# HIIT Training Interval Timer vs Ruler msg

The clearest difference is in-app purchases: Ruler msg at none against HIIT Training Interval Timer's 1. Ruler msg also leads on ads (none vs shown) and update cadence (every 5 weeks vs every 9 months). HIIT Training Interval Timer's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 16.1). On price there is nothing between them.

Both are free to download. HIIT Training Interval Timer sells 1 one-off in-app purchase. Ruler msg asks for nothing beyond the download.

HIIT Training Interval Timer ships an update every 9 months, Ruler msg every 5 weeks. The most recent releases landed on October 30, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | HIIT Training Interval Timer | Ruler msg |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (12 ratings)](https://appshunter.io/ios/app/hiit-training-interval-timer/id1615538751/reviews)** | — |
| Number of ratings | **12** | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 9 months | **Every 5 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 2 MB | 6 MB |
| Requires iOS | **13.0** | 16.1 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Phan Nhat Đang](https://appshunter.io/developer/1437390098) | [kenshin miyamoto](https://appshunter.io/developer/1672328137) |

## What reviewers say

### HIIT Training Interval Timer

[App page](https://appshunter.io/ios/app/hiit-training-interval-timer/id1615538751)

This application helps manage the duration of your high-intensity interval training workouts. You can create and customize various timers to fit your specific exercise routines. It is designed to be intuitive, simple, and easy to operate.

**Highlights:** Create and edit custom timers, Manage full HIIT workout time, Intuitive and simple interface, Workout customization

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock all features | $5.99 | one-time |


### Ruler msg

[App page](https://appshunter.io/ios/app/ruler-msg/id6445908328)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is HIIT Training Interval Timer free?

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

### Is Ruler msg free?

Ruler msg is free to download, with no in-app purchases.

### Do HIIT Training Interval Timer or Ruler msg have ads?

HIIT Training Interval Timer shows ads; Ruler msg does not.

### Which is updated more often, HIIT Training Interval Timer or Ruler msg?

HIIT Training Interval Timer ships an update every 9 months, and Ruler msg every 5 weeks. Most recently, HIIT Training Interval Timer was updated on October 30, 2026 and Ruler msg on October 27, 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.*