Comparison

Interval Timer vs Interval(x)

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

Head to head
About

Interval Timer

Create personalized workout timers for HIIT, Tabata, and circuit training. Customize intervals, choose voice or beep cues, and run timers in the background with music. Includes a stopwatch and countdown timer for versatile fitness tracking.

Highlights
  • Custom interval timers
  • Voice or beep cues
  • Background operation
  • Customizable countdown
  • Stopwatch and countdown timer
  • Dark and light mode
Features
Read full description

Maximize your workout routine with our Interval Timer – the ultimate tool for creating personalized timers that cater to your fitness needs. Whether you’re doing circuit training or HIIT, our timer provides full customization options to ensure you achieve your fitness goals with ease. ◆ FEATURES ◉ Create custom interval timers ◉ Start your interval timers with just one ◉ Voice or beep sounds for every workout ◉ Customizable initial countdown ◉ Countdown timer for none-interval workouts ◉ Dedicated stopwatch ◉ Supports dark and light mode ◉ Works in the background - great with headphones and your music. ◆ SPEAKS | BEEPS Know the resting and training times with the loud voice or beep sounds. Don’t want any sounds? Choose the silent mode and watch the time on the screen by enabling prevent auto-lock feature. ◆ RUNS IN THE BACKGROUND Interval Timer can run its timers in the background allowing you to have your screen off or use other apps, and you can always access them whenever you want. We believe that eliminating restrictions and making the process smoother can deliver a much better and more cohesive experience every time. ◆ GO SIMPLE Make use of a classic stopwatch and countdown timer. Track your runs, overall workout time, PRs, and more. ► Get this interval timer to make your workouts even more effective! EULA: https://dmwizards.com/interval-timer-terms-and-conditions

About

Interval(x)

An open-source interval timer designed for precision and privacy. Configure work and rest periods with millisecond accuracy for training or daily routines. It offers a transparent, data-free experience for users who value control and simplicity.

Highlights
  • Open Source Transparency
  • Zero Data Collection
  • Millisecond Interval Precision
  • Customizable Work/Rest Periods
  • Lightweight and Power-Efficient
  • Privacy-First Design
Features
Read full description

Interval(x): Open Source Precision for Engineers Engineered for precision and transparency, Interval(x) is the ultimate interval timer for those who value control, simplicity, and privacy. Built by engineers for engineers, this app delivers unmatched timing accuracy without the frills—or the data collection. Why Engineers Love Interval(x): Open Source: Fully transparent and modifiable—because we believe in community-driven development. Zero Data Collection: Your data is yours. Interval(x) operates without tracking, analytics, or unnecessary permissions. Customizable and Precise: Configure work/rest intervals down to the millisecond to match your exact training needs. Efficient Design: Lightweight, power-efficient, and designed for those who demand performance. Privacy-First, Community-Driven Interval(x) is a privacy-focused tool that doesn't track your activity or collect your data. Its open-source codebase is available for review and contributions, ensuring transparency and trust. Whether you're training for endurance, strength, or just optimizing your daily routine, Interval(x) provides the precision and simplicity you need without sacrificing your privacy. Download Interval(x) today and experience fitness on your terms. Power your workouts with open source freedom and engineering-grade accuracy.

Screenshots

Interval Timer4 screens
Interval(x)3 screens

Verdict

The call

The clearest difference is in-app purchases: Interval(x) at none against Interval Timer's 2. Interval(x) also leads on update cadence (every 10 days vs every 3 weeks). Interval Timer's advantage is ratings volume (143 vs 1). On price, rating, 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. Interval Timer sells 2 in-app purchases, starting at $2.99 per month. Interval(x) asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.9 for Interval Timer against 5.0 for Interval(x). That said, the two scores are not equally well evidenced: Interval Timer has 143 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Interval Timer ships an update every 3 weeks, Interval(x) every 10 days. The most recent releases landed on October 20, 2026 and October 6, 2026 respectively.

Scorecard4 real differences · 6 level
Interval Timer versus Interval(x): the parameters behind the verdict, then further details
ParameterInterval TimerInterval(x)
PriceFreeFree
Rating4.9 (143 ratings)5.0 (1 ratings) — better
Positive reviews100.0% of reviews—
Number of ratings143 — better1
Update frequencyEvery 3 weeksEvery 10 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhoneiPhone, iPad — better
Requires iOS18.0 — better18.1
Further details — not scored
Size6 MB2 MB
Age rating4+4+
DeveloperDuleep MadusankaShapeHaven Innovations LLC

Customer experience

Interval Timer

All ratings142 ratings
Positive97.9%
Neutral0.7%
Negative1.4%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Interval(x)

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

Interval Timer

Subscriptions1
  • Interval Timer (Monthly)$2.991 Month
One-time1
  • Interval Timer (Lifetime)$14.99
None

Interval(x)

No in-app purchases

Questions

Is Interval Timer free?
Interval Timer is free to download, with in-app purchases available.
Is Interval(x) free?
Interval(x) is free to download, with no in-app purchases.
Which has better reviews, Interval Timer or Interval(x)?
Interval(x) is rated higher. Interval Timer averages 4.9 out of 5 from 143 ratings, while Interval(x) averages 5.0 from 1 ratings.
Do Interval Timer or Interval(x) have ads?
Neither Interval Timer nor Interval(x) shows ads.
Which is updated more often, Interval Timer or Interval(x)?
Interval Timer ships an update every 3 weeks, and Interval(x) every 10 days. Most recently, Interval Timer was updated on October 20, 2026 and Interval(x) on October 6, 2026.

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