Comparison

Interval Timer vs Functional Wiehl GmbH

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 provides a customizable interval timer for various training routines, including HIIT and Tabata. Easily set up custom workouts, track your progress, and stay motivated with visual cues and audio notifications. It's suitable for a wide range of activities from fitness to productivity.

Highlights
  • Customizable workout setup
  • Progress tracking with calendar
  • Saveable custom presets
  • Color-coded notifications
  • Listen to music/audiobooks
  • Large, full-screen display
  • Widget for easy access
Features
Read full description

Interval Timer: Tabata and HIIT is a customizable timer for sports. Use it for High-intensity interval training and workout. It's a free sports interval timer app that makes it easy to create your custom training routine. Use it as your timer for training or exercise. This sports timer is great for crossfit, fitness and running. The sports timer will also be useful for various activities such as crossfit, jogging, boxing,circuit training,breathing exercises and yoga. You can use this circuit timer as a productivity timer to focus on your work tasks. Key features: Setup workout Tracking your progress Customizable presets Notifications & colors Motivation Listening music or books Huge digits Widget SETUP WORKOUT Set up, edit and save your own workouts with the customizable feature. Add as many intervals as you like. You can add a 10 second rest period and a 20 second work period, as well as a 5 second interval between exercises. TRACKING PROGRESS Track your workouts with a Calendar. Plan and track events, and get notified when you have a training scheduled. With this feature, you will not miss a single workout and will keep track of your progress. CUSTOMIZABLE PRESETS Save your workouts in the presets section. It's also possible to create your own custom intervals. You can add an unlimited number of presets. NOTIFICATIONS & COLORS Each training phase is easy to distinguish by a different color and is initiated by an individually adjustable signal (sound, vibration, voice) MOTIVATION Each completed exercise motivates you to achieve higher goals. Enjoy your training and achieve your fitness goals with the interval timer. LISTENING MUSIC Listen to motivational audiobooks or your favorite music and get inspired and energized. Full screen color coded display is easy to read from a distance. Widget helps you train without being distracted by the constant unlocking of your phone. Interval Timer: Tabata and HIIT is an easy to use sports workout timer for your daily fitness training at home, at the gym or everywhere else.

About

Functional Wiehl GmbH

Features
Read full description

Functional Wiehl – Dein persönlicher Fitness-Tracker für funktionelles Training. Tracke deine Workouts, verfolge deinen Fortschritt und erreiche deine Fitnessziele. Functional Wiehl bietet dir: - Workout-Tracking: Erfasse deine Trainingseinheiten schnell und einfach - Übungsbibliothek: Große Auswahl an funktionellen Übungen mit Beschreibungen - Fortschrittsverfolgung: Verfolge deine Entwicklung mit übersichtlichen Statistiken - Trainingsplanung: Erstelle individuelle Trainingspläne - Push-Benachrichtigungen: Lass dich an dein Training erinnern Ob Anfänger oder Fortgeschrittener – Functional Wiehl unterstützt dich auf deinem Weg zu mehr Fitness und Gesundheit. Die App wurde speziell für funktionelles Training entwickelt und hilft dir, dein Training strukturiert und effektiv zu gestalten. Starte jetzt und werde die beste Version von dir selbst!

Screenshots

Interval Timer4 screens
Functional Wiehl GmbH4 screens

Verdict

The call

The clearest difference is in-app purchases: Functional Wiehl GmbH at none against Interval Timer's 10. Functional Wiehl GmbH also leads on ads (none vs shown) and update cadence (weekly vs monthly). Interval Timer's advantage is device support (4 vs 2). On price and iOS requirement 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 10 in-app purchases, starting at $2.09 per month. Functional Wiehl GmbH asks for nothing beyond the download.

UpkeepUpdate frequency

Interval Timer ships an update monthly, Functional Wiehl GmbH weekly. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

Scorecard4 real differences · 6 level
Interval Timer versus Functional Wiehl GmbH: the parameters behind the verdict, then further details
ParameterInterval TimerFunctional Wiehl GmbH
PriceFreeFree
Rating4.9 (391 ratings) — better—
Positive reviews96.6% of reviews—
Number of ratings391 — better—
Update frequencyMonthlyWeekly — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad
Requires iOS15.0 — better16.0
Further details — not scored
Size112 MB24 MB
Age rating4+4+
DeveloperSimpleInnovation LLCDENNIS SASSE

Bugs and requests

Interval Timer

Reported bugs

2 issues
  • Occasional app crashes
  • Compatibility issues with older devices

Requested features

3 requests
  • More pre-designed workout routines
  • Ability to name and customize exercises
  • Option to adjust countdown time between intervals

Functional Wiehl GmbH

Not enough reviews yet to summarise bugs or requests.

In-app purchases

10 purchases

Interval Timer

Subscriptions7
  • Timer PRO for 1 month: 30% OFF7 Days trial$2.091 Month
  • Timer PRO for 1 month: 25% OFF7 Days trial$2.291 Month
  • Interval Timer PRO for 1 month$2.991 Month
Show 4 more
  • Interval Timer PRO for 1 month7 Days trial$2.991 Month
  • Interval Timer PRO - 30% OFF7 Days trial$15.001 Year
  • Interval Timer PRO for 1 year$21.991 Year
  • Tabata Timer PRO for 1 year7 Days trial$21.991 Year
One-time3
  • Interval Timer - no Ads$2.99
  • HIIT Timer PRO Forever 30% OFF$27.99
  • Exercise Timer PRO Forever$39.99
None

Functional Wiehl GmbH

No in-app purchases

Questions

Is Interval Timer free?
Interval Timer is free to download, with in-app purchases available.
Is Functional Wiehl GmbH free?
Functional Wiehl GmbH is free to download, with no in-app purchases.
Do Interval Timer or Functional Wiehl GmbH have ads?
Interval Timer shows ads; Functional Wiehl GmbH does not.
Which is updated more often, Interval Timer or Functional Wiehl GmbH?
Interval Timer ships an update monthly, and Functional Wiehl GmbH weekly. Most recently, Interval Timer was updated on November 3, 2026 and Functional Wiehl GmbH on October 31, 2026.

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