# Signalfire2 vs VST

The clearest difference is rating: Signalfire2 at 3.4 against VST's 3.0. Signalfire2 also leads on ratings volume (9 vs 2). VST's advantage is iOS requirement (12.0 vs 16.0). On price, update cadence, ads and in-app purchases there is nothing between them.

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

Signalfire2 holds the better App Store score, 3.4 against 3.0. Both are backed by a comparable volume of ratings — 9 and 2 respectively.

Signalfire2 ships an update every 11 days, VST fortnightly. The most recent releases landed on November 2, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Signalfire2 | VST |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.4 (9 ratings)](https://appshunter.io/ios/app/signalfire2/id1250308443/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/vst/id6529525425/reviews) |
| Number of ratings | **9** | 2 |
| Positive reviews | 26.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 11 days** | Fortnightly |
| Monetization | Free | Free |
| Size | 37 MB | 53 MB |
| Requires iOS | 16.0 | **12.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [SIGNAL FIRE TECHNOLOGY CO., LTD.](https://appshunter.io/developer/1002338331) | [Guangzhou V-solution Telecommunication Technology Co., Ltd.](https://appshunter.io/developer/1728375344) |

## What reviewers say

### Signalfire2

[App page](https://appshunter.io/ios/app/signalfire2/id1250308443)

This utility app connects to fiber optical fusion splicers via Bluetooth, allowing for seamless data transmission to your mobile device. It enables synchronized updates of splicing machine settings directly from your phone's parameter settings.

**Highlights:** Bluetooth connectivity to fusion splicers, Real-time data transmission, Synchronized setting updates, Parameter configuration, Mobile device control

**Features:** Vision Pro support

**In-app purchases:** none


### VST

[App page](https://appshunter.io/ios/app/vst/id6529525425)

This utility app allows users to manage VSOL company's terminal devices. It provides essential tools for overseeing and controlling these devices within the company's network.

**Highlights:** Terminal device management, VSOL company specific, Device control tools, Network oversight

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

**In-app purchases:** none


## Frequently asked questions

### Is Signalfire2 free?

Signalfire2 is free to download, with no in-app purchases.

### Is VST free?

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

### Which has better reviews, Signalfire2 or VST?

Signalfire2 is rated higher. Signalfire2 averages 3.4 out of 5 from 9 ratings, while VST averages 3.0 from 2 ratings.

### Do Signalfire2 or VST have ads?

Neither Signalfire2 nor VST shows ads.

### Which is updated more often, Signalfire2 or VST?

Signalfire2 ships an update every 11 days, and VST fortnightly. Most recently, Signalfire2 was updated on November 2, 2026 and VST on October 30, 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.*