GymNext Flex Timer vs FlowJitsu
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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
FlowJitsu
Log your Brazilian Jiu-Jitsu training sessions, including techniques, drills, and live rolling. Monitor your progress with detailed analytics and build a personal technique library. Track your journey through the belt system to train smarter.
- Log training sessions
- Track techniques and drills
- Monitor progress with analytics
- Build technique library
- Follow belt progression
- Actionable mat time insights
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FlowJitsu - BJJ Training Log Track your Brazilian Jiu-Jitsu journey with FlowJitsu, the comprehensive training companion designed for practitioners of all levels. Log Every Session Record your training sessions with detailed tracking for techniques learned, drills practiced, and live rolling. Track submissions, sweeps, guard passes, takedowns, and taps against training partners to identify patterns in your game. Monitor Your Progress View detailed analytics that show your improvement over time. See your submission rate, identify your most effective techniques, and track training frequency to stay accountable to your goals. Build Your Technique Library Organize techniques by category including submissions, sweeps, guard passes, escapes, and takedowns. Add personal notes and track which techniques you use most in live training. Follow Your Belt Progression Track your journey through the belt system from white to black belt. Log stripe promotions and see how your skills develop at each stage of your martial arts path. Train with Purpose Whether you are preparing for competition or training for self-improvement, FlowJitsu helps you train smarter by turning raw mat time into actionable insights.
Screenshots
Verdict
The clearest difference is review sentiment: GymNext Flex Timer at 72% against FlowJitsu's 0%. GymNext Flex Timer also leads on rating (4.8 vs 4.1) and ratings volume (2.1K vs 9). FlowJitsu's advantage is in-app purchases (none vs 2) and update cadence (every 5 days vs every 3 weeks). On price, ads, monetization model 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
Both are free to download. GymNext Flex Timer sells 2 in-app purchases, starting at $8.99 per month. FlowJitsu asks for nothing beyond the download.
GymNext Flex Timer holds the better App Store score, 4.8 against 4.1. That said, the two scores are not equally well evidenced: GymNext Flex Timer has 2.1K ratings behind it against 9, 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 0% of FlowJitsu's.
GymNext Flex Timer ships an update every 3 weeks, FlowJitsu every 5 days. The most recent releases landed on October 13, 2026 and October 1, 2026 respectively.
| Parameter | GymNext Flex Timer | FlowJitsu |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (2.1K ratings) — better | 4.1 (9 ratings) |
| Positive reviews | 71.7% of reviews — better | 0.0% of reviews |
| Number of ratings | 2.1K — better | 9 |
| Update frequency | Every 3 weeks | Every 5 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone, iPad, iPod |
| Requires iOS | 15.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 185 MB | 69 MB |
| Age rating | 4+ | 4+ |
| Developer | Homick Enterprises | Jeremiah Parrack |
Customer experience
GymNext Flex Timer
FlowJitsu
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
FlowJitsu
Not enough reviews yet to summarise bugs or requests.
In-app purchases
GymNext Flex Timer
- Flex Timer Pro Monthly7 Days trial$8.991 Month
- Flex Timer Pro Yearly1 Month trial$79.991 Year
FlowJitsu
No in-app purchases









