# HIIT Dual Timer vs NRGym

The clearest difference is review sentiment: NRGym at 100% against HIIT Dual Timer's 0%. HIIT Dual Timer's advantage is in-app purchases (none vs 3) and update cadence (every 5 days vs every 6 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. NRGym sells 3 in-app purchases, starting at $4.99 per month. HIIT Dual Timer asks for nothing beyond the download.

HIIT Dual Timer ships an update every 5 days, NRGym every 6 weeks. The most recent releases landed on June 3, 2026 and June 4, 2026 respectively.

## The numbers

| Metric | HIIT Dual Timer | NRGym |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (1 ratings)](https://appshunter.io/ios/app/hiit-dual-timer/id1505262060/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 6 weeks |
| Monetization | **Free** | Freemium |
| Size | 1 MB | 31 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [BWorby Works](https://appshunter.io/developer/546372907) | [Rousel Chowdhury](https://appshunter.io/developer/1721154981) |

## What reviewers say

### HIIT Dual Timer

[App page](https://appshunter.io/ios/app/hiit-dual-timer/id1505262060)

This interval timer allows you to set custom durations for work and rest periods, and then repeat them for a specified number of rounds. It's designed for high-intensity interval training and other timed activities.

**Highlights:** Customizable work intervals, Customizable rest intervals, Set number of rounds, Simple start and go functionality, Ideal for HIIT workouts

**Features:** macOS Compatibility

**In-app purchases:** none


### NRGym

[App page](https://appshunter.io/ios/app/nrgym/id1598366874)

This app offers interactive 3D gym mapping, personalized training plans, and nutrition tracking. It synchronizes with Apple HealthKit to monitor achievements and allows users to log workouts and progress photos. Community features are also integrated.

**Highlights:** Interactive 3D Gym Mapping, Customizable Training Plans, Nutrition Logging, Progress Photo Uploads, Apple HealthKit Synchronization, Community Features

**Features:** Apple Wallet

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| NRGym | $4.99 | per month |
| NRGym | $50.99 | per year |
| NRGym App Subscription | $5.99 | one-time |


## Frequently asked questions

### Is HIIT Dual Timer free?

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

### Is NRGym free?

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

### Do HIIT Dual Timer or NRGym have ads?

Neither HIIT Dual Timer nor NRGym shows ads.

### Which is updated more often, HIIT Dual Timer or NRGym?

HIIT Dual Timer ships an update every 5 days, and NRGym every 6 weeks. Most recently, HIIT Dual Timer was updated on June 3, 2026 and NRGym on June 4, 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.*