Comparison

Ultra Intervals Workout Timer vs Kettlebell Home Workout

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Ultra Intervals Workout Timer

Create and customize interval training routines with simple text input. This app guides you through workouts with spoken cues, sound alerts, and large visual displays, allowing you to focus on your exercise. It supports various training styles like HIIT and Tabata, and can even manage music playback during sessions.

Highlights
  • Create custom interval workouts using plain text
  • Spoken exercise names, times, and notifications
  • Customizable sound cues and visual displays
  • Support for HIIT, Tabata, and circuit training
  • Mix timed and non-timed workout sections
  • Music ducking for notifications
  • Pre-loaded sample workouts
Features
Read full description

Define basic interval timers and custom interval workouts with ease:  Write the workout as plain understandable text and save it, launch the timer and start exercising! As an example, basic 'Tabata' interval timer can be defined by just typing this text: 8x 00:20 Work hard! 00:10 Rest Type those three lines in the text editor, save the file and launch the timer, then do your workout assisted by big display texts, spoken audio, sound cues and more. 8 rounds of 20 seconds of work, 10 seconds rest! Same way you can define more complex workouts, with multiple interval sections consisting of any number of exercises. Check out the screenshots! Running, cycling, kettlebells,..., yoga: Ultra Intervals speaks the exercise names and custom notifications as you define, being capable of guiding you through a full workout with 'phone in your pocket' mode - just *listen* to the instructions and focus on the workout. No need to see the device screen at all. Ultra Timer supports 20+ languages (most languages supporting the iOS text-to-speech functionality are supported). Intervals, HIIT, Tabata, Circuit...equally easy to set up. Customise each workout separately: Choose if you want to have the interval names and notifications spoken or rather have the timer beep instead. Customise colours as you like, all the way to having each exercise step shown with a different colour. Mix timed and non-timed sections in one workout: Ultra Intervals can also guide you through your gym workout or weight training, timing just the breaks and rest periods acting as your set coach. Play music with your favourite music player. Ultra Intervals 'ducks' the music during spoken notifications and brings the volume back on ones audio cue has ended. ULTRA INTERVALS FEATURES: CREATE AND EDIT WORKOUTS WITH EASE Type your workouts in as text plain text, following just few super simple rules. Since the workouts are defined as text, they can be edited on a Mac or PC and imported from cloud services. SPEAKS EXERCISE NAMES, TIMES AND NOTIFICATIONS. AND IT BEEPS TOO. Speaks exercise names, times and custom notifications as you define (or you can turn speech off altogether). You can customize the notifications as you like. Choose between various 'beep' sounds or turn them off as well. SAMPLE WORKOUTS - USE AS SUCH OR AS TEMPLATES Comes with plenty of example workouts and timers which can be used as such or as templates for new ones. Copying a workout file can be done with one swipe & tap. MULTIPLE SECTIONS IN ONE WORKOUT You can define multiple interval sections in one workout. Again, super easily - see the App Store screenshots to get the idea how simple this is! CLEAR DISPLAYS READABLE FROM AFAR Large animated display of time, current and up-next workout steps. Big text you can truly read from afar. CUSTOM NOTIFICATIONS WITH 'TOKENS' Define custom notification messages spoken during the workout, use 'tokens' in the notifications, for example referring to name of the current or the next exercise, time of the next exercise, time remaining of current exercise, interval round number, heart rate and more. MIX TIMED AND NON-TIMED WORKOUT STEPS Following a simple rule (just add the '&' character in the exercise name!), you can make the timer pause automatically for a 'manual' step in your workout and then with one tap restart for the rest period. RUNS IN THE BACKGROUND You can lock the screen, put the phone in the pocket and do the workout guided by the spoken audio instructions. IMPORT, COPY, EXPORT WORKOUTS Straightforward one-step functionality for importing text files from the cloud, copying files and exporting to cloud, email and more. MUSIC Allows you to listen to music during the workout, lowers the music volume for spoken audio. CUSTOMIZABLE FEATURES (CAN BE SET FOR EACH WORKOUT SEPARATELY) For *example*: Language spoken, silent mode, speech/beeps in use, speech/beeps options, countdown time, HR monitor in use, colors and many many more!

About

Kettlebell Home Workout

This app provides guided kettlebell workouts to help you build muscle and gain strength. It includes preset training plans, illustrated exercises, voice feedback, and detailed workout history. Achieve a beautiful, fit body and strong muscles with this comprehensive fitness tool.

Highlights
  • Preset training plans
  • Illustrated exercises
  • Voice feedback
  • Detailed workout history
  • Apple Health integration
Features
Read full description

Build muscle and gain strength with kettlebell workout. Download the app and get everything you need: • Preset training plan • Illustrated exercises for each muscle group • Voice feedback • Detailed history • Beautiful, fit body and strong muscles • Integration with Apple Health Tips: Select a weight that you're comfortable with. Only increase the weight when a set starts to feel as though it's not challenging you anymore. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Ultra Intervals Workout Timer4 screens
Kettlebell Home Workout4 screens

Verdict

The call

The clearest difference is in-app purchases: Ultra Intervals Workout Timer at none against Kettlebell Home Workout's 5. Ultra Intervals Workout Timer also leads on update cadence (every 6 days vs every 5 months) and iOS requirement (13.0 vs 16.6). Kettlebell Home Workout's advantage is ratings volume (1.7K vs 4) and rating (4.8 vs 4.5). On price, review sentiment, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Kettlebell Home Workout sells 5 in-app purchases, starting at $1.99 per month. Ultra Intervals Workout Timer asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Kettlebell Home Workout holds the better App Store score, 4.8 against 4.5. That said, the two scores are not equally well evidenced: Kettlebell Home Workout has 1.7K ratings behind it against 4, so its average is the more settled of the two. Written reviews complicate that: 89% of Ultra Intervals Workout Timer's written reviews are positive against 88% of Kettlebell Home Workout's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Ultra Intervals Workout Timer ships an update every 6 days, Kettlebell Home Workout every 5 months. The most recent releases landed on October 6, 2026 and October 27, 2026 respectively.

Scorecard6 real differences · 4 level
Ultra Intervals Workout Timer versus Kettlebell Home Workout: the parameters behind the verdict, then further details
ParameterUltra Intervals Workout TimerKettlebell Home Workout
PriceFreeFree
Rating4.5 (4 ratings)4.8 (1.7K ratings) — better
Positive reviews88.9% of reviews — better87.6% of reviews
Number of ratings41.7K — better
Update frequencyEvery 6 days — betterEvery 5 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, Apple Watch
Requires iOS13.0 — better16.6
Further details — not scored
Size9 MB47 MB
Age rating4+4+
DeveloperTapio KuusistoAxiom Mobile LLC

Customer experience

Ultra Intervals Workout Timer

All ratings4 ratings
Positive75.0%
Neutral25.0%
Negative0.0%
Written reviews9 reviews
Positive88.9%
Neutral11.1%
Negative0.0%

Kettlebell Home Workout

All ratings1,593 ratings
Positive97.0%
Neutral1.9%
Negative1.1%
Written reviews291 reviews
Positive87.6%
Neutral7.6%
Negative4.8%

Bugs and requests

Ultra Intervals Workout Timer

Not enough reviews yet to summarise bugs or requests.

Kettlebell Home Workout

Reported bugs

2 issues
  • Accidental app exits reset the workout
  • Inability to change weight used after a workout

Requested features

6 requests
  • Add Turkish get-ups and other classic kettlebell exercises
  • Option to create custom workouts
  • Ability to set rep progression
  • Warm-up and cool-down exercises
  • Pause and resume workouts
Show 1 more
  • Sync with Apple Health

In-app purchases

None

Ultra Intervals Workout Timer

No in-app purchases

5 purchases

Kettlebell Home Workout

Subscriptions2
  • Full Version$1.991 Month
  • Full Version$4.996 Months
One-time3
  • Full Version$1.99
  • Full version$4.99
  • Full version$9.99

Questions

Is Ultra Intervals Workout Timer free?
Ultra Intervals Workout Timer is free to download, with no in-app purchases.
Is Kettlebell Home Workout free?
Kettlebell Home Workout is free to download, with in-app purchases available.
Which has better reviews, Ultra Intervals Workout Timer or Kettlebell Home Workout?
Kettlebell Home Workout is rated higher. Ultra Intervals Workout Timer averages 4.5 out of 5 from 4 ratings, while Kettlebell Home Workout averages 4.8 from 1.7K ratings.
Do Ultra Intervals Workout Timer or Kettlebell Home Workout have ads?
Neither Ultra Intervals Workout Timer nor Kettlebell Home Workout shows ads.
Which is updated more often, Ultra Intervals Workout Timer or Kettlebell Home Workout?
Ultra Intervals Workout Timer ships an update every 6 days, and Kettlebell Home Workout every 5 months. Most recently, Ultra Intervals Workout Timer was updated on October 6, 2026 and Kettlebell Home Workout on October 27, 2026.

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