour à partir de maintenant. Cdt, G

June 23, 2020 | Version 0.0.18

This app is what i needed, works super good and very easy to use. Useful to pretty much every type of workout I do. The fact that I can save HIIT-times is very useful and if you need a another one just grab you phone and make a new one in connectID. My favorite app on my forerunner 735xt.

June 17, 2020 | Version 0.0.16

Super, mais manque un petit tuto pour expliquer les champs à remplir (groupes, repos entre séries, etc...) Serait utile pour les novices....

Developer Reply
June 18, 2020, GDCSoft

Merci pour votre avis et votre suggestion. Je vais essayer de trouver un bon format pour un tutoriel. Cdt, G

June 15, 2020 | Version 0.0.16

Brilliant app!! Simple,easy to use and effective. Had an issue with the previous version and as soon as I contacted the developer he got straight on it and sorted the app out. Worth every bit of donation!