# Shielding Tester vs ECSig

The clearest difference is update cadence: ECSig at every 3 months against Shielding Tester's every 7 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.

Shielding Tester ships an update every 7 months, ECSig every 3 months. The most recent releases landed on September 27, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Shielding Tester | 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 7 months | **Every 3 months** |
| Monetization | — | Free |
| Size | 13 MB | 29 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Velter KZ](https://appshunter.io/developer/1781938634) | [Ecsite Inc](https://appshunter.io/developer/1529398875) |

## What reviewers say

### Shielding Tester

[App page](https://appshunter.io/ios/app/shielding-tester/id6444835317)

**Features:** 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 Shielding Tester free?

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

### Is ECSig free?

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

### Do Shielding Tester or ECSig have ads?

Neither Shielding Tester nor ECSig shows ads.

### Which is updated more often, Shielding Tester or ECSig?

Shielding Tester ships an update every 7 months, and ECSig every 3 months. Most recently, Shielding Tester was updated on September 27, 2026 and ECSig on October 10, 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.*