# VSG101 Update vs ECSig

The clearest difference is update cadence: VSG101 Update at every 5 weeks against ECSig's every 3 months. 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.

VSG101 Update ships an update every 5 weeks, ECSig every 3 months. The most recent releases landed on October 1, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | VSG101 Update | ECSig |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/ecsig/id6737245267/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 3 months |
| Monetization | — | Free |
| Size | 1 MB | 29 MB |
| Requires iOS | 16.6 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [VITALSIGNS TECHNOLOGY CO., LTD.](https://appshunter.io/developer/1394370436) | [Ecsite Inc](https://appshunter.io/developer/1529398875) |

## What reviewers say

### VSG101 Update

[App page](https://appshunter.io/ios/app/vsg101-update/id1628054504)

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

**In-app purchases:** none


### ECSig

[App page](https://appshunter.io/ios/app/ecsig/id6737245267)

This app provides a user-friendly interface to control RF signal generator devices. It allows precise customization of signal frequency and power output across multiple channels via a Bluetooth connection.

**Highlights:** Bluetooth device connection, Control 4-8 individual channels, Customize frequency and power, Save and recall device profiles, Intuitive professional interface

**In-app purchases:** none


## Frequently asked questions

### Is VSG101 Update free?

VSG101 Update is free to download, with no in-app purchases.

### Is ECSig free?

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

### Do VSG101 Update or ECSig have ads?

Neither VSG101 Update nor ECSig shows ads.

### Which is updated more often, VSG101 Update or ECSig?

VSG101 Update ships an update every 5 weeks, and ECSig every 3 months. Most recently, VSG101 Update was updated on October 1, 2026 and ECSig on September 23, 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.*