# GymNext Flex Timer vs HybridAF Mobile

The clearest difference is rating: GymNext Flex Timer at 4.8 against HybridAF Mobile's 3.1. GymNext Flex Timer also leads on ratings volume (2.1K vs 27) and review sentiment (72% vs 55%). HybridAF Mobile's advantage is in-app purchases (none vs 2) and iOS requirement (12.0 vs 15.0). On price, update cadence, ads and monetization model there is nothing between them.

Both are free to download. GymNext Flex Timer sells 2 in-app purchases, starting at $8.99 per month. HybridAF Mobile asks for nothing beyond the download.

GymNext Flex Timer holds the better App Store score, 4.8 against 3.1. That said, the two scores are not equally well evidenced: GymNext Flex Timer has 2.1K ratings behind it against 27, 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 55% of HybridAF Mobile's.

GymNext Flex Timer ships an update every 3 weeks, HybridAF Mobile monthly. The most recent releases landed on September 22, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | GymNext Flex Timer | HybridAF Mobile |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (2.1K ratings)](https://appshunter.io/ios/app/gymnext-flex-timer/id977329344/reviews)** | [3.1 (27 ratings)](https://appshunter.io/ios/app/hybridaf-mobile/id1162801426/reviews) |
| Number of ratings | **2.1K** | 27 |
| Positive reviews | **72.4% of reviews** | 54.5% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | Free | Free |
| Size | 185 MB | 16 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Homick Enterprises](https://appshunter.io/developer/346326303) | [True IP Solutions](https://appshunter.io/developer/1135246419) |

## 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


### HybridAF Mobile

[App page](https://appshunter.io/ios/app/hybridaf-mobile/id1162801426)

Access daily workouts and find gym locations within a network designed for various strength athletes. Discover gyms meeting specific equipment and space requirements for a satisfying workout.

**Highlights:** View daily workouts, Access gym locations, Network of participating gyms, Suitable for various strength sports, Minimum equipment and space requirements

**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 HybridAF Mobile free?

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

### Which has better reviews, GymNext Flex Timer or HybridAF Mobile?

GymNext Flex Timer is rated higher. GymNext Flex Timer averages 4.8 out of 5 from 2.1K ratings, while HybridAF Mobile averages 3.1 from 27 ratings.

### Do GymNext Flex Timer or HybridAF Mobile have ads?

Neither GymNext Flex Timer nor HybridAF Mobile shows ads.

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

GymNext Flex Timer ships an update every 3 weeks, and HybridAF Mobile monthly. Most recently, GymNext Flex Timer was updated on September 22, 2026 and HybridAF Mobile on September 10, 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.*