# HC HIIT Interval Timer vs Monarch Prime Pin

The clearest difference is rating: Monarch Prime Pin at 5.0 against HC HIIT Interval Timer's 4.2. Monarch Prime Pin also leads on update cadence (weekly vs every 21 months). HC HIIT Interval Timer's advantage is in-app purchases (none vs 1). On price, review sentiment, ratings volume and ads there is nothing between them.

Both are free to download. Monarch Prime Pin sells 1 one-off in-app purchase. HC HIIT Interval Timer asks for nothing beyond the download.

Monarch Prime Pin holds the better App Store score, 5.0 against 4.2. Both are backed by a comparable volume of ratings — 5 and 8 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

HC HIIT Interval Timer ships an update every 21 months, Monarch Prime Pin weekly. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | HC HIIT Interval Timer | Monarch Prime Pin |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.2 (5 ratings)](https://appshunter.io/ios/app/hc-hiit-interval-timer/id1501179862/reviews) | **[5.0 (8 ratings)](https://appshunter.io/ios/app/monarch-prime-pin/id6770808426/reviews)** |
| Number of ratings | 5 | **8** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 21 months | **Weekly** |
| Monetization | Free | Free |
| Size | 2 MB | 40 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Dejan Dragic](https://appshunter.io/developer/1501179861) | [Revival Fitness Athletics LLC](https://appshunter.io/developer/1896763938) |

## What reviewers say

### HC HIIT Interval Timer

[App page](https://appshunter.io/ios/app/hc-hiit-interval-timer/id1501179862)

Create and manage custom interval training workouts with an integrated timer. Design workouts with specific actions, colors, names, and durations. Suitable for personal training or individual fitness routines.

**Highlights:** Create custom workouts, Integrated workout timer, Define actions with color, name, and duration, Use default workouts, Save and reuse workout routines

**Features:** macOS Compatibility

**In-app purchases:** none


### Monarch Prime Pin

[App page](https://appshunter.io/ios/app/monarch-prime-pin/id6770808426)

This app helps users meticulously organize research logs, track site usage, and monitor progress with manual entry and visual analytics. It provides a clean dashboard for managing notes, history, and reminders, emphasizing local data management for privacy. Designed solely for research recordkeeping, it does not offer medical advice or dosage recommendations.

**Highlights:** Manual research log entry, Injection site rotation tracking, Site heatmap and usage history, Calendar and log history views, Weekly activity analytics, Progress photo support

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monarch Lifetime Pro | $9.99 | one-time |


## Frequently asked questions

### Is HC HIIT Interval Timer free?

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

### Is Monarch Prime Pin free?

Monarch Prime Pin is free to download, with in-app purchases available.

### Which has better reviews, HC HIIT Interval Timer or Monarch Prime Pin?

Monarch Prime Pin is rated higher. HC HIIT Interval Timer averages 4.2 out of 5 from 5 ratings, while Monarch Prime Pin averages 5.0 from 8 ratings.

### Do HC HIIT Interval Timer or Monarch Prime Pin have ads?

Neither HC HIIT Interval Timer nor Monarch Prime Pin shows ads.

### Which is updated more often, HC HIIT Interval Timer or Monarch Prime Pin?

HC HIIT Interval Timer ships an update every 21 months, and Monarch Prime Pin weekly. Most recently, HC HIIT Interval Timer was updated on November 3, 2026 and Monarch Prime Pin on October 31, 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.*