# Slint Viewer vs Semaphore Remote

The clearest difference is update cadence: Semaphore Remote at every 4 days against Slint Viewer's every 6 weeks. Slint Viewer's advantage is iOS requirement (16.6 vs 26.5). 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.

Slint Viewer ships an update every 6 weeks, Semaphore Remote every 4 days. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Slint Viewer | Semaphore Remote |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/slint-viewer/id6773729654/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 4 days** |
| Monetization | Free | — |
| Size | 49 MB | 9 MB |
| Requires iOS | **16.6** | 26.5 |
| Devices | iPhone, iPad | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [SixtyFPS GmbH](https://appshunter.io/developer/1757134627) | [Alessandro Iannacone](https://appshunter.io/developer/1896629136) |

## What reviewers say

### Slint Viewer

[App page](https://appshunter.io/ios/app/slint-viewer/id6773729654)

This developer tool allows you to preview Slint user interfaces directly on your iPhone or iPad. It connects to your code editor over a local network, displaying your .slint designs live as you make changes. Some programming experience is recommended for optimal use.

**Highlights:** Live UI preview on iOS, Connects to code editor, Real-time design updates, Supports Slint toolkit

**Features:** macOS Compatibility

**In-app purchases:** none


### Semaphore Remote

[App page](https://appshunter.io/ios/app/semaphore-remote/id6782102335)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Slint Viewer free?

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

### Is Semaphore Remote free?

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

### Do Slint Viewer or Semaphore Remote have ads?

Neither Slint Viewer nor Semaphore Remote shows ads.

### Which is updated more often, Slint Viewer or Semaphore Remote?

Slint Viewer ships an update every 6 weeks, and Semaphore Remote every 4 days. Most recently, Slint Viewer was updated on October 24, 2026 and Semaphore Remote on October 28, 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.*