Comparison

GymNext Flex Timer vs ONE8 Denver

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

ONE8 Denver

This app connects members to a wellness collective offering services across eight pillars of health. Manage your membership, book appointments, log workouts, and connect with others in a communal space designed for growth and thriving.

Highlights
  • Membership management
  • Appointment booking
  • Workout logging
  • Member interaction
  • After-hours access
  • Access to diverse wellness services
Features
Read full description

ONE8 is a community health and wellness collective designed to offer services to our membership from professional vendors that promote growth in one or more of our eight pillars of health and wellness. Our anchor vendor, ONE8 CrossFit, will be supplemented by offerings such as mental health support, physical therapy, barbershop and beauty salon services, financial and career advising, philanthropic projects, and more. ONE8 will also provide communal space for our members with amenities such as a recovery center, co-working stations, an event room, and more. At ONE8 we gather to grow, move, work, meet, learn, serve, socialize, and thrive. In the ONE8 Members App, you will be able to manage your membership, book appointments with all vendors in the space, log your workouts, interact with other members, and even unlock the space after hours. Here is to life.

Screenshots

GymNext Flex Timer4 screens
ONE8 Denver4 screens

Verdict

The call

The clearest difference is in-app purchases: ONE8 Denver at none against GymNext Flex Timer's 2. ONE8 Denver also leads on rating (5.0 vs 4.8) and iOS requirement (13.0 vs 15.0). GymNext Flex Timer's advantage is ads (none vs shown) and ratings volume (2.1K vs 1). On price 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. ONE8 Denver asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

ONE8 Denver holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: GymNext Flex Timer has 2.1K ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

GymNext Flex Timer ships an update every 3 weeks, ONE8 Denver every 6 weeks. The most recent releases landed on October 13, 2026 and October 1, 2026 respectively.

Scorecard7 real differences · 3 level
GymNext Flex Timer versus ONE8 Denver: the parameters behind the verdict, then further details
ParameterGymNext Flex TimerONE8 Denver
PriceFreeFree
Rating4.8 (2.1K ratings)5.0 (1 ratings) — better
Positive reviews71.7% of reviews—
Number of ratings2.1K — better1
Update frequencyEvery 3 weeks — betterEvery 6 weeks
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFree — betterAd-supported
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad, iPod
Requires iOS15.013.0 — better
Further details — not scored
Size185 MB71 MB
Age rating4+4+
DeveloperHomick EnterprisesPushPress, 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%

ONE8 Denver

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

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

ONE8 Denver

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

ONE8 Denver

No in-app purchases

Questions

Is GymNext Flex Timer free?
GymNext Flex Timer is free to download, with in-app purchases available.
Is ONE8 Denver free?
ONE8 Denver is free to download, with no in-app purchases.
Which has better reviews, GymNext Flex Timer or ONE8 Denver?
ONE8 Denver is rated higher. GymNext Flex Timer averages 4.8 out of 5 from 2.1K ratings, while ONE8 Denver averages 5.0 from 1 ratings.
Do GymNext Flex Timer or ONE8 Denver have ads?
ONE8 Denver shows ads; GymNext Flex Timer does not.
Which is updated more often, GymNext Flex Timer or ONE8 Denver?
GymNext Flex Timer ships an update every 3 weeks, and ONE8 Denver every 6 weeks. Most recently, GymNext Flex Timer was updated on October 13, 2026 and ONE8 Denver on October 1, 2026.

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