Comparison

GymNext Flex Timer vs NASM EDGE

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

NASM EDGE

This app provides tools for personal trainers to manage clients, create custom workouts, and track progress. It also offers resources for fitness enthusiasts, including exercise videos and daily routines.

Highlights
  • Client assessment wizard
  • Custom workout creation
  • Calorie and macronutrient calculator
  • Client dashboard with progress tracking
  • Exercise video library
  • NASM CPT exam preparation tools
Features
Read full description

NASM EDGE: The Ultimate Personal Trainer App The biggest name in personal training certification brings you best in class technology to help you provide exceptional training – and superior results – for every level of client. NEW: Prepare for the NASM CPT Exam with practice questions, flashcards, and more! EDGE APP FOR PERSONAL TRAINERS: - Assessment Wizard: Take all of the guesswork out of personal trainer client assessments and perform them quickly and accurately. - Instant Custom Workouts: Create your own custom workouts inside the EDGE personal trainer app or choose from ready-to-go sessions designed by NASM experts. - Calorie & Macronutrient Calculator: Empower your personal training clients with next-level nutrition feedback and advice that’s aligned with their fitness goals. - Client Dashboard: Keep tabs on your clients with real-time performance tracking, dynamic assessments, and more – all inside the EDGE app for personal trainers. - State-of-the-art Video Library: Access and share our curated collection of exercise videos from within the EDGE personal trainer app. It includes hundreds of NASM expert approved exercises. - Pass the Test on the First Try: Get ready for the NASM CPT Exam with official NASM study tools including 600+ practice questions, 500+ flash cards and unlimited attempts on the NASM practice test. EDGE APP FOR FITNESS ENTHUSIASTS: - Easily keep track of your workouts, progress and goals. - Learn how to perform new exercises with proper form with NASM’s extensive exercise library - Keep in touch with your personal trainer via calls, messaging and more. - Start your day off right with Wake-Up Workouts: daily 7-10 minute workout routines designed by NASM’s expert personal trainers. - Get remarkable results quicker than ever before. Brought to you by the National Academy of Sports Medicine - Empowering 500,000+ Personal Trainers. - The exclusive OPTTM methodology provides a framework for success. - Over 30 years of evidence-based expertise. Note: An auto-renewing subscription is required to access the NASM Edge Trainer Plus premium features. A purchase will be applied to your account within 24 hours of purchase or the end of the trial period, if one is offered. Subscriptions will automatically renew unless canceled at least 24-hours before the end of the current period. You can cancel anytime from your Account Settings. Any unused portion of a free trial will be forfeited if you cancel a subscription. For more information, see our Terms and Conditions and Privacy Policy: https://www.nasm.org/policies/terms-and-conditions/nasm-app

Screenshots

GymNext Flex Timer4 screens
NASM EDGE4 screens

Verdict

The call

The clearest difference is review sentiment: GymNext Flex Timer at 72% against NASM EDGE's 9%. GymNext Flex Timer also leads on rating (4.8 vs 2.9) and monetization model (free vs subscription). On price, update cadence, in-app purchases and device support 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 and NASM EDGE sells 6 in-app purchases, starting at $19.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

GymNext Flex Timer holds the better App Store score, 4.8 against 2.9. That said, the two scores are not equally well evidenced: GymNext Flex Timer has 2.2K ratings behind it against 235, 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 9% of NASM EDGE's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on November 1, 2026 and October 29, 2026 respectively.

Scorecard5 real differences · 5 level
GymNext Flex Timer versus NASM EDGE: the parameters behind the verdict, then further details
ParameterGymNext Flex TimerNASM EDGE
PriceFreeFree
Rating4.8 (2.2K ratings) — better2.9 (235 ratings)
Positive reviews71.7% of reviews — better9.4% of reviews
Number of ratings2.2K — better235
Update frequencyEvery 3 weeksEvery 3 weeks
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree — betterSubscription
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad, iPod
Requires iOS15.0 — better15.6
Further details — not scored
Size185 MB235 MB
Age rating4+4+
DeveloperHomick EnterprisesATI

Customer experience

GymNext Flex Timer

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

NASM EDGE

All ratings236 ratings
Positive38.1%
Neutral15.7%
Negative46.2%
Written reviews127 reviews
Positive9.4%
Neutral18.1%
Negative72.4%

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

NASM EDGE

From 235 App Store ratings

What we love

  • 🚀 Useful assessment features
  • 📈 Nutrition calculators
  • 💻 Ability to add own videos/exercises
  • 📝 Easy to add clients

Room to improve

  • 🐛 Buggy and crashes frequently
  • ⏱️ Slow exercise search and loading
  • 🤯 Frustrating to use, glitchy
  • 🔍 Limited exercise library
  • 💾 Issues saving/updating workouts

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

NASM EDGE

Reported bugs

5 issues
  • Workouts disappearing after saving
  • Exercises not loading properly
  • Inability to edit/delete client information
  • Frequent login issues and app crashes
  • Unreliable syncing between app and web version

Requested features

6 requests
  • Add ability to create supersets and circuits
  • Allow clients to record weights/reps used
  • Integrate with fitness tracking apps
  • Add more exercise options, including basic movements
  • Improve workout editing and saving functionality
Show 1 more
  • Enhance search and filtering capabilities

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
6 purchases

NASM EDGE

Subscriptions5
  • Trainer Plus (1 Month)$19.991 Month
  • Trainer Pro (1 Month)$34.991 Month
  • Trainer Quarterly Subscription$55.993 Months
Show 2 more
  • Trainer Plus (1 Year)$199.991 Year
  • Trainer Pro (1 Year)$349.991 Year
One-time1
  • CPT Exam Prep Package$16.99

Questions

Is GymNext Flex Timer free?
GymNext Flex Timer is free to download, with in-app purchases available.
Is NASM EDGE free?
NASM EDGE is free to download, with in-app purchases available.
Which has better reviews, GymNext Flex Timer or NASM EDGE?
GymNext Flex Timer is rated higher. GymNext Flex Timer averages 4.8 out of 5 from 2.2K ratings, while NASM EDGE averages 2.9 from 235 ratings.
Do GymNext Flex Timer or NASM EDGE have ads?
NASM EDGE shows ads; GymNext Flex Timer does not.
Which is updated more often, GymNext Flex Timer or NASM EDGE?
GymNext Flex Timer ships an update every 3 weeks, and NASM EDGE every 3 weeks. Most recently, GymNext Flex Timer was updated on November 1, 2026 and NASM EDGE on October 29, 2026.

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