Comparison

GymNext Flex Timer vs Train RP

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

Train RP

Features
Read full description

Download the Train RP app to easily book classes and manage your fitness experience - anytime, anywhere. Make a reservation, get added to a wait list, check your profile and membership status, and more – all from your device. Visit https://trainrp.com to learn more.

Screenshots

GymNext Flex Timer4 screens
Train RP4 screens

Verdict

The call

The clearest difference is in-app purchases: Train RP at none against GymNext Flex Timer's 2. GymNext Flex Timer's advantage is update cadence (every 3 weeks vs every 3 months) and device support (4 vs 2). On price, ads 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. GymNext Flex Timer sells 2 in-app purchases, starting at $8.99 per month. Train RP asks for nothing beyond the download.

UpkeepUpdate frequency

GymNext Flex Timer ships an update every 3 weeks, Train RP every 3 months. The most recent releases landed on September 25, 2026 and July 3, 2026 respectively.

Scorecard3 real differences · 7 level
GymNext Flex Timer versus Train RP: the parameters behind the verdict, then further details
ParameterGymNext Flex TimerTrain RP
PriceFreeFree
Rating4.8 (2.1K ratings) — better—
Positive reviews72.4% of reviews—
Number of ratings2.1K — better—
Update frequencyEvery 3 weeks — betterEvery 3 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree—
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPod
Requires iOS15.0 — better15.6
Further details — not scored
Size185 MB31 MB
Age rating4+4+
DeveloperHomick EnterprisesRoberts Performance LLC

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

Train RP

Not enough reviews yet to summarise bugs or requests.

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

Train RP

No in-app purchases

Questions

Is GymNext Flex Timer free?
GymNext Flex Timer is free to download, with in-app purchases available.
Is Train RP free?
Train RP is free to download, with no in-app purchases.
Do GymNext Flex Timer or Train RP have ads?
Neither GymNext Flex Timer nor Train RP shows ads.
Which is updated more often, GymNext Flex Timer or Train RP?
GymNext Flex Timer ships an update every 3 weeks, and Train RP every 3 months. Most recently, GymNext Flex Timer was updated on September 25, 2026 and Train RP on July 3, 2026.

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