Comparison

Interval Timer vs Evolution Barbell

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

Head to head
About

Interval Timer

This app helps you manage workout intervals with customizable work and rest periods. It runs in the background and allows music playback, with options to save settings and share progress. Integrates with Apple Health for heart rate monitoring.

Highlights
  • Customizable sets, intervals, and rest times
  • Runs in background and with screen locked
  • Music playlist integration
  • Save settings as templates
  • Apple Health integration for heart rate
  • Post workouts to social media
Features
Read full description

***Free and reliable. Perfect for use at home, at the track or in the gym. We’re proud to introduce this handy little app that helps you keep track of your work and rest periods during workouts. Whether your into cycling, running, lifting weights, exercise, workout, stretching, boxing, MMA or HIT, this interval timer will prove to be an invaluable asset to you. Running foreground, background or with device locked, this reliable app allows you specify an overall time as well as program High/Low intensity interval and rest time between sets. Produced by Polycents! Key Features: - Customizable sets, high/low intensity interval and rest for your own need - Retina display, iOS4 and multitasking - Continue to run even when screen is locked - Play your song or playlist during your workout - Post your workout to Facebook or Twitter - Save settings as templates Customizable Features: - Number of Sets - Countdown Time - Set Time - Low Interval time - High Interval time - Rest Time - First Interval (low or high) - Sound Volume - Timer Sounds - Auto Lock - Vibrate - Pause during Rest - Playlist - New Each Set APPLE HEALTH: -Interval Timer can use Apple Health to show heart rate in Apple Watch App. # Subscription Details # - Monthly and annual subscriptions are available. - Payment will be charged to your iTunes account at confirmation of purchase. - Your subscription will automatically renew unless auto-renew is disabled at least 24 hours before the end of the current subscription period. - Automatic renewals will be charged at the same price you were originally charged for the subscription. - Subscriptions can be managed by going to Account Settings on the App Store after purchase. Terms of Use: https://www.iubenda.com/terms-and-conditions/18915396 Privacy Policy: https://www.iubenda.com/privacy-policy/18915396

About

Evolution Barbell

Access personalized workout programs and track your fitness journey. Monitor workouts, nutrition, habits, and measurements with guidance from your coach. Connect with communities and earn badges for achievements.

Highlights
  • Access training plans and track workouts
  • Follow exercise and workout videos
  • Track meals and make better food choices
  • Monitor daily habits and progress
  • Message your coach in real-time
  • Connect with digital communities
  • Track body measurements and progress photos
Features
Read full description

With the Evolution Barbell App, you will have access to workout programs designed specifically to help you reach your fitness and health goals! You can follow & track your workouts, your nutrition, your lifestyle habits, measurements and results–all with the help of your coach. FEATURES: - Access training plans and track workouts - Follow along to exercise and workout videos - Track your meals and make better food choices - Stay on top of your daily habits - Set health and fitness goals and track progress towards your goals - Gain milestone badges for achieving new personal bests and maintaining habit streaks - Message your coach in real-time - Be part of digital communities to meet people with similar health goals and stay motivated - Track body measurements and take progress photos - Get push notification reminders for scheduled workouts and activities - Connect your Apple Watch to track workouts, steps, habits, and more right from your wrist - Connect to other wearable devices and apps like the Apple Health App, Garmin, Fitbit, MyFitnessPal, and Withings devices to track workouts, sleep, nutrition, and body stats and composition Download the app today!

Screenshots

Interval Timer4 screens
Evolution Barbell4 screens

Verdict

The call

The clearest difference is rating: Evolution Barbell at 5.0 against Interval Timer's 4.5. Evolution Barbell also leads on in-app purchases (none vs 8) and ads (none vs shown). Interval Timer's advantage is update cadence (every 9 days vs every 2 months) and ratings volume (19K vs 17). On price 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. Interval Timer sells 6 in-app purchases, starting at $0.99 per month. Evolution Barbell asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Evolution Barbell holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Interval Timer has 19K ratings behind it against 17, so its average is the more settled of the two.

UpkeepUpdate frequency

Interval Timer ships an update every 9 days, Evolution Barbell every 2 months. The most recent releases landed on November 7, 2026 and November 3, 2026 respectively.

Scorecard7 real differences · 3 level
Interval Timer versus Evolution Barbell: the parameters behind the verdict, then further details
ParameterInterval TimerEvolution Barbell
PriceFreeFree
Rating4.5 (19K ratings)5.0 (17 ratings) — better
Positive reviews72.9% of reviews—
Number of ratings19K — better17
Update frequencyEvery 9 days — betterEvery 2 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod, Apple WatchiPhone, iPad, iPod, Apple Watch
Requires iOS13.0 — better15.5
Further details — not scored
Size143 MB184 MB
Age rating4+4+
DeveloperNEO PIXEL LABS PTE. LTD.Evolution Barbell LLC

Customer experience

Interval Timer

All ratings19,032 ratings
Positive88.4%
Neutral3.3%
Negative8.3%
Written reviews1,597 reviews
Positive72.9%
Neutral5.8%
Negative21.4%

Evolution Barbell

All ratings17 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Interval Timer

Reported bugs

3 issues
  • Ads block functionality
  • App freezes or crashes
  • Timer doesn't work in background

Requested features

5 requests
  • Add notes to workouts
  • Provide workout history and analytics
  • Allow syncing with Apple Health
  • Improve Apple Watch integration
  • Add more customization options

Evolution Barbell

Not enough reviews yet to summarise bugs or requests.

In-app purchases

6 purchases

Interval Timer

Subscriptions6
  • Plus - 1 Month$0.991 Month
  • Premium - 1 Month$1.991 Month
  • Plus - 1 Month$1.991 Month
Show 3 more
  • Premium - 1 Month$2.991 Month
  • Plus - 1 Year2 variants$4.991 Year
  • Premium - 1 Year7 Days trial2 variants$9.991 Year
None

Evolution Barbell

No in-app purchases

Questions

Is Interval Timer free?
Interval Timer is free to download, with in-app purchases available.
Is Evolution Barbell free?
Evolution Barbell is free to download, with no in-app purchases.
Which has better reviews, Interval Timer or Evolution Barbell?
Evolution Barbell is rated higher. Interval Timer averages 4.5 out of 5 from 19K ratings, while Evolution Barbell averages 5.0 from 17 ratings.
Do Interval Timer or Evolution Barbell have ads?
Interval Timer shows ads; Evolution Barbell does not.
Which is updated more often, Interval Timer or Evolution Barbell?
Interval Timer ships an update every 9 days, and Evolution Barbell every 2 months. Most recently, Interval Timer was updated on November 7, 2026 and Evolution Barbell on November 3, 2026.

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