# ECSig vs ChatCat

The clearest difference is update cadence: ECSig at every 3 months against ChatCat's every 11 months. ECSig also leads on iOS requirement (15.1 vs 18.0). 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.

ECSig ships an update every 3 months, ChatCat every 11 months. The most recent releases landed on October 10, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | ECSig | ChatCat |
| --- | --- | --- |
| 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 3 months** | Every 11 months |
| Monetization | Free | — |
| Size | 29 MB | 11 MB |
| Requires iOS | **15.1** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Ecsite Inc](https://appshunter.io/developer/1529398875) | [茵 吕](https://appshunter.io/developer/1337000923) |

## What reviewers say

### 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


### ChatCat

[App page](https://appshunter.io/ios/app/chatcat-ai-chatbot/id6742164947)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ECSig free?

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

### Is ChatCat free?

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

### Do ECSig or ChatCat have ads?

Neither ECSig nor ChatCat shows ads.

### Which is updated more often, ECSig or ChatCat?

ECSig ships an update every 3 months, and ChatCat every 11 months. Most recently, ECSig was updated on October 10, 2026 and ChatCat on October 5, 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.*