# BisidaBMS vs Aray Ess

BisidaBMS and Aray Ess are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

BisidaBMS ships an update every 4 months, Aray Ess every 3 months. The most recent releases landed on October 10, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | BisidaBMS | Aray Ess |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 months** |
| Size | 46 MB | 29 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 9+ |
| Developer | [文校 赖](https://appshunter.io/developer/1747731516) | [深圳市傲雷新能源科技有限公司](https://appshunter.io/developer/1830665558) |

## What reviewers say

### BisidaBMS

[App page](https://appshunter.io/ios/app/bisidabms/id6504409290)

**Features:** macOS Compatibility

**In-app purchases:** none


### Aray Ess

[App page](https://appshunter.io/ios/app/aray-ess/id6752018449)

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

**In-app purchases:** none


## Frequently asked questions

### Is BisidaBMS free?

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

### Is Aray Ess free?

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

### Do BisidaBMS or Aray Ess have ads?

Neither BisidaBMS nor Aray Ess shows ads.

### Which is updated more often, BisidaBMS or Aray Ess?

BisidaBMS ships an update every 4 months, and Aray Ess every 3 months. Most recently, BisidaBMS was updated on October 10, 2026 and Aray Ess on October 8, 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.*