Roamer BMS vs i
Price, ratings, monetisation and update history for both apps, side by side โ 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)
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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. ย Offered by Roamer Batteries Ltd
i
Monitor your i-tecc+ LiFePO4 batteries with detailed insights. Track state of charge, capacity, power usage, temperature, and charge cycles. Essential for managing battery health and performance.
- Monitor state of charge
- Track battery capacity
- View power consumption
- Check battery temperature
- Record charge cycles
- LiFePO4 battery information
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i-tecc+ BMS is the perfect tool to get important information about your i-tecc+ LiFePO4 batteries, such as current state of charge, battery capacity, power consumption, temperature, charge cycles and much more.
Screenshots
Verdict
The clearest difference is update cadence: Roamer BMS at every 2 weeks against i's every 19 months. Roamer BMS also leads on review sentiment (17% vs 0%). On price, ads, in-app purchases and monetization model there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Roamer BMS ships an update every 2 weeks, i every 19 months. The most recent releases landed on October 15, 2026 and October 8, 2026 respectively.
| Parameter | Roamer BMS | i |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 16.7% of reviews โ better | 0.0% of reviews |
| Update frequency | Every 2 weeks โ better | Every 19 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod โ better |
| Requires iOS | 11.0 โ better | 12.0 |
| Further details โ not scored | ||
| Size | 5 MB | 34 MB |
| Age rating | 4+ | 4+ |
| Developer | ๆญฅๆณฝ ็ | i-tecc batteries GmbH |
Customer experience
Roamer BMS
i
In-app purchases
Roamer BMS
No in-app purchases
i
No in-app purchases
