123SmartBMS vs EV Battery
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
123SmartBMS
This app monitors and manages lithium battery packs, ensuring optimal condition and extended lifespan. It tracks cell voltages, temperatures, and currents, while balancing cells during charging. Connect via Bluetooth to view real-time battery status and control charging/discharging.
- Monitors cell voltages and temperatures
- Tracks in- and outgoing currents
- Balances cells during charging
- Bluetooth connectivity for real-time data
- Controls charge/discharge signals
- Extends battery pack lifespan
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123\SmartBMS is an easy to use yet advanced, modular BMS to keep your lithium batteries in perfect condition, increasing the lifespan of the battery pack. The system measures important data like cell voltages, cell temperatures and in- and outgoing currents. It also balances all cells to the same voltage during charging. The BMS supervises the whole battery pack and has two signal relays to indicate “allow to charge” and “allow to discharge”. These signal relays can control chargers and inverters with “enable”/”disable” signals or by connecting an energy efficient power relay to the signal relay. An example is the 123\SmartRelay. Easily connect your phone to the BMS using Bluetooth to see relevant information including state of charge, energy consumed, energy stored, in- and outgoing current, cell voltages and temperatures. With 123\SmartBMS, your battery pack is in safe hands.
EV Battery
Estimate your electric vehicle's effective battery size by inputting the energy consumed during charging. This utility helps understand battery capacity based on real-world usage.
- Estimate EV battery size
- Calculate based on charging energy
- Utility for EV owners
- Simple interface
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This is a handy app to estimate your effective EV battery size based on how much energy it takes during charging.
Screenshots
Verdict
The clearest difference is review sentiment: 123SmartBMS at 67% against EV Battery's 0%. 123SmartBMS also leads on ratings volume (21 vs 1). EV Battery's advantage is rating (5.0 vs 4.5) and iOS requirement (9.0 vs 16.0). On price, update cadence, ads and in-app purchases 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.
EV Battery holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: 123SmartBMS has 21 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 67% of 123SmartBMS's written reviews are positive against 0% of EV Battery's, so the app with the better star average is not the one people write more warmly about.
Both ship on a similar rhythm, roughly monthly. The most recent releases landed on October 7, 2026 and October 16, 2026 respectively.
| Parameter | 123SmartBMS | EV Battery |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (21 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 66.7% of reviews — better | 0.0% of reviews |
| Number of ratings | 21 — better | 1 |
| Update frequency | Monthly | Monthly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 9.0 — better |
| Further details — not scored | ||
| Size | 190 MB | 44 MB |
| Age rating | 4+ | 4+ |
| Developer | Albertronic B.V. | zCage.com Apps LLC |
Customer experience
123SmartBMS
EV Battery
In-app purchases
123SmartBMS
No in-app purchases
EV Battery
No in-app purchases
Questions
Is 123SmartBMS free?
Is EV Battery free?
Which has better reviews, 123SmartBMS or EV Battery?
Do 123SmartBMS or EV Battery have ads?
Which is updated more often, 123SmartBMS or EV Battery?
Other comparisons
