# SIAECOSYS vs JK BMS

The clearest difference is update cadence: SIAECOSYS at every 3 days against JK BMS's weekly. SIAECOSYS also leads on iOS requirement (8.0 vs 15.6). 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.

SIAECOSYS ships an update every 3 days, JK BMS weekly. The most recent releases landed on October 2, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | SIAECOSYS | JK BMS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.1 (8 ratings)](https://appshunter.io/ios/app/jk-bms/id6773679719/reviews)** |
| Number of ratings | — | **8** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 days** | Weekly |
| Monetization | — | Free |
| Size | 3 MB | 17 MB |
| Requires iOS | **8.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Teranovo](https://appshunter.io/developer/1250774924) | [鹏 张](https://appshunter.io/developer/1425725690) |

## What reviewers say

### SIAECOSYS

[App page](https://appshunter.io/ios/app/siaecosys/id1523245271)

**Features:** macOS Compatibility

**In-app purchases:** none


### JK BMS

[App page](https://appshunter.io/ios/app/jk-bms/id6773679719)

This utility app connects via Bluetooth to an active balancer for battery management. It allows for real-time monitoring of system status, setting operational parameters, and controlling battery management devices.

**Highlights:** Real-time status monitoring, Running parameter settings, Battery management system device control, Bluetooth connectivity, Active balancer integration

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

**In-app purchases:** none


## Frequently asked questions

### Is SIAECOSYS free?

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

### Is JK BMS free?

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

### Do SIAECOSYS or JK BMS have ads?

Neither SIAECOSYS nor JK BMS shows ads.

### Which is updated more often, SIAECOSYS or JK BMS?

SIAECOSYS ships an update every 3 days, and JK BMS weekly. Most recently, SIAECOSYS was updated on October 2, 2026 and JK BMS 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.*