# Flutter Builder vs iRTSP

The clearest difference is update cadence: iRTSP at every 2 days against Flutter Builder's monthly. Flutter Builder's advantage is device support (4 vs 1) and iOS requirement (13.0 vs 17.0). On price, ads, in-app purchases and chart position there is nothing between them.

Flutter Builder costs $3.99 and iRTSP $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Flutter Builder ships an update monthly, iRTSP every 2 days. The most recent releases landed on October 9, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Flutter Builder | iRTSP |
| --- | --- | --- |
| Price | $3.99 | $3.99 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 days** |
| Monetization | Paid | — |
| Best chart rank | **#113** | #166 |
| Size | 58 MB | 6 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [上海烨鑫信息科技有限公司](https://appshunter.io/developer/1490375523) | [Ryan Rudes](https://appshunter.io/developer/1698870132) |

## What reviewers say

### Flutter Builder

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

**Currently charting:** #113 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


### iRTSP

[App page](https://appshunter.io/ios/app/irtsp/id6789029918)

**Currently charting:** #166 Top Paid · Developer Tools (US App Store)

**In-app purchases:** none


## Frequently asked questions

### Is Flutter Builder free?

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

### Is iRTSP free?

iRTSP costs $3.99, with no in-app purchases.

### Do Flutter Builder or iRTSP have ads?

Neither Flutter Builder nor iRTSP shows ads.

### Which is updated more often, Flutter Builder or iRTSP?

Flutter Builder ships an update monthly, and iRTSP every 2 days. Most recently, Flutter Builder was updated on October 9, 2026 and iRTSP on October 10, 2026.

### Which is more popular, Flutter Builder or iRTSP?

Flutter Builder currently peaks at #113 in the App Store charts, and iRTSP at #166. Chart position reflects recent download velocity rather than total install base.

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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.*