# The Stack System vs THP Scheduler

The clearest difference is in-app purchases: THP Scheduler at none against The Stack System's 8. THP Scheduler also leads on review sentiment (100% vs 86%). The Stack System's advantage is ratings volume (7K vs 5) and chart position (#134 vs unranked). On price, rating, update cadence and ads 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. THP Scheduler asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.9 for The Stack System against 5.0 for THP Scheduler. That said, the two scores are not equally well evidenced: The Stack System has 7K ratings behind it against 5, so its average is the more settled of the two. Written reviews are what separate them: 86% of The Stack System's written reviews are positive against 100% of THP Scheduler's.

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on October 19, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | The Stack System | THP Scheduler |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (7K ratings)](https://appshunter.io/ios/app/the-stack-system/id1534757407/reviews) | **[5.0 (5 ratings)](https://appshunter.io/ios/app/thp-scheduler/id1534864860/reviews)** |
| Number of ratings | **7K** | 5 |
| Positive reviews | 86.3% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | Monthly |
| Monetization | Freemium | **Ad-supported** |
| Best chart rank | **#134** | — |
| Size | 222 MB | 194 MB |
| Requires iOS | 16.2 | **16.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [The Stack System, LP](https://appshunter.io/developer/1534757409) | [THP-STUDIO, LLC](https://appshunter.io/developer/1534864862) |

## What reviewers say

### The Stack System

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

**Currently charting:** #134 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


### THP Scheduler

[App page](https://appshunter.io/ios/app/thp-scheduler/id1534864860)

Plan and schedule your training sessions directly from your mobile device. View the training schedule, sign up for sessions, and access studio location information. Optimize your time and conveniently book classes.

**Highlights:** View training schedule, Sign up for sessions, Access studio location, Optimize time, Convenient booking

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

**In-app purchases:** none


## Frequently asked questions

### Is The Stack System free?

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

### Is THP Scheduler free?

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

### Which has better reviews, The Stack System or THP Scheduler?

THP Scheduler is rated higher. The Stack System averages 4.9 out of 5 from 7K ratings, while THP Scheduler averages 5.0 from 5 ratings.

### Do The Stack System or THP Scheduler have ads?

Neither The Stack System nor THP Scheduler shows ads.

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

The Stack System ships an update monthly, and THP Scheduler monthly. Most recently, The Stack System was updated on October 19, 2026 and THP Scheduler on October 10, 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.*