Comparison

Interval Timer Plus 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 Plus

This versatile timer app offers a simple yet powerful way to manage timed activities. Customize multiple intervals with individual colors and sounds, and save them as presets for quick access. It's designed for ease of use and visibility, even from a distance, and works seamlessly in the background.

Highlights
  • Customizable intervals
  • Named intervals with voice readout
  • Individual colors and sounds
  • Count time or repetitions
  • Unlimited presets
  • Works in background
  • Full screen color coding
Features
Read full description

Free, simple and easy to use all purpose Interval Timer SIMPLE AND FREE INTERVAL TIMER + 1-Tap Quickstart + No signup required, download and get going immediately GLANCEABLE + Very Big Fonts, visible from everywhere + Full screen color coding, works like a traffic light right in front of you + Portrait or landscape, always uses the full screen space POWERFUL ADVANCED PRESETS + Multiple intervals, each individually customizable + Name your intervals and have Interval Timer read it out to you + Individual colors and sounds + Count time or repetitions + Unlimited amount of presets ACCESSIBLE + Works with locked screen or while in another app + Reads out the interval name, so you know exactly what’s on + Vibration or silent mode, for the times when you need to tune it down + Works great with headphones and your own music + Supports dark and light mode REPEAT YOUR ROUTINE + Prepare and save your settings in presets + Pick your presets and start with just 1-tap OPTIMIZE ALL OF YOUR ACTIVITIES + Tabata timer + HIIT training + Crossfit + Circuit training + Fitness routines + Home workouts + Boxing round timer + Calisthenics circuit timer

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 Timer Plus4 screens
Interval(x)3 screens

Verdict

The call

The clearest difference is in-app purchases: Interval(x) at none against Interval Timer Plus's 1. Interval(x) also leads on update cadence (every 10 days vs every 2 months). Interval Timer Plus's advantage is ratings volume (6.2K vs 1) and device support (4 vs 2). On price, rating and ads 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 Plus sells 1 one-off in-app purchase. 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 Plus against 5.0 for Interval(x). That said, the two scores are not equally well evidenced: Interval Timer Plus has 6.2K ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Interval Timer Plus ships an update every 2 months, Interval(x) every 10 days. The most recent releases landed on October 5, 2026 and September 18, 2026 respectively.

Scorecard6 real differences · 4 level
Interval Timer Plus versus Interval(x): the parameters behind the verdict, then further details
ParameterInterval Timer PlusInterval(x)
PriceFreeFree
Rating4.9 (6.2K ratings)5.0 (1 ratings) — better
Positive reviews95.0% of reviews—
Number of ratings6.2K — better1
Update frequencyEvery 2 monthsEvery 10 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad
Requires iOS15.0 — better18.1
Further details — not scored
Size24 MB2 MB
Age rating4+4+
DeveloperSu-Au HwangShapeHaven Innovations LLC

Customer experience

Interval Timer Plus

All ratings6,181 ratings
Positive97.5%
Neutral1.1%
Negative1.4%
Written reviews665 reviews
Positive95.0%
Neutral2.3%
Negative2.7%

Interval(x)

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

Bugs and requests

Interval Timer Plus

Reported bugs

1 issue
  • Audio alerts not working when app is in the background

Requested features

2 requests
  • Support for Apple Watch integration
  • Ability to delete saved workouts

Interval(x)

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Interval Timer Plus

One-time1
  • Remove Ads$2.99
None

Interval(x)

No in-app purchases

Questions

Is Interval Timer Plus free?
Interval Timer Plus 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 Plus or Interval(x)?
Interval(x) is rated higher. Interval Timer Plus averages 4.9 out of 5 from 6.2K ratings, while Interval(x) averages 5.0 from 1 ratings.
Do Interval Timer Plus or Interval(x) have ads?
Neither Interval Timer Plus nor Interval(x) shows ads.
Which is updated more often, Interval Timer Plus or Interval(x)?
Interval Timer Plus ships an update every 2 months, and Interval(x) every 10 days. Most recently, Interval Timer Plus was updated on October 5, 2026 and Interval(x) on September 18, 2026.

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