# iHIIT vs ArcX

The clearest difference is price: ArcX at Free against iHIIT's $0.99. ArcX also leads on update cadence (every 3 weeks vs every 3 months). iHIIT's advantage is in-app purchases (none vs 2). On review sentiment, ads, device support and iOS requirement there is nothing between them.

ArcX is free to download; iHIIT costs $0.99 up front. ArcX sells 2 in-app purchases, starting at $4.99 per month. iHIIT asks for nothing beyond the download.

iHIIT ships an update every 3 months, ArcX every 3 weeks. The most recent releases landed on September 27, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | iHIIT | ArcX |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | — | **[1.7 (7 ratings)](https://appshunter.io/ios/app/arcx/id6444228322/reviews)** |
| Number of ratings | — | **7** |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | Paid | **Freemium** |
| Size | 1 MB | 80 MB |
| Requires iOS | 15.6 | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mu-sonic](https://appshunter.io/developer/791324889) | [ArcX Technology Ltd](https://appshunter.io/developer/1525351498) |

## What reviewers say

### iHIIT

[App page](https://appshunter.io/ios/app/ihiit-flexible-interval-timer/id1515036694)

This interval timer app allows for the creation of complex, customized workout routines with a clear display. It offers flexible programming options, voice cues for intervals, and the ability to skip steps. Track your progress with elapsed time features.

**Highlights:** Customizable interval timer creation, Nested rounds and intervals, Clear countdown display, Skip current step functionality, Configurable count-in signals, Interval name read aloud

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

**In-app purchases:** none


### ArcX

[App page](https://appshunter.io/ios/app/arcx/id6444228322)

Control your smart ring, receive personalized music recommendations, and manage your profile. Features include SOS for emergencies and integration with smartwatches for heart rate-based music.

**Highlights:** Personalized music recommendations, Smart ring configuration, SOS emergency feature, Heart rate-based music adaptation, Profile management, Dashboard control hub

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Arcx Premium | $4.99 | per month |
| Arcx Premium | $49.99 | per year |


## Frequently asked questions

### Is iHIIT free?

iHIIT costs $0.99, with no in-app purchases.

### Is ArcX free?

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

### Do iHIIT or ArcX have ads?

Neither iHIIT nor ArcX shows ads.

### Which is updated more often, iHIIT or ArcX?

iHIIT ships an update every 3 months, and ArcX every 3 weeks. Most recently, iHIIT was updated on September 27, 2026 and ArcX on October 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.*