# Infraway vs The Stack System

The clearest difference is in-app purchases: Infraway at none against The Stack System's 8. Infraway also leads on device support (3 vs 1). The Stack System's advantage is ads (none vs shown) and ratings volume (7K vs 14). On price, rating, update cadence and iOS requirement there is nothing between them.

Both are free to download. The Stack System sells 6 in-app purchases, starting at $9.99 per 7 days. Infraway asks for nothing beyond the download.

The Stack System holds the better App Store score, 4.9 against 4.7. That said, the two scores are not equally well evidenced: The Stack System has 7K ratings behind it against 14, so its average is the more settled of the two. Written reviews point the same way: 75% of Infraway's written reviews are positive against 86% of The Stack System's.

Infraway ships an update every 5 weeks, The Stack System monthly. The most recent releases landed on October 3, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Infraway | The Stack System |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (14 ratings)](https://appshunter.io/ios/app/infraway/id1445918941/reviews) | **[4.9 (7K ratings)](https://appshunter.io/ios/app/the-stack-system/id1534757407/reviews)** |
| Number of ratings | 14 | **7K** |
| Positive reviews | 75.0% of reviews | **86.3% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 weeks | **Monthly** |
| Monetization | **Ad-supported** | Freemium |
| Best chart rank | — | **#123** |
| Size | 59 MB | 222 MB |
| Requires iOS | **15.1** | 16.2 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Infraway LLC](https://appshunter.io/developer/1666061169) | [The Stack System, LP](https://appshunter.io/developer/1534757409) |

## What reviewers say

### Infraway

[App page](https://appshunter.io/ios/app/infraway/id1445918941)

This app connects to a portable heating device designed to alleviate low back pain, soreness, and muscle fatigue. It offers a convenient and effective way to manage discomfort with an easy-to-use interface.

**Highlights:** Connect to Infraway L1 device, On-demand portable heating, Soothes low back aches, Relieves muscle fatigue, Comfortable form factor

**In-app purchases:** none


### The Stack System

[App page](https://appshunter.io/ios/app/the-stack-system/id1534757407)

**Currently charting:** #123 Top Grossing · Health & Fitness (US App Store)

Enhance your golf game with science-based training modules for speed, wedging, and putting. Improve distance, accuracy, and consistency with personalized practice sessions and detailed analytics. Requires compatible hardware.

**Highlights:** Variable inertia speed training for distance, Science-based wedge distance control, Gamified putting practice and analytics, Personalized practice sessions, Real-time scoring and insights, Customizable training modes

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Stack Putting 1 Week | $9.99 | per 7 days |
| Stack Putting 1 Wk | $9.99 | per 7 days |
| TheStack Speed Training | $14.99 | per 7 days |
| TheStack Scoring Membership | $99.00 | per year |
| TheStack Speed Membership | $99.00 | per year |
| TheStack Premium Membership | $129.00 | per year |

**What reviewers like**

- 🚀 Seeing speed gains
- 👍 Easy to use app
- 👍 Motivating and helpful
- 👍 Detailed instructions
- 👍 Warmup routine

**What reviewers complain about**

- 🐛 Glitchy app (audio, dictation, timers)
- 🔧 Integration issues with other devices
- 💡 More insights and advice needed
- 🐛 Inconsistent audio/voice features
- 🐛 Occasional missing countdown

**Reported bugs**

- Putting app not working properly
- Slope percentage input issue

**Requested features**

- Calendar integration
- Music/podcast playback integration
- Apple Watch support


## Frequently asked questions

### Is Infraway free?

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

### Is The Stack System free?

The Stack System is free to download, with in-app purchases available.

### Which has better reviews, Infraway or The Stack System?

The Stack System is rated higher. Infraway averages 4.7 out of 5 from 14 ratings, while The Stack System averages 4.9 from 7K ratings.

### Do Infraway or The Stack System have ads?

Infraway shows ads; The Stack System does not.

### Which is updated more often, Infraway or The Stack System?

Infraway ships an update every 5 weeks, and The Stack System monthly. Most recently, Infraway was updated on October 3, 2026 and The Stack System on October 19, 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.*