# GymNext Flex Timer vs NASM EDGE

The clearest difference is review sentiment: GymNext Flex Timer at 72% against NASM EDGE's 9%. GymNext Flex Timer also leads on rating (4.8 vs 2.9) and monetization model (free vs subscription). On price, update cadence, in-app purchases 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 and NASM EDGE sells 6 in-app purchases, starting at $19.99 per month. Whichever you choose, the download price is not the number that matters.

GymNext Flex Timer holds the better App Store score, 4.8 against 2.9. That said, the two scores are not equally well evidenced: GymNext Flex Timer has 2.2K ratings behind it against 235, 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 9% of NASM EDGE's.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on November 1, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | GymNext Flex Timer | NASM EDGE |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (2.2K ratings)](https://appshunter.io/ios/app/gymnext-flex-timer/id977329344/reviews)** | [2.9 (235 ratings)](https://appshunter.io/ios/app/nasm-edge-personal-trainers/id1353245169/reviews) |
| Number of ratings | **2.2K** | 235 |
| Positive reviews | **71.7% of reviews** | 9.4% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | **Free** | Subscription |
| Size | 185 MB | 235 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) | [ATI](https://appshunter.io/developer/369946807) |

## 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


### NASM EDGE

[App page](https://appshunter.io/ios/app/nasm-edge-personal-trainers/id1353245169)

This app provides tools for personal trainers to manage clients, create custom workouts, and track progress. It also offers resources for fitness enthusiasts, including exercise videos and daily routines.

**Highlights:** Client assessment wizard, Custom workout creation, Calorie and macronutrient calculator, Client dashboard with progress tracking, Exercise video library, NASM CPT exam preparation tools

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Trainer Plus (1 Month) | $19.99 | per month |
| Trainer Pro (1 Month) | $34.99 | per month |
| Trainer Quarterly Subscription | $55.99 | per 3 months |
| Trainer Plus (1 Year) | $199.99 | per year |
| Trainer Pro (1 Year) | $349.99 | per year |
| CPT Exam Prep Package | $16.99 | one-time |

**What reviewers like**

- 🚀 Useful assessment features
- 📈 Nutrition calculators
- 💻 Ability to add own videos/exercises
- 📝 Easy to add clients

**What reviewers complain about**

- 🐛 Buggy and crashes frequently
- ⏱️ Slow exercise search and loading
- 🤯 Frustrating to use, glitchy
- 🔍 Limited exercise library
- 💾 Issues saving/updating workouts

**Reported bugs**

- Workouts disappearing after saving
- Exercises not loading properly
- Inability to edit/delete client information
- Frequent login issues and app crashes
- Unreliable syncing between app and web version

**Requested features**

- Add ability to create supersets and circuits
- Allow clients to record weights/reps used
- Integrate with fitness tracking apps
- Add more exercise options, including basic movements
- Improve workout editing and saving functionality


## Frequently asked questions

### Is GymNext Flex Timer free?

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

### Is NASM EDGE free?

NASM EDGE is free to download, with in-app purchases available.

### Which has better reviews, GymNext Flex Timer or NASM EDGE?

GymNext Flex Timer is rated higher. GymNext Flex Timer averages 4.8 out of 5 from 2.2K ratings, while NASM EDGE averages 2.9 from 235 ratings.

### Do GymNext Flex Timer or NASM EDGE have ads?

NASM EDGE shows ads; GymNext Flex Timer does not.

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

GymNext Flex Timer ships an update every 3 weeks, and NASM EDGE every 3 weeks. Most recently, GymNext Flex Timer was updated on November 1, 2026 and NASM EDGE on October 29, 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.*