# Remote4 vs Function Fitter

The clearest difference is update cadence: Function Fitter at monthly against Remote4's every 3 months. Remote4's advantage is iOS requirement (12.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Remote4 ships an update every 3 months, Function Fitter monthly. The most recent releases landed on July 26, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Remote4 | Function Fitter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.9 (25 ratings)](https://appshunter.io/ios/app/remote4-rtsp-camera-viewer/id1037093230/reviews)** | — |
| Number of ratings | **25** | — |
| Positive reviews | 61.1% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Monthly** |
| Monetization | Free | — |
| Size | 43 MB | 4 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Maximo Cavazzani](https://appshunter.io/developer/1037093229) | [29Apps LLC](https://appshunter.io/developer/1817021563) |

## What reviewers say

### Remote4

[App page](https://appshunter.io/ios/app/remote4-rtsp-camera-viewer/id1037093230)

View your RTSP cameras in real-time and control connected devices with custom buttons. This free app allows for multiple camera feeds and interactive controls, ideal for IoT enthusiasts and home automation.

**Highlights:** Real-time RTSP camera viewing, HTTP/HTTPS request buttons for device control, Multi-camera support via VLC, Customizable UI elements (buttons, text, emojis), Copy/paste controls for backup and sharing, Remote configuration via JSON URL, JSON data source integration

**Features:** macOS Compatibility

**In-app purchases:** none


### Function Fitter

[App page](https://appshunter.io/ios/app/function-fitter/id6748284369)

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

**In-app purchases:** none


## Frequently asked questions

### Is Remote4 free?

Remote4 is free to download, with no in-app purchases.

### Is Function Fitter free?

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

### Do Remote4 or Function Fitter have ads?

Neither Remote4 nor Function Fitter shows ads.

### Which is updated more often, Remote4 or Function Fitter?

Remote4 ships an update every 3 months, and Function Fitter monthly. Most recently, Remote4 was updated on July 26, 2026 and Function Fitter on September 9, 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.*