EVSEMaster vs B
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
EVSEMaster
Manage your smart charging piles with this app. Monitor status, control charging, view records, and perform wireless upgrades via Bluetooth or Wi-Fi.
- Monitor charging pile status
- Control charging start/stop
- Configure charging modes
- View and statistics charging records
- Wireless firmware upgrades
- Bluetooth and Wi-Fi connectivity
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EVSE Master APP is an app for smart charging piles. The APP is connected to the charging pile through Bluetooth or WIFI for data interaction. Its main functions are to monitor the status of charging piles, control the start and stop of charging piles for charging, charge mode and other functions, check and statistics charging records, firmware wireless upgrade and other functions. This APP communicates data through Bluetooth or WIFI LAN of mobile phone. The communication mode is connected through Bluetooth channel for the first time. After setting the parameters of WIFI communication, it communicates with WIFI channel. When both kinds of communication are effective, APP automatically switches to WIFI first. EVSE Master APP是一款智能充电桩用的手机APP。 该APP通过手机蓝牙或者WIFI与充电桩相连,进行数据交互。 其主要功能是监控充电桩状态、控制充电桩启停进行充电、进行充电方式等功能设置、查看及统计充电记录、固件无线升级等功能。 该APP是通过手机蓝牙或者WIFI局域网进行数据通信的,通信方式以首次连接通过蓝牙通道,之后设置WIFI通信参数后,进行WIFI通道通信,当两种通信都有效时,APP自动切换为WIFI优先。
B
Control your compatible Tesla vehicle using your iPhone or Apple Watch via Bluetooth. This app offers local control without requiring an account or network connection, with convenient features like Control Center access and Siri shortcuts.
- Pure local Bluetooth control
- No account or network required
- Apple Watch standalone use
- Control Center support
- iPhone Home Screen Widget
- Siri shortcut commands
- Face ID / Touch ID support
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【B-KEY features】 Pure local Bluetooth application, no account or network required.Free to use on iPhone! ● Pure local Bluetooth application, no account or network required to control the car ● Supports pairing of multiple Bluetooth keys ● Supports Control Center ● Supports Apple Watch standalone use (subscription required) ● Supports Apple Watch Complications ● Supports iPhone Home Screen Widget ● Supports iPhone Home Screen quick actions ● Supports Siri shortcut command to control the vehicle ● Supports Face ID / Touch ID ● Supports dark mode / light mode Supported models: Model 3, Model Y, and Model S, Model X from 2021 onwards (old models of Model S, Model X are not supported) 【Watch Subscription】 1. Subscription Products: Watch Month Plan,Watch 6 Months Plan,Watch Annual Plan,Permanent Plan. 2. Subscription Price: Watch Month Plan, $0.99/Month. Watch 6 Months Plan, $3.99/6 Months. Watch Annual Plan $6.99/year.7 days trial(The price is subject to actual payment).Permanent Plan $7.99. 3. Payment: After the user confirms the purchase and makes the payment, it will be credited to the iTunes account. 4. Apple iTunes account will be deducted within 24 hours before expiration. After the deduction is successful, the subscription period will be extended by one subscription period. 5. If you need to cancel your subscription, please open the "Settings" of your iPhone > click your Apple ID > click "Subscriptions", After selecting the corresponding subscription item, click Cancel Subscription. 6. If the subscription is not closed at least 24 hours before the end of the subscription period, this subscription will be automatically renewed. 7. Terms of Service (including subscription service rules): https://app4tsl.com/index_protocol_s.html 8. Privacy Policy: https://app4tsl.com/index.html#privacy 【Q&A】 - 1. How to use Apple Watch alone? Yes. Go to iPhone > Settings > Subscription Management. After the subscription is successful, connect the Apple Watch to the iPhone and restart B-KEY on the Apple Watch. After the synchronization is successful, the Apple Watch will be available for use. - 2. Are the keys on Apple Watch and iPhone in version 2.0 shared or independent? It is used independently. You need to add and manage keys separately on Apple Watch, which will not be synchronized with your iPhone. The watch is used independently. - 3.Does B-KEY require a Tesla account? B-KEY is a pure Bluetooth app, so there is no need for a Tesla account. - 4. Does B-KEY support sensorless unlocking and starting driving? Support. (If you restart your phone, you need to reopen the app and connect to the car to take effect). Due to the background mechanism of Apple Watch, B-KEY needs to be in the foreground before the vehicle can sense the key and thus unlock/start without feeling. - 5. How to remove Bluetooth keys that have already been added? Open 'B-KEY', enter the 'My Keys' list, slide left on the key card that needs to be removed, and click the delete button. Then, in the "Key Management" interface of the car, delete the corresponding Bluetooth key. 【Technical support】 - WeChat:B-KEY_support - Email:bkeyfeedback@gmail.com You can also leave feedback in the AppStore. 【Disclaimer】 This app is not endorsed by Tesla Inc. Use at your own risk. No guarantee of proper function is given. Only you are responsible for any changes to your car caused by using this app.
Screenshots
Verdict
The clearest difference is review sentiment: B at 67% against EVSEMaster's 23%. B also leads on ratings volume (57 vs 4). EVSEMaster's advantage is rating (5.0 vs 4.3) and in-app purchases (none vs 7). On price, update cadence, ads 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. B sells 7 in-app purchases, starting at $0.99 per month. EVSEMaster asks for nothing beyond the download.
EVSEMaster holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: B has 57 ratings behind it against 4, so its average is the more settled of the two. Written reviews complicate that: 23% of EVSEMaster's written reviews are positive against 67% of B's, so the app with the better star average is not the one people write more warmly about.
EVSEMaster ships an update every 5 weeks, B monthly. The most recent releases landed on October 15, 2026 and October 18, 2026 respectively.
| Parameter | EVSEMaster | B |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (4 ratings) — better | 4.3 (57 ratings) |
| Positive reviews | 22.6% of reviews | 66.7% of reviews — better |
| Number of ratings | 4 | 57 — better |
| Update frequency | Every 5 weeks | Monthly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, Apple Watch |
| Requires iOS | 13 — better | 18.0 |
| Further details — not scored | ||
| Size | 12 MB | 30 MB |
| Age rating | 4+ | 17+ |
| Developer | Nanjing Shenqi Electronic Technology Co., Ltd. | 钰钢 王 |
Customer experience
EVSEMaster
B
In-app purchases
EVSEMaster
No in-app purchases
B
- Watch Month Plan$0.991 Month
- Watch 6 Months Plan7 Days trial$3.996 Months
- Watch Annual Plan7 Days trial$6.991 Year
- Buy Developer a Drink$0.99
- Buy Developer a Coffee$1.99
- Buy Developer a Beer$2.99
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- Watch Permanent Plan$7.99









