# GymNext Flex Timer vs Rest Timer

The clearest difference is in-app purchases: Rest Timer at none against GymNext Flex Timer's 2. Rest Timer also leads on review sentiment (100% vs 72%). GymNext Flex Timer's advantage is ratings volume (2.1K vs 11) and update cadence (every 3 weeks vs every 2 months). On price, rating, 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. Rest 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 Rest Timer. That said, the two scores are not equally well evidenced: GymNext Flex Timer has 2.1K ratings behind it against 11, so its average is the more settled of the two. Written reviews are what separate them: 72% of GymNext Flex Timer's written reviews are positive against 100% of Rest Timer's.

GymNext Flex Timer ships an update every 3 weeks, Rest Timer every 2 months. The most recent releases landed on October 2, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | GymNext Flex Timer | Rest Timer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (2.1K ratings)](https://appshunter.io/ios/app/gymnext-flex-timer/id977329344/reviews) | **[4.9 (11 ratings)](https://appshunter.io/ios/app/rest-timer-waitwaitgo/id1162311487/reviews)** |
| Number of ratings | **2.1K** | 11 |
| Positive reviews | 71.7% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | Free | Free |
| Size | 185 MB | 20 MB |
| Requires iOS | 15.0 | **14.0** |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Homick Enterprises](https://appshunter.io/developer/346326303) | [Srdan Stanic](https://appshunter.io/developer/1162311486) |

## 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


### Rest Timer

[App page](https://appshunter.io/ios/app/rest-timer-waitwaitgo/id1162311487)

This app provides a simple countdown timer for rest periods during workouts. It features customizable sounds, notification-based restarts, and dynamic display support. Easily manage your workout intervals without interrupting your music or unlocking your phone.

**Highlights:** One-tap timer start, Customizable rest periods, Plays music during countdown, Restart from notification, Dynamic Island and Live Activity support, Adjust timer while running

**Features:** macOS Compatibility

**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 Rest Timer free?

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

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

Rest Timer is rated higher. GymNext Flex Timer averages 4.8 out of 5 from 2.1K ratings, while Rest Timer averages 4.9 from 11 ratings.

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

Neither GymNext Flex Timer nor Rest Timer shows ads.

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

GymNext Flex Timer ships an update every 3 weeks, and Rest Timer every 2 months. Most recently, GymNext Flex Timer was updated on October 2, 2026 and Rest Timer on September 26, 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.*