# YY BMS vs CHIGEE

The clearest difference is update cadence: CHIGEE at every 10 days against YY BMS's every 6 weeks. 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.

YY BMS ships an update every 6 weeks, CHIGEE every 10 days. The most recent releases landed on September 21, 2026 and August 20, 2026 respectively.

## The numbers

| Metric | YY BMS | CHIGEE |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (2 ratings)](https://appshunter.io/ios/app/chigee/id1598719965/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 42.9% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 10 days** |
| Monetization | — | Free |
| Size | 30 MB | 76 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Wuhan Yanyang IoT Technology Co., Ltd.](https://appshunter.io/developer/1573509034) | [CHIGEE Technology Co.,Ltd.](https://appshunter.io/developer/1587547133) |

## What reviewers say

### YY BMS

[App page](https://appshunter.io/ios/app/yy-bms/id1574291362)

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

**In-app purchases:** none


### CHIGEE

[App page](https://appshunter.io/ios/app/chigee/id1598719965)

Enhance your AIO-5 vehicle's smart experience with this app, offering comprehensive features for a vibrant riding life. Monitor vehicle status, track your location and rides, record driving footage, and receive important alerts for maintenance and security.

**Highlights:** Vehicle condition monitoring (fuel, alarms, voltage), GPS tracking and ride history, Driving video and photo recording, Maintenance and vehicle alerts, Security alerts (vibration, geofencing)

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

**In-app purchases:** none


## Frequently asked questions

### Is YY BMS free?

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

### Is CHIGEE free?

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

### Do YY BMS or CHIGEE have ads?

Neither YY BMS nor CHIGEE shows ads.

### Which is updated more often, YY BMS or CHIGEE?

YY BMS ships an update every 6 weeks, and CHIGEE every 10 days. Most recently, YY BMS was updated on September 21, 2026 and CHIGEE on August 20, 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.*