Comparison

GymFit vs HIIT Workout Timer by Zafapp

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

Head to head
About

GymFit

This app helps experienced gym-goers optimize their workouts by providing customizable interval timers. It allows users to create, save, and edit workout routines, track progress, and manage time efficiently to maximize productivity during gym sessions.

Highlights
  • Create customizable workouts
  • Add unlimited intervals
  • Edit and rearrange intervals
  • Save custom workout routines
  • Integrates with Apple HealthKit
  • Easy-to-use interface
Features
Read full description

Intervals Workout Timer is designed for intelligent, efficient, and hard-working individuals who are seasoned in the gym. We're not here for beginners. The app helps you manage time and follow workout circuits easily. Manage Time Easily - Do you hate it when you plan on going to the gym for a quick 30-45-minute workout and you don't end up leaving for another hour or two? How about when a group is spending their time talking over the bench that YOU'RE waiting on using? No need to waste time or wait anymore! Improve Gym Workouts - Intervals is designed to get you in and out of the gym, while still giving you the workout you intended. You have been to the gym plenty of times and are definitely not a beginner. You know exactly what you want to do at the gym before you show up to workout. But every time you get to your gym, you end up wasting valuable time that you could be spending elsewhere. 
Features of Intervals Workout Timer: CREATE WORKOUTS: - Create workouts that are fully customizable. Save the intervals in your device so you only need to build your workout once! Add as many workouts as you want and set different timers for every workout to manage time and exercise easily. ADD INTERVALS: - Add as many intervals as you want to your workout so that you can maximize the productivity of your workout! No need to stop between exercises to figure out what to do next as this feature will enable you to keep a track of your progress, view remaining time as well as get a clue on what to do next. EDIT WORKOUTS: - Each interval is completely customizable and editable. All you need to do is create a chart and figure out the best workout course. You can create and edit as many workouts as you want.Edit the name, time, and assign a color so that it's easier for you to recognize during training. Eliminate distractions and clutter so you can focus on more important things like finishing your sets CUSTOMIZE YOUR CIRCUIT: - Are you planning on switching to a new workout routine to reach your next fitness goal? How about doing multiple workouts in a single day? By using this app, you can customize your circuits easily. Customize your circuit by editing, rearranging or deleting any interval that seems out of place! EASY TO USE: - The Intervals Workout Timer is very easy to us – all thanks to its simple and easy UI/UX. The app offers clear menus and options to navigate to the right feature and customize it accordingly. Enjoy smooth controls and seamless performance as you create new plans and enjoy your workouts. APPLE HEALTH KIT - Intervals Workout Timer is now integrated with Apple HealthKit. This gives you the ability to receive credit for workouts you complete with Intervals, on your Apple Activity rings. It also gives you the ability to track previous workout sessions so you can more easily monitor your workout progress. Are you ready to maximize the productivity of your workout plans by learning time management? Download and use Intervals Workout Timer today! EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

HIIT Workout Timer by Zafapp

This app helps you create custom interval training routines with adjustable sets, rounds, and exercise times. It also tracks your workout history, calculates calorie burn, and integrates with Apple Watch for heart rate monitoring and workout control.

Highlights
  • Custom interval timers (HIIT, Tabata)
  • Reps and weight logging
  • Workout routine planner
  • Calorie burn calculation
  • Workout history and analysis
  • Apple Watch integration
  • Background music control
Features
Read full description

More than one trillion calories are burned using this app! INTERVAL TIMER (HIIT AND TABATA) & REPS AND WEIGHT LOGGER • Custom number of Sets and Rounds, and Exercise, Rest, Warm Up and Cool Down times • High intensitiy - Low intensity time reminders • Set Reps and Weight for each exercise (e.g. 20 squats with 25 lbs) • Text-to-speech interval change sound • Also perfect for weight lifting exercises WORKOUT ROUTINE & PLANNER • Set workout days for each workout plan • Create routines with 30+ exercises including squats, crunches and weight lifting... • Get reminders on workout day and time • Add more exercises with custom exercise naming CALORIE COUNTER & WORKOUT HISTORY • Calorie burns calcuated for each workout session • Workout history with daily, weekly, and monthly highlights • Detailed analyzes of your last workouts APPLE WATCH APP & HEART RATE MONITOR • Start and control workouts right on your watch • Monitor your heart rate coming from your Apple Watch • Log your workout history to Apple Health BACKGROUND MUSIC WITH VOLUME CONTROL • Listen and control Apple Music songs right on the app • Control background music volume (50%-100%)

Screenshots

GymFit4 screens
HIIT Workout Timer by Zafapp4 screens

Verdict

The call

GymFit and HIIT Workout Timer by Zafapp both sit at 4.6 stars, but that hides the real split: 62% of GymFit's written reviews are positive against 40% of HIIT Workout Timer by Zafapp's. HIIT Workout Timer by Zafapp's advantage is device support (4 vs 2) and iOS requirement (15.0 vs 17.0). On price, rating, ratings volume and update cadence 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. GymFit sells 12 in-app purchases, starting at $1.99 per 7 days and HIIT Workout Timer by Zafapp sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.6 for GymFit against 4.5 for HIIT Workout Timer by Zafapp. Both are backed by a comparable volume of ratings — 17 and 15 respectively. Written reviews are what separate them: 62% of GymFit's written reviews are positive against 40% of HIIT Workout Timer by Zafapp's.

UpkeepUpdate frequency

GymFit ships an update every 11 days, HIIT Workout Timer by Zafapp every 3 weeks. Both last shipped on October 24, 2026.

Scorecard3 real differences · 7 level
GymFit versus HIIT Workout Timer by Zafapp: the parameters behind the verdict, then further details
ParameterGymFitHIIT Workout Timer by Zafapp
PriceFreeFree
Rating4.6 (17 ratings) — better4.5 (15 ratings)
Positive reviews61.5% of reviews — better40.0% of reviews
Number of ratings17 — better15
Update frequencyEvery 11 days — betterEvery 3 weeks
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod, Apple Watch — better
Requires iOS17.015.0 — better
Further details — not scored
Size55 MB96 MB
Age rating4+4+
DeveloperPoutier Ventures LLCCuneyt Zafer

Customer experience

GymFit

All ratings17 ratings
Positive88.2%
Neutral5.9%
Negative5.9%
Written reviews13 reviews
Positive61.5%
Neutral7.7%
Negative30.8%

HIIT Workout Timer by Zafapp

All ratings15 ratings
Positive93.3%
Neutral0.0%
Negative6.7%
Written reviews5 reviews
Positive40.0%
Neutral0.0%
Negative60.0%

In-app purchases

12 purchases

GymFit

Subscriptions10
  • Weekly Subscription$1.997 Days
  • Monthly Subscription$4.991 Month
  • Yearly Subscription7 Days trial$19.991 Year
Show 7 more
  • Yearly Subscription3 Days trial$19.991 Year
  • Yearly Subscription3 Days trial$29.991 Year
  • Yearly Subscription7 Days trial$29.991 Year
  • Yearly Subscription$29.991 Year
  • 3 Day Trial Then Yearly Trial3 Days trial$39.991 Year
  • Week Trial Yearly Subscription7 Days trial$39.991 Year
  • Yearly Subscription$49.991 Year
One-time2
  • Remove All Ads$1.99
  • Ad & Workout Generator Bundle$2.99
3 purchases

HIIT Workout Timer by Zafapp

One-time3
  • Pro Version$1.99
  • Pro Version$10.99
  • Pro Version$11.99

Questions

Is GymFit free?
GymFit is free to download, with in-app purchases available.
Is HIIT Workout Timer by Zafapp free?
HIIT Workout Timer by Zafapp is free to download, with in-app purchases available.
Which has better reviews, GymFit or HIIT Workout Timer by Zafapp?
GymFit is rated higher. GymFit averages 4.6 out of 5 from 17 ratings, while HIIT Workout Timer by Zafapp averages 4.5 from 15 ratings.
Do GymFit or HIIT Workout Timer by Zafapp have ads?
Both GymFit and HIIT Workout Timer by Zafapp show ads.
Which is updated more often, GymFit or HIIT Workout Timer by Zafapp?
GymFit ships an update every 11 days, and HIIT Workout Timer by Zafapp every 3 weeks. Most recently, GymFit was updated on October 24, 2026 and HIIT Workout Timer by Zafapp on October 24, 2026.

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