# Si vs Stoplight Golight

The clearest difference is update cadence: Si at every 5 months against Stoplight Golight's every 21 months. Si also leads on iOS requirement (9.1 vs 13.0). 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.

Si ships an update every 5 months, Stoplight Golight every 21 months. The most recent releases landed on October 10, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Si | Stoplight Golight |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.6 (9 ratings)](https://appshunter.io/ios/app/stoplight-golight/id1548001843/reviews)** |
| Number of ratings | — | **9** |
| Positive reviews | — | 83.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 months** | Every 21 months |
| Monetization | — | Free |
| Size | 12 MB | 20 MB |
| Requires iOS | **9.1** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [旭日东方](https://appshunter.io/developer/1472957256) | [Charlotte Wenham](https://appshunter.io/developer/1548001845) |

## What reviewers say

### Si

[App page](https://appshunter.io/ios/app/si-link/id1484583420)

**Features:** macOS Compatibility

**In-app purchases:** none


### Stoplight Golight

[App page](https://appshunter.io/ios/app/stoplight-golight/id1548001843)

This companion app offers remote control and customizable settings for a kids' timer device. Manage screen time, homework, or classroom activities with ease, setting precise end times and adjusting notifications for clear time signals.

**Highlights:** Remote Bluetooth control, Customizable end times, Adjustable notification colors, Manage daily routines, Flexible for home, school, and sports

**In-app purchases:** none


## Frequently asked questions

### Is Si free?

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

### Is Stoplight Golight free?

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

### Do Si or Stoplight Golight have ads?

Neither Si nor Stoplight Golight shows ads.

### Which is updated more often, Si or Stoplight Golight?

Si ships an update every 5 months, and Stoplight Golight every 21 months. Most recently, Si was updated on October 10, 2026 and Stoplight Golight on October 11, 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.*