# Flutter Tools & UI Builder Pro vs KMPProto

The clearest difference is in-app purchases: KMPProto at none against Flutter Tools & UI Builder Pro's 1. Flutter Tools & UI Builder Pro's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 18.0). On price and ads there is nothing between them.

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

## The numbers

| Metric | Flutter Tools & UI Builder Pro | KMPProto |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | — |
| Size | 67 MB | 47 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Thiem Nguyen](https://appshunter.io/developer/1658699065) | [Anton Fedorych](https://appshunter.io/developer/6797246232) |

## 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 |


### KMPProto

[App page](https://appshunter.io/ios/app/kmpproto/id6797246230)

**Features:** macOS Compatibility

**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 KMPProto free?

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

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

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

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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.*