# Flutter Tools & UI Builder Pro vs SketchSite

The clearest difference is in-app purchases: SketchSite at none against Flutter Tools & UI Builder Pro's 1. SketchSite also leads on update cadence (daily vs every 2 weeks). Flutter Tools & UI Builder Pro's advantage is iOS requirement (13.0 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. Flutter Tools & UI Builder Pro sells 1 one-off in-app purchase. SketchSite asks for nothing beyond the download.

Flutter Tools & UI Builder Pro ships an update every 2 weeks, SketchSite daily. The most recent releases landed on September 21, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Flutter Tools & UI Builder Pro | SketchSite |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Daily** |
| Size | 67 MB | 4 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Thiem Nguyen](https://appshunter.io/developer/1658699065) | [Tyler Schmidt](https://appshunter.io/developer/1828277740) |

## What reviewers say

### Flutter Tools & UI Builder Pro

[App page](https://appshunter.io/ios/app/flutter-tools-and-ui-builder-pro/id6499068488)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Lifetime | $6.99 | one-time |


### SketchSite

[App page](https://appshunter.io/ios/app/sketchsite/id6748966984)

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

**In-app purchases:** none


## Frequently asked questions

### Is Flutter Tools & UI Builder Pro free?

Flutter Tools & UI Builder Pro is free to download, with in-app purchases available.

### Is SketchSite free?

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

### Do Flutter Tools & UI Builder Pro or SketchSite have ads?

Neither Flutter Tools & UI Builder Pro nor SketchSite shows ads.

### Which is updated more often, Flutter Tools & UI Builder Pro or SketchSite?

Flutter Tools & UI Builder Pro ships an update every 2 weeks, and SketchSite daily. Most recently, Flutter Tools & UI Builder Pro was updated on September 21, 2026 and SketchSite on September 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.*