Trimm 420 vs YX BLE
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Trimm 420
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A rig trim simulation app for small sailing boats like the 420 class. Built in data is for the 420, but can be adapted for similar boats. You can use a note in the Notes app to hold text data for this app and then use copy and paste. Read on the website about the data format.
YX BLE
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通过手机蓝牙搜索并连接外围BMS设备,采集外围BMS设备的电池数据。采集的数据有SOH,SOC,总电压,总电流,充放电循环次数,电池各个部位的温度,电池中每个电芯的单体电压,电池产品的保护状态和电池产品某些功能是否正常工作的信息。相关的硬件产品就是带电池管理系统的电池包。 Search and connect to peripheral BMS devices through mobile Bluetooth, and collect battery data of peripheral BMS devices. The collected data includes SOH, SOC, total voltage, total current, number of charging and discharging cycles, temperature of various parts of the battery, individual voltage of each cell in the battery, protection status of the battery product, and information on whether certain functions of the battery product are working properly. The relevant hardware product is a battery protection board with a battery management system.
Screenshots
Verdict
The clearest difference is update cadence: YX BLE at monthly against Trimm 420's every 18 months. Trimm 420's advantage is iOS requirement (11.0 vs 13.0). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Trimm 420 ships an update every 18 months, YX BLE monthly. The most recent releases landed on October 26, 2026 and October 3, 2026 respectively.
| Parameter | Trimm 420 | YX BLE |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 18 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 20 MB | 44 MB |
| Age rating | 4+ | 12+ |
| Developer | Gustav Schubert | Hunan Ginkgo Data Technology Co., Ltd. |
In-app purchases
Trimm 420
No in-app purchases
YX BLE
No in-app purchases









