# GymNext Flex Timer vs Interval Timer

The clearest difference is update cadence: Interval Timer at every 2 days against GymNext Flex Timer's every 3 weeks. Interval Timer also leads on review sentiment (100% vs 72%) and rating (5.0 vs 4.8). GymNext Flex Timer's advantage is monetization model (free vs free with in-app purchases) and ratings volume (2.1K vs 4). On price, ads and in-app purchases 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 Interval Timer sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Interval Timer 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 4, 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 100% of Interval Timer's.

GymNext Flex Timer ships an update every 3 weeks, Interval Timer every 2 days. The most recent releases landed on October 13, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | GymNext Flex Timer | Interval Timer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (2.1K ratings)](https://appshunter.io/ios/app/gymnext-flex-timer/id977329344/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/interval-timer-sound-cue/id6803740279/reviews)** |
| Number of ratings | **2.1K** | 4 |
| Positive reviews | 71.7% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 185 MB | 4 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Homick Enterprises](https://appshunter.io/developer/346326303) | [Octopus Software LLC](https://appshunter.io/developer/1815869696) |

## 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


### Interval Timer

[App page](https://appshunter.io/ios/app/interval-timer-sound-cue/id6803740279)

Customize your workout timing with spoken countdowns and sound cues. Build complex interval routines for various fitness activities and stay focused on your training without constantly checking the screen.

**Highlights:** Customizable interval timing, Spoken countdowns and sound cues, Support for HIIT, Tabata, and circuits, Adjustable sound and haptic feedback, Workout saving and organization, Offline use and background audio

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 100 Workout Upgrade | $4.99 | one-time |


## Frequently asked questions

### Is GymNext Flex Timer free?

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

### Is Interval Timer free?

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

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

Interval Timer is rated higher. GymNext Flex Timer averages 4.8 out of 5 from 2.1K ratings, while Interval Timer averages 5.0 from 4 ratings.

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

Neither GymNext Flex Timer nor Interval Timer shows ads.

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

GymNext Flex Timer ships an update every 3 weeks, and Interval Timer every 2 days. Most recently, GymNext Flex Timer was updated on October 13, 2026 and Interval Timer on October 6, 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.*