# Edison vs GST Sparkle

The clearest difference is update cadence: GST Sparkle at every 2 months against Edison's every 39 months. Edison's advantage is iOS requirement (11.0 vs 15.0). 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.

Edison ships an update every 39 months, GST Sparkle every 2 months. The most recent releases landed on October 19, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Edison | GST Sparkle |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 39 months | **Every 2 months** |
| Size | 191 MB | 35 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [德忠 曾](https://appshunter.io/developer/1043455031) | [海湾安全技术有限公司](https://appshunter.io/developer/1389703268) |

## What reviewers say

### Edison

[App page](https://appshunter.io/ios/app/edison/id1531838986)

**Features:** macOS Compatibility

**In-app purchases:** none


### GST Sparkle

[App page](https://appshunter.io/ios/app/gst-sparkle/id1546031888)

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

**In-app purchases:** none


## Frequently asked questions

### Is Edison free?

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

### Is GST Sparkle free?

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

### Do Edison or GST Sparkle have ads?

Neither Edison nor GST Sparkle shows ads.

### Which is updated more often, Edison or GST Sparkle?

Edison ships an update every 39 months, and GST Sparkle every 2 months. Most recently, Edison was updated on October 19, 2026 and GST Sparkle on October 13, 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.*