# SMART Sideline vs The Mastery App

The clearest difference is price: The Mastery App at Free against SMART Sideline's $99.99. SMART Sideline's advantage is in-app purchases (none vs 4). On update cadence, ads, device support and iOS requirement there is nothing between them.

The Mastery App is free to download; SMART Sideline costs $99.99 up front. The Mastery App sells 4 in-app purchases, starting at $14.99 per month. SMART Sideline asks for nothing beyond the download.

SMART Sideline ships an update every 9 days, The Mastery App every 6 days. The most recent releases landed on October 14, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | SMART Sideline | The Mastery App |
| --- | --- | --- |
| Price | $99.99 | **Free** |
| Rating | — | **[5.0 (25 ratings)](https://appshunter.io/ios/app/the-mastery-app/id6739948900/reviews)** |
| Number of ratings | — | **25** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 9 days | **Every 6 days** |
| Monetization | — | Free with in-app purchases |
| Size | 164 MB | 58 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 12+ |
| Developer | [Aaron Huffman](https://appshunter.io/developer/1803479786) | [Mastery Holdings Company](https://appshunter.io/developer/1749368881) |

## What reviewers say

### SMART Sideline

[App page](https://appshunter.io/ios/app/smart-sideline/id6480072567)

**In-app purchases:** none


### The Mastery App

[App page](https://appshunter.io/ios/app/the-mastery-app/id6739948900)

This app helps athletes improve focus, confidence, and performance through mental training. It offers guided visualization, mindset tracking, and personalized coaching powered by AI and elite sports psychologists. Train smarter and stay composed under pressure to reach your peak potential.

**Highlights:** Guided visualization training, AI mental coach, Mindset tracking, Motivation and resilience tools, Personalized coaching, Adaptive mental performance system

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Plan (Monthly) | $14.99 | per month |
| Pro Plan (Monthly) | $29.99 | per month |
| Pro Plan (Annual) | $149.00 | per year |
| Pro Plan (Annual) | $299.00 | per year |


## Frequently asked questions

### Is SMART Sideline free?

SMART Sideline costs $99.99, with no in-app purchases.

### Is The Mastery App free?

The Mastery App is free to download, with in-app purchases available.

### Do SMART Sideline or The Mastery App have ads?

Neither SMART Sideline nor The Mastery App shows ads.

### Which is updated more often, SMART Sideline or The Mastery App?

SMART Sideline ships an update every 9 days, and The Mastery App every 6 days. Most recently, SMART Sideline was updated on October 14, 2026 and The Mastery App on October 3, 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.*