E Tool vs 玉成蓝牙工具
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
E Tool
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蓝牙生产工具，简易的界面，简易的操作。 助您快速生产测试
玉成蓝牙工具
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Yucheng Bluetooth Tool App is an auxiliary tool App developed by Shenzhen Yucheng Innovation Technology Co., Ltd. This App is only provided for production personnel. The App provides firmware upgrade, UI upgrade, modification of Bluetooth name, temperature calibration and other production functions.
Screenshots
Verdict
The clearest difference is update cadence: E Tool at monthly against 玉成蓝牙工具's every 4 months. E Tool also leads on iOS requirement (9.0 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.
E Tool ships an update monthly, 玉成蓝牙工具 every 4 months. The most recent releases landed on October 26, 2026 and October 29, 2026 respectively.
| Parameter | E Tool | 玉成蓝牙工具 |
|---|---|---|
| Price | Free | Free |
| Update frequency | Monthly — better | Every 4 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 9.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 14 MB | 30 MB |
| Age rating | 4+ | 4+ |
| Developer | 建周 李 | Shenzhen Yucheng Innovation Technology Co., Ltd. |
In-app purchases
E Tool
No in-app purchases
玉成蓝牙工具
No in-app purchases
