Comparison

Roamer BMS vs Excel Mobility

Price, ratings, monetisation and update history for both apps, side by side β€” with what reviewers say about each.

Head to head
About

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.

Highlights
  • Wireless Bluetooth connection
  • Real-time battery monitoring
  • State of charge display
  • Voltage and current readings
  • Internal cell voltage display
  • BMS parameter adjustment (admin)
Features
Read 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

About

Excel Mobility

Features
Read full description

Excel Mobility provides mobile and nursing aids for the elderly and the disabled to provide intelligent battery management systems for wheelchairs, scooters, walkers, electric wheelchairs and boosters, which can be connected via Bluetooth to monitor battery status and collect data in real time Store and process information during battery operation, and exchange information with external devices, so that the following content can be seen intuitively during use: 1. Display real-time voltage, current, power, internal resistance and other parameter values, and display them in the form of instrument panels and numbers; 2. Display the real-time voltage and alarm status of all single batteries. If the reported parameters trigger the alarm value or protection value, an alarm will be prompted; 3. The comparison of each data of the battery cell, the voltage difference. Maximum voltage cell Minimum voltage cell. And the display of cell balance 4. Cell temperature warning. Real-time alarm for over temperature, short circuit, over voltage, under voltage 5. Record the warnings that occur at each moment. Hope Excel Mobility can help you learn more about the convenience of using batteries Best Regards !

Screenshots

Roamer BMS4 screens
Excel Mobility4 screens

Verdict

The call

The clearest difference is update cadence: Roamer BMS at every 2 weeks against Excel Mobility's every 3 months. On price, ads, in-app purchases and device support there is nothing between them.

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

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Roamer BMS ships an update every 2 weeks, Excel Mobility every 3 months. The most recent releases landed on June 4, 2026 and September 15, 2026 respectively.

Scorecard1 real difference Β· 7 level
Roamer BMS versus Excel Mobility: the parameters behind the verdict, then further details
ParameterRoamer BMSExcel Mobility
PriceFreeFree
Positive reviews16.7% of reviewsβ€”
Update frequencyEvery 2 weeks β€” betterEvery 3 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeβ€”
DevicesiPhone, iPodiPhone, iPod
Requires iOS11.011.0
Further details β€” not scored
Size5 MB80 MB
Age rating4+4+
Developerζ­₯ζ³½ ηŽ‹ζ±Ÿθ₯ΏθΎΎδΌ™η½‘η»œη§‘ζŠ€ζœ‰ι™ε…¬εΈ

In-app purchases

None

Roamer BMS

No in-app purchases

None

Excel Mobility

No in-app purchases

Questions

Is Roamer BMS free?
Roamer BMS is free to download, with no in-app purchases.
Is Excel Mobility free?
Excel Mobility is free to download, with no in-app purchases.
Do Roamer BMS or Excel Mobility have ads?
Neither Roamer BMS nor Excel Mobility shows ads.
Which is updated more often, Roamer BMS or Excel Mobility?
Roamer BMS ships an update every 2 weeks, and Excel Mobility every 3 months. Most recently, Roamer BMS was updated on June 4, 2026 and Excel Mobility on September 15, 2026.

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