# GymNext Flex Timer vs Box Timer

The clearest difference is in-app purchases: Box Timer at none against GymNext Flex Timer's 2. Box Timer also leads on review sentiment (93% vs 72%). GymNext Flex Timer's advantage is device support (4 vs 2) and iOS requirement (15.0 vs 18). On price, rating, ratings volume and update cadence there is nothing between them.

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

On the App Store both sit at effectively the same score — 4.8 for GymNext Flex Timer against 4.9 for Box Timer. Both are backed by a comparable volume of ratings — 2.1K and 2.9K respectively. Written reviews are what separate them: 72% of GymNext Flex Timer's written reviews are positive against 93% of Box Timer's.

GymNext Flex Timer ships an update every 3 weeks, Box Timer monthly. The most recent releases landed on September 30, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | GymNext Flex Timer | Box Timer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (2.1K ratings)](https://appshunter.io/ios/app/gymnext-flex-timer/id977329344/reviews) | **[4.9 (2.9K ratings)](https://appshunter.io/ios/app/box-timer-simple-wod-clock/id1547518531/reviews)** |
| Number of ratings | 2.1K | **2.9K** |
| Positive reviews | 71.7% of reviews | **93.2% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | Free | Free |
| Size | 185 MB | 7 MB |
| Requires iOS | **15.0** | 18 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Homick Enterprises](https://appshunter.io/developer/346326303) | [Edvin Linden](https://appshunter.io/developer/1472363182) |

## 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


### Box Timer

[App page](https://appshunter.io/ios/app/box-timer-simple-wod-clock/id1547518531)

This app provides a simple, distraction-free timer designed for intense training sessions like CrossFit, HIIT, and functional fitness. It features a massive, high-contrast display, customizable interval options, and seamless audio cue integration with music apps. All workouts are automatically saved for easy tracking and reuse.

**Highlights:** Massive, high-contrast display, Supports AMRAP, EMOM, For Time, Tabata, Customizable work/rest intervals and rounds, Works with music apps, clear audio cues, Automatic workout history and reuse, Background operation and screen lock support, No ads or sign-up required

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Simple and straightforward
- 🔒 No ads or subscriptions
- 👍 Intuitive and easy to use
- 👍 Excellent for home workouts
- 👍 Minimalistic and focused design

**What reviewers complain about**

- 🐛 Issues with UI and timer controls on some devices
- 🐛 Lack of sound options or countdown beeps
- 🐛 Inability to adjust times without resetting the workout

**Reported bugs**

- Timer not functioning properly in landscape mode
- Review prompt interfering with timer operation
- Compatibility issues on certain iPad models

**Requested features**

- Round count display during rest periods
- Customizable countdown beeps or sounds
- Ability to save and load custom timer settings
- Apple Watch app support


## Frequently asked questions

### Is GymNext Flex Timer free?

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

### Is Box Timer free?

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

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

Box Timer is rated higher. GymNext Flex Timer averages 4.8 out of 5 from 2.1K ratings, while Box Timer averages 4.9 from 2.9K ratings.

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

Neither GymNext Flex Timer nor Box Timer shows ads.

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

GymNext Flex Timer ships an update every 3 weeks, and Box Timer monthly. Most recently, GymNext Flex Timer was updated on September 30, 2026 and Box Timer on September 29, 2026.

---

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