# Ems Rhythmic vs HeyCyan

The clearest difference is update cadence: HeyCyan at every 3 weeks against Ems Rhythmic's every 7 months. HeyCyan also leads on device support and iOS requirement (13.0 vs 15.6). On price and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Ems Rhythmic ships an update every 7 months, HeyCyan every 3 weeks. The most recent releases landed on October 2, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Ems Rhythmic | HeyCyan |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.7 (308 ratings)](https://appshunter.io/ios/app/heycyan/id6742974094/reviews)** |
| Number of ratings | — | **308** |
| Positive reviews | — | 24.3% of reviews |
| In-app purchases | No | No |
| Ads | — | No |
| Update frequency | Every 7 months | **Every 3 weeks** |
| Monetization | — | Free |
| Size | 3 MB | 248 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | — | **iPhone, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [双超 陈](https://appshunter.io/developer/1454216279) | [Shenzhen Qingcheng Future Technology Co., Ltd.](https://appshunter.io/developer/1800632657) |

## What reviewers say

### Ems Rhythmic

[App page](https://appshunter.io/ios/app/ems-rhythmic/id1482925327)

**In-app purchases:** none


### HeyCyan

[App page](https://appshunter.io/ios/app/heycyan/id6742974094)

Connect your smart glasses to your smartphone for enhanced control and functionality. Manage settings, monitor battery and network, and access AI agents directly from your phone.

**Highlights:** Bluetooth pairing and control, Battery and network monitoring, WiFi hotspot creation, Media management (photos, calls), AI agent integration

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

**In-app purchases:** none


## Frequently asked questions

### Is Ems Rhythmic free?

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

### Is HeyCyan free?

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

### Which is updated more often, Ems Rhythmic or HeyCyan?

Ems Rhythmic ships an update every 7 months, and HeyCyan every 3 weeks. Most recently, Ems Rhythmic was updated on October 2, 2026 and HeyCyan on October 21, 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.*