# ECSig vs Synchrony Light

The clearest difference is update cadence: ECSig at every 3 months against Synchrony Light's every 10 months. Synchrony Light's advantage is iOS requirement (12.0 vs 15.1). 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, Synchrony Light every 10 months. The most recent releases landed on August 15, 2026 and August 18, 2026 respectively.

## The numbers

| Metric | ECSig | Synchrony Light |
| --- | --- | --- |
| 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 10 months |
| Monetization | Free | — |
| Size | 29 MB | 35 MB |
| Requires iOS | 15.1 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ecsite Inc](https://appshunter.io/developer/1529398875) | [OYMotion Technologies Co., Ltd](https://appshunter.io/developer/1651182941) |

## 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


### Synchrony Light

[App page](https://appshunter.io/ios/app/synchrony-light/id6737887210)

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

**In-app purchases:** none


## Frequently asked questions

### Is ECSig free?

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

### Is Synchrony Light free?

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

### Do ECSig or Synchrony Light have ads?

Neither ECSig nor Synchrony Light shows ads.

### Which is updated more often, ECSig or Synchrony Light?

ECSig ships an update every 3 months, and Synchrony Light every 10 months. Most recently, ECSig was updated on August 15, 2026 and Synchrony Light on August 18, 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.*