Ezoutboard vs Queen Tech
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Ezoutboard
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This App is used to indicate main parameters on iphone, such as riding speed, current draw and battery voltage. Besides, paramters of controller can be programmed via this App. 这款应用可以在iPhone上显示速度，电流消耗和电池电压等主要参数。 此外，控制器参数也可通过这款应用进行编程。
Queen Tech
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APP集成了设备监控、电站监控、蓝牙配网、本地监控调试等一系列非常实用得功能，提供更便捷的光伏监控云。方便用户随时查看设备的发电情况和运行状况。
Screenshots
Verdict
The clearest difference is update cadence: Ezoutboard at every 3 weeks against Queen Tech's every 10 months. Queen Tech's advantage is iOS requirement (12.0 vs 15.0). 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.
Ezoutboard ships an update every 3 weeks, Queen Tech every 10 months. The most recent releases landed on September 14, 2026 and May 31, 2026 respectively.
| Parameter | Ezoutboard | Queen Tech |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 weeks — better | Every 10 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 6 MB | 212 MB |
| Age rating | 4+ | 4+ |
| Developer | 雨晨 恽 | Shanghai Siseli New Energy Cooperative Enterprise |
In-app purchases
Ezoutboard
No in-app purchases
Queen Tech
No in-app purchases
