# GymNext Flex Timer vs Train RP

The clearest difference is in-app purchases: Train RP at none against GymNext Flex Timer's 2. GymNext Flex Timer's advantage is update cadence (every 3 weeks vs every 3 months) and device support (4 vs 2). On price, ads and iOS requirement there is nothing between them.

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

GymNext Flex Timer ships an update every 3 weeks, Train RP every 3 months. The most recent releases landed on September 25, 2026 and July 3, 2026 respectively.

## The numbers

| Metric | GymNext Flex Timer | Train RP |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (2.1K ratings)](https://appshunter.io/ios/app/gymnext-flex-timer/id977329344/reviews)** | — |
| Number of ratings | **2.1K** | — |
| Positive reviews | 72.4% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 3 months |
| Monetization | Free | — |
| Size | 185 MB | 31 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Homick Enterprises](https://appshunter.io/developer/346326303) | [Roberts Performance LLC](https://appshunter.io/developer/1833247054) |

## 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


### Train RP

[App page](https://appshunter.io/ios/app/train-rp/id6751052413)

**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 Train RP free?

Train RP is free to download, with no in-app purchases.

### Do GymNext Flex Timer or Train RP have ads?

Neither GymNext Flex Timer nor Train RP shows ads.

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

GymNext Flex Timer ships an update every 3 weeks, and Train RP every 3 months. Most recently, GymNext Flex Timer was updated on September 25, 2026 and Train RP on July 3, 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.*