# GymNext Flex Timer vs FlowJitsu

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.

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.

## The numbers

| Metric | GymNext Flex Timer | FlowJitsu |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (2.1K ratings)](https://appshunter.io/ios/app/gymnext-flex-timer/id977329344/reviews)** | [4.1 (9 ratings)](https://appshunter.io/ios/app/flowjitsu/id6757253111/reviews) |
| Number of ratings | **2.1K** | 9 |
| Positive reviews | **71.7% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 5 days** |
| Monetization | Free | Free |
| Size | 185 MB | 69 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Homick Enterprises](https://appshunter.io/developer/346326303) | [Jeremiah Parrack](https://appshunter.io/developer/1376363500) |

## What reviewers say

### GymNext Flex Timer

[App page](https://appshunter.io/ios/app/gymnext-flex-timer/id977329344)

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:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Flex Timer Pro Monthly | $8.99 | per month |
| Flex Timer Pro Yearly | $79.99 | per year |

**What reviewers like**

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

**What reviewers complain about**

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

**Reported bugs**

- Saved timers not consistently loading
- Segmented timers not saving properly

**Requested features**

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


### FlowJitsu

[App page](https://appshunter.io/ios/app/flowjitsu/id6757253111)

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.

**Highlights:** Log training sessions, Track techniques and drills, Monitor progress with analytics, Build technique library, Follow belt progression, Actionable mat time insights

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is GymNext Flex Timer free?

GymNext Flex Timer is free to download, with in-app purchases available.

### Is FlowJitsu free?

FlowJitsu is free to download, with no in-app purchases.

### Which has better reviews, GymNext Flex Timer or FlowJitsu?

GymNext Flex Timer is rated higher. GymNext Flex Timer averages 4.8 out of 5 from 2.1K ratings, while FlowJitsu averages 4.1 from 9 ratings.

### Do GymNext Flex Timer or FlowJitsu have ads?

Neither GymNext Flex Timer nor FlowJitsu shows ads.

### Which is updated more often, GymNext Flex Timer or FlowJitsu?

GymNext Flex Timer ships an update every 3 weeks, and FlowJitsu every 5 days. Most recently, GymNext Flex Timer was updated on October 13, 2026 and FlowJitsu on October 1, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*