51数字钥匙 vs 零豆Watch
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
51数字钥匙
This utility app uses Bluetooth to connect to your vehicle, allowing you to unlock, lock, and open the trunk directly from your phone. It eliminates the need to carry physical keys for these functions.
- Bluetooth vehicle connectivity
- Remote car unlocking
- Remote car locking
- Remote trunk opening
- Eliminates physical keys
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51数字钥匙APP支持蓝牙功能，使用蓝牙连接，彻底解决客户带钥匙的繁琐事宜。 可以在蓝牙连接的情况下，使用手机进行车辆解锁、关锁、开启尾箱等功能。
零豆Watch
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1．通过蓝牙与智能手表建立通信。 2．可以管理智能手表上的闹钟。 3．可以读取智能手表上的运动统计数据，并将这些数据 以可视化的方式展示给用户。 4．支持用户注册账号、登录账号、修改密码、登出账 号、注销账号。
Screenshots
Verdict
The clearest difference is update cadence: 51数字钥匙 at every 3 weeks against 零豆Watch's every 6 weeks. 零豆Watch's advantage is iOS requirement (11.0 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.
51数字钥匙 ships an update every 3 weeks, 零豆Watch every 6 weeks. The most recent releases landed on September 24, 2026 and September 10, 2026 respectively.
| Parameter | 51数字钥匙 | 零豆Watch |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 3 weeks — better | Every 6 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 59 MB | 34 MB |
| Age rating | 4+ | 17+ |
| Developer | 深圳市卓联启航科技有限公司 | Shenzhen Lingdou Technology Co., Ltd. |
In-app purchases
51数字钥匙
No in-app purchases
零豆Watch
No in-app purchases
