# Signal Fire（灼识掌中宝） vs ScanNet

The clearest difference is in-app purchases: Signal Fire（灼识掌中宝） at none against ScanNet's 1. Signal Fire（灼识掌中宝） also leads on ads (none vs shown) and review sentiment (100% vs 79%). On price, update cadence and device support there is nothing between them.

Both are free to download. ScanNet sells 1 one-off in-app purchase. Signal Fire（灼识掌中宝） asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 29, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Signal Fire（灼识掌中宝） | ScanNet |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (358 ratings)](https://appshunter.io/ios/app/scannet-network-scanner/id1589765618/reviews)** |
| Number of ratings | — | **358** |
| Positive reviews | **100.0% of reviews** | 78.6% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 45 MB | 3 MB |
| Requires iOS | **12.0** | 17.2 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [SIGNAL FIRE TECHNOLOGY CO., LTD.](https://appshunter.io/developer/1002338331) | [Oleg Gutlyanskiy](https://appshunter.io/developer/1589765620) |

## What reviewers say

### Signal Fire（灼识掌中宝）

[App page](https://appshunter.io/ios/app/signal-fire/id1002338332)

This utility app connects to an automatic optical fiber fusion splicer via Wi-Fi. It offers precise control for splicing single-mode and multimode optical fibers, with features like voice broadcast and adjustable splicing modes for enhanced accuracy.

**Highlights:** Wi-Fi connectivity to fusion splicer, Single-mode and multimode fiber splicing, Accurate voice broadcast of fiber face judgment, Normal and high-accuracy splicing modes, Discharge calibration for precise splicing

**In-app purchases:** none


### ScanNet

[App page](https://appshunter.io/ios/app/scannet-network-scanner/id1589765618)

Discover all devices connected to your network, whether at home or in a specified IP range. Gain insights into each device and its activity, useful for both casual users and IT professionals. Features include port checking, multiple scan modes, and advanced search capabilities.

**Highlights:** Find all network hosts, Check open ports during scan, Multiple scan modes (ARP, ICMP, UDP, DNS), Advanced host search, Save and open device lists, Includes ping, traceroute, port scanner

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium features | $3.99 | one-time |


## Frequently asked questions

### Is Signal Fire（灼识掌中宝） free?

Signal Fire（灼识掌中宝） is free to download, with no in-app purchases.

### Is ScanNet free?

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

### Do Signal Fire（灼识掌中宝） or ScanNet have ads?

ScanNet shows ads; Signal Fire（灼识掌中宝） does not.

### Which is updated more often, Signal Fire（灼识掌中宝） or ScanNet?

Signal Fire（灼识掌中宝） ships an update every 2 months, and ScanNet every 2 months. Most recently, Signal Fire（灼识掌中宝） was updated on October 29, 2026 and ScanNet 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.*