# FAST! vs Voltono X

The clearest difference is in-app purchases: Voltono X at none against FAST!'s 1. FAST!'s advantage is update cadence (every 3 days vs every 9 days) and iOS requirement (12.0 vs 15.6). On price, ads and device support there is nothing between them.

Both are free to download. FAST! sells 1 in-app purchase, starting at $19.99 per year. Voltono X asks for nothing beyond the download.

FAST! ships an update every 3 days, Voltono X every 9 days. The most recent releases landed on October 21, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | FAST! | Voltono X |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 9 days |
| Monetization | Subscription | — |
| Size | 128 MB | 65 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [TNQ Tech, Co.](https://appshunter.io/developer/1817559824) | [株式会社S-CADE](https://appshunter.io/developer/1621269147) |

## What reviewers say

### FAST!

[App page](https://appshunter.io/ios/app/fast/id6746974553)

This app uses AI-powered velocity-based training to help athletes and coaches manage team data, visualize movement speed, and optimize lifts. It supports various exercises and offers advanced features like motion comparison and custom tracking for detailed analysis.

**Highlights:** AI-powered VBT training, Team data management, Real-time movement speed visualization, Motion comparison mode, Custom tracking mode, Supports various core and Olympic lifts

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Yearly Plan | $19.99 | per year |


### Voltono X

[App page](https://appshunter.io/ios/app/voltono-x/id6752209687)

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

**In-app purchases:** none


## Frequently asked questions

### Is FAST! free?

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

### Is Voltono X free?

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

### Do FAST! or Voltono X have ads?

Neither FAST! nor Voltono X shows ads.

### Which is updated more often, FAST! or Voltono X?

FAST! ships an update every 3 days, and Voltono X every 9 days. Most recently, FAST! was updated on October 21, 2026 and Voltono X on October 24, 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.*