Comparison

GymNext Flex Timer vs Mindbody Check

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

Head to head
About

GymNext Flex Timer

This app offers advanced interval training timing with customizable modes and the ability to control an external LED display. It integrates with wearables and heart rate monitors for a comprehensive workout experience.

Highlights
  • Control external LED displays
  • Multiple customizable timer modes (Tabata, EMOM, etc.)
  • Save and recall favorite workouts
  • Apple Watch control
  • Audio sync with music
  • Heart rate monitor integration
  • Control multiple LED displays
Features
Read full description

Meet the future of interval training. GymNext Flex Timer is the only timer app that combines powerful workout programming with control of large, wall-mounted LED displays—giving you the best of both worlds. Traditional gym timers rely on clunky remotes and are difficult to use. Mobile apps are flexible, but hard to see across the room. Flex Timer solves both. Build and control your workouts from your phone while displaying them on bright, easy-to-read LED screens anywhere in your gym. Perfect for HIIT, CrossFit, circuits, bootcamps, boxing, MMA, strength training, and more. Features: • Use the app on its own or connect to GymNext LED displays for maximum visibility • Core timer modes include Count Up/Down, Round, Tabata, EMOM, Mixed Intervals, and Sets with Rest • Plan your personal workouts or full classes in advance—everything ready in one tap • Share timers with athletes and trainers instantly using simple links • Save workouts to your library for quick access • Control your timer from Apple Watch—completely hands-free • Smart audio sync keeps your music and timer cues perfectly aligned • Connect multiple Bluetooth heart rate monitors and track performance in real time • Set custom heart rate zones for better training feedback • Control multiple timers across your gym at the same time • Run different workouts simultaneously for group training • Reliable Bluetooth control with no line-of-sight limitations “This will eventually become the standard for all gyms” – Garage Gym Reviews “All our coaches love the clock” – CrossFit Barrie “We love it to death” – Wolverine Strength & Conditioning Download Flex Timer and upgrade the way you train. We’re always improving. Have feedback? Reach us at support@gymnext.com

About

Mindbody Check

Streamline your business's front desk operations with a dedicated kiosk check-in solution. Allow clients to easily sign into classes with a single tap, reducing wait times and improving efficiency. This app transforms your device into a self-service station for customer check-ins.

Highlights
  • Kiosk check-in experience
  • One-tap customer check-in
  • Self-check-in kiosk functionality
  • View remaining classes per customer
Features
Read full description

Mindbody Check-In app provides Mindbody Business subscribers a kiosk check-in experience. Avoid the front desk traffic jam with one tap customer check-in. Quick Overview: - Sign your customers into class with one tap. - Turn your device into a self-check-in kiosk. - View the number of remaining classes per customer. Note: You'll need a Mindbody Business account in order to use this app.

Screenshots

GymNext Flex Timer4 screens
Mindbody Check2 screens

Verdict

The call

The clearest difference is review sentiment: GymNext Flex Timer at 72% against Mindbody Check's 15%. GymNext Flex Timer also leads on rating (4.8 vs 1.8) and ratings volume (2.2K vs 49). Mindbody Check's advantage is in-app purchases (none vs 2). On price, update cadence, ads and monetization model 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. GymNext Flex Timer sells 2 in-app purchases, starting at $8.99 per month. Mindbody Check asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

GymNext Flex Timer holds the better App Store score, 4.8 against 1.8. That said, the two scores are not equally well evidenced: GymNext Flex Timer has 2.2K ratings behind it against 49, so its average is the more settled of the two. Written reviews point the same way: 72% of GymNext Flex Timer's written reviews are positive against 15% of Mindbody Check's.

UpkeepUpdate frequency

GymNext Flex Timer ships an update every 3 weeks, Mindbody Check monthly. The most recent releases landed on October 26, 2026 and October 22, 2026 respectively.

Scorecard6 real differences · 4 level
GymNext Flex Timer versus Mindbody Check: the parameters behind the verdict, then further details
ParameterGymNext Flex TimerMindbody Check
PriceFreeFree
Rating4.8 (2.2K ratings) — better1.8 (49 ratings)
Positive reviews71.7% of reviews — better14.6% of reviews
Number of ratings2.2K — better49
Update frequencyEvery 3 weeks — betterMonthly
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreeFree
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad
Requires iOS15.0 — better18.0
Further details — not scored
Size185 MB20 MB
Age rating4+4+
DeveloperHomick EnterprisesMINDBODY Inc.

Customer experience

GymNext Flex Timer

All ratings2,119 ratings
Positive96.6%
Neutral1.1%
Negative2.4%
Written reviews173 reviews
Positive71.7%
Neutral6.4%
Negative22.0%

Mindbody Check

All ratings49 ratings
Positive18.4%
Neutral6.1%
Negative75.5%
Written reviews48 reviews
Positive14.6%
Neutral10.4%
Negative75.0%

User reviews

GymNext Flex Timer

From 2.2K App Store ratings

What we love

  • 🚀 Versatile and customizable
  • 👍 User-friendly interface
  • 🔔 Reliable and consistent
  • 💪 Excellent for interval training
  • 🔊 Clear audio cues

Room to improve

  • 🐛 Audio cues sometimes stop working
  • 🔊 Lack of volume control
  • 🔍 Detailed instructions needed for beginners
  • ⏱️ Delayed countdown between phone and timer

Mindbody Check

From 49 App Store ratings

What we love

  • 👍 Super Convenient for check-ins
  • 👍 Great for class check-in
  • 👍 Saves client time
  • 👍 User friendly for clients
  • 👍 Functional for basic check-in

Room to improve

  • 🐛 App crashes frequently
  • 🐛 Login issues persist
  • 🐛 Incompatible with older devices
  • 🐛 App not working after updates
  • 🐛 Drains battery significantly

Bugs and requests

GymNext Flex Timer

Reported bugs

2 issues
  • Saved timers not consistently loading
  • Segmented timers not saving properly

Requested features

4 requests
  • Watch app integration for remote control
  • Background audio playback when app is closed
  • Customizable voice options
  • Lap timer functionality

Mindbody Check

Reported bugs

24 issues
  • Crashes daily
  • Signs out every time
  • Keeps taking back to sign in page
  • Cannot sign in
  • App not working
Show 19 more
  • Won't let me sign in
  • Update is a dud
  • No longer works
  • Does not save passwords
  • Tap on it and nothing happens
  • Does not work
  • Won't load on iPad
  • New update does not work
  • Says no classes on schedule but there are classes
  • iPad version won't load
  • App locked on old email
  • Cream colored screen, nothing else happens
  • Nothing loads after sign in
  • Will not load at all
  • Cannot log in properly to book classes
  • New update made app worthless
  • App cannot find my business
  • Login screen doesn't always let you login
  • Login crashes

Requested features

9 requests
  • Allow check-in for appointments
  • Kiosk app for arrivals
  • More capabilities to justify iOS requirement
  • Dark mode or power saver mode
  • More accessibility to different settings
Show 4 more
  • Ability to add new clients
  • Show full names for easier identification
  • Way to sell packages
  • Sign in with key tags

In-app purchases

2 purchases

GymNext Flex Timer

Subscriptions2
  • Flex Timer Pro Monthly7 Days trial$8.991 Month
  • Flex Timer Pro Yearly1 Month trial$79.991 Year
None

Mindbody Check

No in-app purchases

Questions

Is GymNext Flex Timer free?
GymNext Flex Timer is free to download, with in-app purchases available.
Is Mindbody Check free?
Mindbody Check is free to download, with no in-app purchases.
Which has better reviews, GymNext Flex Timer or Mindbody Check?
GymNext Flex Timer is rated higher. GymNext Flex Timer averages 4.8 out of 5 from 2.2K ratings, while Mindbody Check averages 1.8 from 49 ratings.
Do GymNext Flex Timer or Mindbody Check have ads?
Neither GymNext Flex Timer nor Mindbody Check shows ads.
Which is updated more often, GymNext Flex Timer or Mindbody Check?
GymNext Flex Timer ships an update every 3 weeks, and Mindbody Check monthly. Most recently, GymNext Flex Timer was updated on October 26, 2026 and Mindbody Check on October 22, 2026.

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