# Flutter Builder vs Java Prep

The clearest difference is price: Java Prep at Free against Flutter Builder's $3.99. Flutter Builder's advantage is in-app purchases (none vs 3) and chart position (#116 vs unranked). On update cadence, ads and device support there is nothing between them.

Java Prep is free to download; Flutter Builder costs $3.99 up front. Java Prep sells 3 in-app purchases, starting at $0.99 per month. Flutter Builder asks for nothing beyond the download.

Flutter Builder ships an update monthly, Java Prep every 6 weeks. The most recent releases landed on September 23, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | Flutter Builder | Java Prep |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Monthly** | Every 6 weeks |
| Monetization | Paid | — |
| Best chart rank | **#116** | — |
| Size | 58 MB | 17 MB |
| Requires iOS | **13.0** | 16 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [上海烨鑫信息科技有限公司](https://appshunter.io/developer/1490375523) | [嘉 邱](https://appshunter.io/developer/1708883953) |

## What reviewers say

### Flutter Builder

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

**Currently charting:** #116 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


### Java Prep

[App page](https://appshunter.io/ios/app/java-prep/id6748876631)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Membership | $0.99 | per month |
| Quarterly Membership | $2.99 | per 3 months |
| Semi-Annual Membership | $5.99 | per 6 months |


## Frequently asked questions

### Is Flutter Builder free?

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

### Is Java Prep free?

Java Prep is free to download, with in-app purchases available.

### Do Flutter Builder or Java Prep have ads?

Neither Flutter Builder nor Java Prep shows ads.

### Which is updated more often, Flutter Builder or Java Prep?

Flutter Builder ships an update monthly, and Java Prep every 6 weeks. Most recently, Flutter Builder was updated on September 23, 2026 and Java Prep on September 14, 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.*