SUNBEAMsystem vs EJBMS Plus
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SUNBEAMsystem
Monitor your lithium battery's charge status, voltage, current, and temperature. Retrieve cycle count and capacity information for a comprehensive overview. The app automatically reconnects via Bluetooth.
- Real-time charge status
- Voltage and current monitoring
- Battery temperature display
- Cycle count retrieval
- Capacity loss information
- Automatic Bluetooth reconnection
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Please, get attention: This version isn't supported anymore, so please, migrate onto our Multi Connect application: https://apps.apple.com/us/app/sunbeamsystem-multi-connect/id1497362864. However, you could still use this version, if you don't want to get more functionality and supported hardware. SUNBEAMsystem Smart L I T H I U M is fully Plug & Play which means you can replace your old lead acid with out any hassles or need in extra equipment. The app gives you full control and overview of your charge status and other important parameters. App functionality: Main Screen is configurable and will show The state of Charge, Voltage, Charge and Discharge current, The used capacity in Ah, Projected time until full and empty, finally also the temperature inside the battery. You can retrieve cycle count as well as the calculated capacity. This is improves the second hand value as well as giving you immediate information regarding any capacity loss due to for example low temperature. Temperature is configurable (C/F) The Connection to the battery uses low consumption Bluetooth and after connection the app will try to stay connected to the battery in the background as long as you do not disconnect (by hitting the back button). This means you might move out of contact (leave your vessel) and then return and the app will reconnect automatically. The Bluetooth connection strength is shown in the upper right corner.
EJBMS Plus
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EJBMS Plus is an app that provides more than just a display of your system’s charge level. They also give you historical and real-time data on voltage, power usage, temperature, and other factors that can help you improve your battery usage and charging. EJBMS Plus is designed for a smart BMS with active cell balancing, which ensures good battery performance, extends the battery life, and maximizes the battery’s potential.
Screenshots
Verdict
The clearest difference is update cadence: SUNBEAMsystem at every 2 months against EJBMS Plus's every 7 months. 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.
SUNBEAMsystem ships an update every 2 months, EJBMS Plus every 7 months. The most recent releases landed on June 1, 2026 and September 17, 2026 respectively.
| Parameter | SUNBEAMsystem | EJBMS Plus |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (2 ratings) — better | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 2 months — better | Every 7 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 11.0 — better | 12.0 |
| Further details — not scored | ||
| Size | 11 MB | 41 MB |
| Age rating | 4+ | 4+ |
| Developer | SUNBEAMsystem AB | E&Jtechnology |
In-app purchases
SUNBEAMsystem
No in-app purchases
EJBMS Plus
No in-app purchases









