Comparison

Onyx Timer vs Workout Timer

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

Head to head
About

Onyx Timer

This app allows users to create and manage custom workouts combining time-based and rep-based exercises. Control your workout hands-free with voice commands and receive audio cues for each exercise. Workouts can be saved and shared, with options for visual and auditory customization.

Highlights
  • Voice-controlled timer
  • Mix time and rep-based exercises
  • Audio exercise announcements
  • Background operation
  • Workout saving and sharing
  • Customizable commands
Features
Read full description

Onyx is a talking timer app that lets you mix time-based and rep-based exercises in the same workout. Turn on listening mode to control the timer with your voice - after you're done with those pushups, simply say "next!" to go to the next exercise. Features: • Announces exercises in Siri's voice. • Customizable voice control commands for hands-free operation. • Runs in background, or with screen locked. • Listen to music while using the timer. • Optional beep and vibrate between exercises. • Workouts are saved to iCloud, or locally if iCloud is disabled. • Swipe screen to go forward or back. • Displays exercises as a running marquee. • Highly customizable. • Mix time-based and rep-based exercises in the same workout. • Add images and notes to exercises and color-code them. • In-depth help / operating manual. • Import and export workouts via email. • Dark and light skin.

About

Workout Timer

Design personalized fitness routines with a highly customizable interval timer. Track your progress, play your own music, and receive spoken exercise prompts. Integrates with Apple Health for detailed workout data.

Highlights
  • Customizable interval timer
  • Create custom workout routines
  • Play background music
  • Text-to-speech exercise prompts
  • Save and reuse workouts
  • Time Under Tension (TUT) tempos
  • Apple Health integration
Features
Read full description

Simple, Customizable, and Easy-to-use. Create any workout you can imagine in a matter of seconds & play your own music in the background!  Workout Timer is a fully customizable interval timer that dictates each exercise. Create as many different sets as you want and how many rounds you want to do them for. Great in the gym, at home, or outdoors. Whether you're creating your own HIIT routine or lifting weights in the gym, workout timer will keep you on pace! Key Features: - Play your own music in the background - Continues to work even while your screen is locked - Write in your own exercises - Reads off each exercise during the workout using text-to-speech - Save your workouts for later use - Number of Sets - Number of Exercises or Rest in each Set - Number of Rounds to repeat each Set - New: Set custom time-under-tension tempos! Great for any number of workouts, including: - Tabata - Interval Training - High Intensity Interval (HIIT) Training - Boxing round timer - Calisthenics circuit timer - Circuit training - Time Under Tension Training - Core Workouts - Cycling - Plyometrics - Weight Lifting - Cardio - Wind Sprints - Running - Jogging WORKOUT HISTORY USING APPLE HEALTH • Workout Timer has the best Apple Health integration. • Automatically sync workout time, heart rate, and calories burned to the Health App during your workouts. • Detailed stats for every interval • All your data is safely stored in Apple Health • You can enable this feature by granting the app the necessary permissions. If you wish to stop using the feature, you can easily disable the permissions in your mobile settings. .... and more! Please reach out to contact@apprebel.co for any questions/feedback / support https://www.workouttimer.com/terms-conditions https://www.workouttimer.com/privacy-policy

Screenshots

Onyx Timer4 screens
Workout Timer4 screens

Verdict

The call

The clearest difference is ads: Onyx Timer at none against Workout Timer's shown. Onyx Timer also leads on iOS requirement (7.0 vs 15.1). Workout Timer's advantage is rating (4.4 vs 4.1) and ratings volume (51 vs 16). On price, review sentiment, update cadence 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. Onyx Timer sells 1 one-off in-app purchase and Workout Timer sells 6 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Workout Timer holds the better App Store score, 4.4 against 4.1. Both are backed by a comparable volume of ratings — 16 and 51 respectively. Written reviews complicate that: 65% of Onyx Timer's written reviews are positive against 61% of Workout Timer's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Onyx Timer ships an update every 2 weeks, Workout Timer every 3 weeks. The most recent releases landed on September 30, 2026 and October 20, 2026 respectively.

Scorecard4 real differences · 6 level
Onyx Timer versus Workout Timer: the parameters behind the verdict, then further details
ParameterOnyx TimerWorkout Timer
PriceFreeFree
Rating4.1 (16 ratings)4.4 (51 ratings) — better
Positive reviews65.2% of reviews — better60.7% of reviews
Number of ratings1651 — better
Update frequencyEvery 2 weeks — betterEvery 3 weeks
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPodiPhone, iPod, Apple Watch — better
Requires iOS7.0 — better15.1
Further details — not scored
Size35 MB42 MB
Age rating4+4+
DeveloperKirill EdelmanAppRebel, Inc.

Customer experience

Onyx Timer

All ratings16 ratings
Positive75.0%
Neutral0.0%
Negative25.0%
Written reviews23 reviews
Positive65.2%
Neutral0.0%
Negative34.8%

Workout Timer

All ratings50 ratings
Positive86.0%
Neutral0.0%
Negative14.0%
Written reviews150 reviews
Positive60.7%
Neutral6.7%
Negative32.7%

Bugs and requests

Onyx Timer

Not enough reviews yet to summarise bugs or requests.

Workout Timer

Reported bugs

5 issues
  • Workouts not saving properly
  • Premium features not functioning as expected
  • Frequent crashes and freezes
  • Inconsistent behavior across devices
  • Unauthorized user issues after purchases

Requested features

5 requests
  • Ability to save unlimited workouts
  • Improved syncing and backup options
  • Integration with fitness tracking apps
  • More customization options for workouts
  • Better customer support and communication

In-app purchases

1 purchases

Onyx Timer

One-time1
  • Remove Ads$0.99
6 purchases

Workout Timer

Subscriptions3
  • Monthly Subscription$2.991 Month
  • Monthly Subscription$4.991 Month
  • Yearly Subscription$19.991 Year
One-time3
  • Premimum Version$4.99
  • Premium Version Life Time$24.99
  • Premium Version Life Time$39.99

Questions

Is Onyx Timer free?
Onyx Timer is free to download, with in-app purchases available.
Is Workout Timer free?
Workout Timer is free to download, with in-app purchases available.
Which has better reviews, Onyx Timer or Workout Timer?
Workout Timer is rated higher. Onyx Timer averages 4.1 out of 5 from 16 ratings, while Workout Timer averages 4.4 from 51 ratings.
Do Onyx Timer or Workout Timer have ads?
Workout Timer shows ads; Onyx Timer does not.
Which is updated more often, Onyx Timer or Workout Timer?
Onyx Timer ships an update every 2 weeks, and Workout Timer every 3 weeks. Most recently, Onyx Timer was updated on September 30, 2026 and Workout Timer on October 20, 2026.

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