Comparison

Interval Timer vs StrengthTempo

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

StrengthTempo

Features
Read full description

StrengthTempo is a focused strength training timer built for lifters who care about rhythm, control, and consistency. StrengthTempo now supports more languages and lets you share completed workouts as images, making it easier to use, save, and share your training progress. Set precise timing for every rep phase, follow your workout with clear cues, and keep your training organized with an action library, training setups, and cycles that are easy to manage. Whether you are working on better form, stricter tempo, or more repeatable sessions, StrengthTempo helps you stay locked in from the first rep to the last. What makes StrengthTempo different StrengthTempo is designed for real lifting sessions, not for endless setup. It gives you the structure you need to train with intent while keeping the interface fast, simple, and gym-friendly. Use it to: Set exact rep tempo for eccentric, pause, and concentric phases Build and organize your action library Create training setups for different sessions Arrange cycles so you know what to train each day Run focused sessions with clear timing cues Review completed workouts and recent training history Key features Precise tempo control Create custom tempo settings for each lift so every rep is more controlled, consistent, and repeatable. Action library, training, and cycles Keep your lifting organized with reusable actions, structured training setups, and cycles that help you stay on plan. Session-first training flow Start quickly, manage your session clearly, and move through each lift without unnecessary friction. Optional haptics and sound cues Stay on tempo without staring at the screen. Use haptics and light audio cues for phase changes when you want extra guidance. Workout history Look back at recent sessions and track what you trained. Offline-first, with optional sync Use the app fully offline, with optional iCloud sync when you want your data available across devices. Built for focused lifters StrengthTempo is made for lifters who want cleaner reps, better rhythm, and a more structured training flow. If tempo matters to your training, this app is built for you. Train with purpose. Move with rhythm. Make every rep count. EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Interval Timer4 screens
StrengthTempo3 screens

Verdict

The call

The clearest difference is ads: StrengthTempo at none against Interval Timer's shown. Interval Timer's advantage is update cadence (every 9 days vs every 3 weeks) and device support (4 vs 2). On price and in-app purchases 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 and StrengthTempo sells 4 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Interval Timer ships an update every 9 days, StrengthTempo every 3 weeks. The most recent releases landed on October 13, 2026 and September 28, 2026 respectively.

Scorecard4 real differences · 6 level
Interval Timer versus StrengthTempo: the parameters behind the verdict, then further details
ParameterInterval TimerStrengthTempo
PriceFreeFree
Rating4.5 (19K ratings) — better—
Positive reviews72.9% of reviews—
Number of ratings19K — better—
Update frequencyEvery 9 days — betterEvery 3 weeks
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad
Requires iOS13.0 — better18.6
Further details — not scored
Size143 MB13 MB
Age rating4+4+
DeveloperNEO PIXEL LABS PTE. LTD.小雨 李

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

StrengthTempo

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
4 purchases

StrengthTempo

Subscriptions3
  • StrengthTempo Pro Monthly$3.991 Month
  • StrengthTempo Pro Quarterly$9.993 Months
  • StrengthTempo Pro Annual$29.991 Year
One-time1
  • StrengthTempo Pro Lifetime$79.99

Questions

Is Interval Timer free?
Interval Timer is free to download, with in-app purchases available.
Is StrengthTempo free?
StrengthTempo is free to download, with in-app purchases available.
Do Interval Timer or StrengthTempo have ads?
Interval Timer shows ads; StrengthTempo does not.
Which is updated more often, Interval Timer or StrengthTempo?
Interval Timer ships an update every 9 days, and StrengthTempo every 3 weeks. Most recently, Interval Timer was updated on October 13, 2026 and StrengthTempo on September 28, 2026.

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