# FAST! vs OptiSwim BASE

The clearest difference is in-app purchases: OptiSwim BASE at none against FAST!'s 1. FAST!'s advantage is update cadence (every 3 days vs weekly) and iOS requirement (12.0 vs 17.0). 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. OptiSwim BASE asks for nothing beyond the download.

FAST! ships an update every 3 days, OptiSwim BASE weekly. The most recent releases landed on October 30, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | FAST! | OptiSwim BASE |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 days** | Weekly |
| Monetization | Subscription | — |
| Size | 128 MB | 5 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [TNQ Tech, Co.](https://appshunter.io/developer/1817559824) | [LLC. ATHLIVIA](https://appshunter.io/developer/1876379379) |

## 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 |


### OptiSwim BASE

[App page](https://appshunter.io/ios/app/optiswim-base/id6802260227)

**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 OptiSwim BASE free?

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

### Do FAST! or OptiSwim BASE have ads?

Neither FAST! nor OptiSwim BASE shows ads.

### Which is updated more often, FAST! or OptiSwim BASE?

FAST! ships an update every 3 days, and OptiSwim BASE weekly. Most recently, FAST! was updated on October 30, 2026 and OptiSwim BASE on October 25, 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.*