# EtchRock vs Byw'n Iach

The clearest difference is review sentiment: EtchRock at 40% against Byw'n Iach's 0%. EtchRock also leads on update cadence (every 2 weeks vs every 3 months) and iOS requirement (10.3 vs 15.0). On price, ads, in-app purchases and monetization model there is nothing between them.

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

EtchRock ships an update every 2 weeks, Byw'n Iach every 3 months. The most recent releases landed on October 8, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | EtchRock | Byw'n Iach |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **40.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 3 months |
| Monetization | Free | Free |
| Size | 43 MB | 105 MB |
| Requires iOS | **10.3** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Etch Rock Limited](https://appshunter.io/developer/1284701586) | [BYW'N IACH CYF](https://appshunter.io/developer/1624960780) |

## What reviewers say

### EtchRock

[App page](https://appshunter.io/ios/app/etchrock/id1284701587)

Find local endurance events, follow organizers for new event alerts, and connect with friends to see their event participation. Access tickets and event details, and integrate with fitness apps for training.

**Highlights:** Discover local endurance events, Follow event organizers for notifications, Connect with friends and see their events, Access digital event tickets, Integrate with fitness apps (Strava, Fitbit, Runkeeper), Customize user profile, Post training updates and photos

**Features:** macOS Compatibility

**In-app purchases:** none


### Byw'n Iach

[App page](https://appshunter.io/ios/app/bywn-iach/id1624960778)

Easily book fitness classes and activities, view timetables, and get real-time updates on news, offers, and events. Stay informed about your local fitness center's offerings and never miss an important announcement.

**Highlights:** Book fitness classes and activities, Real-time class and swim timetables, Check availability and manage bookings, Receive news and event notifications, View center information and offers, Integrates with Apple HealthKit

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is EtchRock free?

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

### Is Byw'n Iach free?

Byw'n Iach is free to download, with no in-app purchases.

### Do EtchRock or Byw'n Iach have ads?

Neither EtchRock nor Byw'n Iach shows ads.

### Which is updated more often, EtchRock or Byw'n Iach?

EtchRock ships an update every 2 weeks, and Byw'n Iach every 3 months. Most recently, EtchRock was updated on October 8, 2026 and Byw'n Iach 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.*