Roamer BMS vs TN
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Roamer BMS
Monitor your LiFePO4 batteries wirelessly from your iPhone. View real-time state of charge, voltage, current, and internal cell voltages. Compatible only with second-generation Roamer Batteries Smart BMS.
- Wireless Bluetooth connection
- Real-time battery monitoring
- State of charge display
- Voltage and current readings
- Internal cell voltage display
- BMS parameter adjustment (admin)
Read full descriptionHide full description
The Roamer BMS app allows you to monitor LiFePO4 batteries equipped with the new Roamer Batteries Smart BMS. Please note, this app is only suitable for second-generation Roamer Batteries. Other brands or first-generation models are not compatible. FEATURES No need for a separate battery monitor Wirelessly connect to your battery from your iPhone Monitor your battery state of charge, voltage and current in real time Displays internal battery status including cell voltages Change BMS parameters using admin password (request from Roamer) PLEASE NOTE The iPhone requires Bluetooth 5.0 with BLE functions You must accept all security permissions when requested or the app will not work Operating distance should be less than 10m The app will only connect with one battery at a time If you want to connect with another iPhone, please shutdown the app on the first iPhone The password for the Details page is in the user guide which can be downloaded from www.roamerbatteries.com/support/quick-start The password for the parameters page can be requested from Roamer. This is an admin only page, changing parameters without permission from Roamer can invalidate your battery warranty. Β Offered by Roamer Batteries Ltd
TN
Read full descriptionHide full description
TN-BMS Lithium Battery APP Description This is the exclusive TN-BMS Lithium Battery Monitor APP 1) Now you can monitor your battery on your phone directly from the BMS. 2) The "Device" tab can direct connect or scan the mac address to connect the battery device. 3) Displays the battery information on the βDashboardβ tab including : State of Charge, Voltage, Capacity, Status, Protection, Current, Power, Cycles, Temperature, Charge/Discharge Switch and so on. 4) The "Parameter" tab include some device info, Such as Bluetooth Name, Norminal capacity, Cycle capacity, Cell num, Version and so on. 5) This APP functions through Bluetooth 5.0, Maximum distance of communication on a typical phone is 10 meters (30 feet). 6) Each battery will only allow one Bluetooth connection at a time.
Screenshots
Verdict
Roamer BMS and TN are too close to call on the numbers: across 5 compared parameters β price, ads, in-app purchases and device support among them β neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Roamer BMS | TN |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 16.7% of reviews | β |
| Update frequency | Every 2 weeks | β |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | β |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 11.0 β better | 12.0 |
| Further details β not scored | ||
| Size | 5 MB | 18 MB |
| Age rating | 4+ | 4+ |
| Developer | ζ₯ζ³½ η | BMS Technologies LTD |
In-app purchases
Roamer BMS
No in-app purchases
TN
No in-app purchases







