# BWI vs Miryel

The clearest difference is in-app purchases: BWI at none against Miryel's 3. BWI also leads on iOS requirement (13.0 vs 15.1). Miryel's advantage is update cadence (every 2 weeks vs every 2 months). On price, ads and device support there is nothing between them.

Both are free to download. Miryel sells 3 in-app purchases, starting at $2.99 per 7 days. BWI asks for nothing beyond the download.

BWI ships an update every 2 months, Miryel every 2 weeks. The most recent releases landed on October 14, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | BWI | Miryel |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 25 MB | 65 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [TBB Power Co., Ltd](https://appshunter.io/developer/1089239531) | [MATHYS DUPONT](https://appshunter.io/developer/1817366087) |

## What reviewers say

### BWI

[App page](https://appshunter.io/ios/app/bwi-pm400/id1436461203)

This app provides centralized monitoring and control for vehicle electrical, water, and equipment systems. It enables scene modes for coordinated multi-load interaction and automatic load control based on various environmental factors. The system includes self-protection against circuit faults and diagnostic alerts.

**Highlights:** Real-time monitoring of electrical, water, and equipment, Centralized control of vehicle systems, Scene modes for coordinated load interaction, Automatic load control based on environmental factors, Circuit fault self-protection, Diagnostic and alarm functions

**Features:** macOS Compatibility

**In-app purchases:** none


### Miryel

[App page](https://appshunter.io/ios/app/miryel/id6746539668)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Nox premium - weekly | $2.99 | per 7 days |
| Nox premium - monthly | $6.99 | per month |
| Nox premium - yearly | $59.99 | per year |


## Frequently asked questions

### Is BWI free?

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

### Is Miryel free?

Miryel is free to download, with in-app purchases available.

### Do BWI or Miryel have ads?

Neither BWI nor Miryel shows ads.

### Which is updated more often, BWI or Miryel?

BWI ships an update every 2 months, and Miryel every 2 weeks. Most recently, BWI was updated on October 14, 2026 and Miryel on October 30, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*