# HIIT vs SOAR Study

The clearest difference is rating: HIIT at 4.3 against SOAR Study's 1.0. HIIT also leads on ratings volume (34 vs 2). SOAR Study's advantage is in-app purchases (none vs 8) and iOS requirement (14.0 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. HIIT sells 8 in-app purchases, starting at $0.99 per month. SOAR Study asks for nothing beyond the download.

HIIT holds the better App Store score, 4.3 against 1.0. That said, the two scores are not equally well evidenced: HIIT has 34 ratings behind it against 2, so its average is the more settled of the two.

Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on September 18, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | HIIT | SOAR Study |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (34 ratings)](https://appshunter.io/ios/app/hiit-simple-interval-timer/id6449472984/reviews)** | [1.0 (2 ratings)](https://appshunter.io/ios/app/soar-study/id6475772905/reviews) |
| Number of ratings | **34** | 2 |
| Positive reviews | 57.1% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Monetization | Free with in-app purchases | **Free** |
| Size | 83 MB | 205 MB |
| Requires iOS | 17.0 | **14.0** |
| Devices | iPhone, Apple Watch | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Maxim Kazakov](https://appshunter.io/developer/1290266003) | [MetricWire Inc.](https://appshunter.io/developer/815033540) |

## What reviewers say

### HIIT

[App page](https://appshunter.io/ios/app/hiit-simple-interval-timer/id6449472984)

Design and track custom interval running workouts with real-time data and audio cues. This app offers detailed post-run analysis and integrates with Apple Health and Apple Watch for phone-free training.

**Highlights:** Customizable intervals (time, distance, open), Support for HIIT, tempo, fartlek, pyramid, progression workouts, Real-time tracking of pace, cadence, heart rate, Audio cues for guidance, Phone-free Apple Watch operation, Post-run analysis and GPX export, Apple Health integration

**Features:** macOS Compatibility, Apple Watch app

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly Day 2 | $0.99 | per month |
| Premium Weekly | $3.99 | per 7 days |
| Premium Monthly Day 1 | $4.99 | per month |
| Premium Monthly | $9.99 | per month |
| Premium 3 Months | $19.99 | per 3 months |
| Premium Annual Special Offer | $29.99 | per year |
| Interval Run Premium Yearly | $59.99 | per year |
| Intreval Run Premium Lifetime | $39.99 | one-time |


### SOAR Study

[App page](https://appshunter.io/ios/app/soar-study/id6475772905)

Participate in a research study by responding to surveys about your thoughts, feelings, and behaviors. The app also collects sensor data to understand your activity, environment, and smartphone usage.

**Highlights:** Survey responses, Sensor data collection, Activity tracking, Environment monitoring, Smartphone usage analysis

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is HIIT free?

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

### Is SOAR Study free?

SOAR Study is free to download, with no in-app purchases.

### Which has better reviews, HIIT or SOAR Study?

HIIT is rated higher. HIIT averages 4.3 out of 5 from 34 ratings, while SOAR Study averages 1.0 from 2 ratings.

### Do HIIT or SOAR Study have ads?

Neither HIIT nor SOAR Study shows ads.

### Which is updated more often, HIIT or SOAR Study?

HIIT ships an update every 2 weeks, and SOAR Study every 2 weeks. Most recently, HIIT was updated on September 18, 2026 and SOAR Study on September 30, 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.*