Comparison

Interval(x) vs Workout Tracker

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

Head to head
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.

About

Workout Tracker

Features
Read full description

Workout Timer: Simple Interval Training Made Perfect Take control of your training with Workout Timer, the interval timer designed to help you focus on your workout—not your phone. Whether you're into HIIT, Tabata, strength training, or custom routines, our timer adapts to your needs with precision and simplicity. Why Choose Workout Timer? Precision Timing: Customize work periods (5 seconds to 60 minutes) and rest intervals (5 seconds to 10 minutes) Multiple Rounds: Set up to 100 cycles for extended training sessions Clear Visual Cues: Large, high-contrast display visible from across the gym Audio Guidance: Sound alerts for interval transitions and workout completion Background Operation: Timer continues even when your phone is locked Saved Templates: Create and store your favorite workout configurations Key Features Customizable Intervals Tailor your workout and rest periods exactly as needed. From quick Tabata sessions to extended endurance training, you control the timing. Visual Progress Tracking Always know where you are in your workout with our intuitive progress indicator showing current round and total rounds at a glance. Smart Audio Cues Stay focused with distinct audio signals for interval transitions, final countdown warnings, and workout completion. Haptic Feedback Feel the vibration alerts for interval changes even when your device is in your pocket or muted. Background Mode Keep your phone locked during workouts. The timer continues running and will notify you of changes with both sound and vibration. Workout Templates Save your favorite interval configurations as named templates for quick access to your regular training routines. Distraction-Free Design Clean interface with essential controls and information presented clearly, allowing you to concentrate on your performance. Settings Customization Adjust sound volume, vibration intensity, and enable screen-always-on functionality to match your training environment. Workout Timer is perfect for fitness enthusiasts of all levels who value efficiency and focus in their training routines. Download today and experience the difference a properly timed workout can make in your training results.

Screenshots

Interval(x)3 screens
Workout Tracker3 screens

Verdict

The call

Interval(x) and Workout Tracker are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. Neither carries in-app purchases, so what you see is what you pay.

ScorecardNo meaningful differences
Interval(x) versus Workout Tracker: the parameters behind the verdict, then further details
ParameterInterval(x)Workout Tracker
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 10 days—
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.117.6 — better
Further details — not scored
Size2 MB1 MB
Age rating4+4+
DeveloperShapeHaven Innovations LLCNuno Lopes

In-app purchases

None

Interval(x)

No in-app purchases

None

Workout Tracker

No in-app purchases

Questions

Is Interval(x) free?
Interval(x) is free to download, with no in-app purchases.
Is Workout Tracker free?
Workout Tracker is free to download, with no in-app purchases.
Do Interval(x) or Workout Tracker have ads?
Neither Interval(x) nor Workout Tracker shows ads.

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