# Flutter Builder vs JACK BT

The clearest difference is price: JACK BT at Free against Flutter Builder's $3.99. Flutter Builder's advantage is chart position (#27 vs unranked) and update cadence (monthly vs every 2 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

JACK BT is free to download; Flutter Builder costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Flutter Builder ships an update monthly, JACK BT every 2 months. The most recent releases landed on October 9, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Flutter Builder | JACK BT |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | Paid | — |
| Best chart rank | **#27** | — |
| Size | 58 MB | 23 MB |
| Requires iOS | **13.0** | 13.1 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [上海烨鑫信息科技有限公司](https://appshunter.io/developer/1490375523) | [Esseci Srl](https://appshunter.io/developer/1538950770) |

## What reviewers say

### Flutter Builder

[App page](https://appshunter.io/ios/app/flutter-builder/id6504612819)

**Currently charting:** #27 Top Paid · Developer Tools (US App Store)

This visual development tool simplifies app creation for Flutter developers. It offers an intuitive graphical programming interface, making it accessible for both beginners and experienced professionals to build applications quickly.

**Highlights:** Visual development environment, Graphical programming pattern, Intuitive interface, Rapid application building, Suitable for beginners and professionals

**Features:** Vision Pro support

**In-app purchases:** none


### JACK BT

[App page](https://appshunter.io/ios/app/jack-bt/id6550919814)

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

**In-app purchases:** none


## Frequently asked questions

### Is Flutter Builder free?

Flutter Builder costs $3.99, with no in-app purchases.

### Is JACK BT free?

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

### Do Flutter Builder or JACK BT have ads?

Neither Flutter Builder nor JACK BT shows ads.

### Which is updated more often, Flutter Builder or JACK BT?

Flutter Builder ships an update monthly, and JACK BT every 2 months. Most recently, Flutter Builder was updated on October 9, 2026 and JACK BT on October 8, 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.*