# Sigma Ring vs SR

The clearest difference is update cadence: Sigma Ring at every 5 days against SR's every 2 weeks. Sigma Ring also leads on iOS requirement (12.0 vs 14.0). 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.

Sigma Ring ships an update every 5 days, SR every 2 weeks. The most recent releases landed on September 19, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Sigma Ring | SR |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 2 weeks |
| Size | 150 MB | 22 MB |
| Requires iOS | **12.0** | 14.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Apps Group LLC](https://appshunter.io/developer/1433886982) | [SuccessResources](https://appshunter.io/developer/857283919) |

## What reviewers say

### Sigma Ring

[App page](https://appshunter.io/ios/app/sigma-ring/id6746449445)

**Features:** macOS Compatibility

**In-app purchases:** none


### SR

[App page](https://appshunter.io/ios/app/sr-circle/id6751103734)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Sigma Ring free?

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

### Is SR free?

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

### Do Sigma Ring or SR have ads?

Neither Sigma Ring nor SR shows ads.

### Which is updated more often, Sigma Ring or SR?

Sigma Ring ships an update every 5 days, and SR every 2 weeks. Most recently, Sigma Ring was updated on September 19, 2026 and SR on September 23, 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.*