# S vs ZenRing

The clearest difference is update cadence: ZenRing at fortnightly against S's every 8 months. 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.

S ships an update every 8 months, ZenRing fortnightly. The most recent releases landed on October 20, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | S | ZenRing |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/zenring/id6479628518/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Fortnightly** |
| Monetization | — | Free |
| Size | 14 MB | 66 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Starsprings AB](https://appshunter.io/developer/1571251315) | [KMAC Consulting LLC](https://appshunter.io/developer/1736660318) |

## What reviewers say

### S

[App page](https://appshunter.io/ios/app/s-matic-20/id1577313258)

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

**In-app purchases:** none


### ZenRing

[App page](https://appshunter.io/ios/app/zenring/id6479628518)

Manage your wearable devices and track your sports health data, including steps, calories, sleep, and workouts. It provides a readiness score based on your recovery, activity, and sleep patterns to help you adjust your training.

**Highlights:** Device binding management, Health data recording (steps, calories, sleep), Readiness score calculation, Workout data display, Day, month, and year data viewing

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is S free?

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

### Is ZenRing free?

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

### Do S or ZenRing have ads?

Neither S nor ZenRing shows ads.

### Which is updated more often, S or ZenRing?

S ships an update every 8 months, and ZenRing fortnightly. Most recently, S was updated on October 20, 2026 and ZenRing on October 24, 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.*