Comparison

123SmartBMS vs EPEVER Pair

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

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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.

About

EPEVER Pair

This app allows users to monitor and control solar power systems. It provides real-time data and system status for solar charge controllers and off-grid inverters. Manage your solar energy solutions efficiently with this tool.

Highlights
  • Real-time system monitoring
  • Control solar charge controllers
  • Manage off-grid inverters
  • View system status
  • Solar application system management
Features
Read full description

Beijing Epsolar Technology Co., Ltd. was established in March 2007 with more than 30 million RMB registered capital. We are a new and high-tech enterprise which was specialized in power products researching, manufacturing, and marketing. We provide products including solar charge controllers, off-grid inverter, LED driver and special power units etc., as well as design and supply relevant solar application systems. The company has passed the ISO9001: 2008, and products have passed CGC-SOLAR, CE, ROSH, FCC, and ETL certificate, as well as other domestic and international authoritative certification and a number of patents. The products have been extensively applied and highly appraised in a number of major projects at home and abroad. And sell in more than 120 foreign countries and regions. In July 2014, we established Shenzhen branch as our production base. In August 2014, we were listed in NATIONAL EQUITIES EXCHANGE AND QUOTATIONS and launched into capital market successfully.

Screenshots

123SmartBMS4 screens
EPEVER Pair4 screens

Verdict

The call

The clearest difference is review sentiment: 123SmartBMS at 67% against EPEVER Pair's 15%. 123SmartBMS also leads on rating (4.5 vs 2.1). EPEVER Pair's advantage is iOS requirement (9.0 vs 16.0). On price, ratings volume, update cadence and ads 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

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

123SmartBMS holds the better App Store score, 4.5 against 2.1. Both are backed by a comparable volume of ratings — 21 and 15 respectively. Written reviews point the same way: 67% of 123SmartBMS's written reviews are positive against 15% of EPEVER Pair's.

UpkeepUpdate frequency

123SmartBMS ships an update monthly, EPEVER Pair every 3 weeks. The most recent releases landed on October 7, 2026 and October 4, 2026 respectively.

Scorecard3 real differences · 7 level
123SmartBMS versus EPEVER Pair: the parameters behind the verdict, then further details
Parameter123SmartBMSEPEVER Pair
PriceFreeFree
Rating4.5 (21 ratings) — better2.1 (15 ratings)
Positive reviews66.7% of reviews — better14.9% of reviews
Number of ratings21 — better15
Update frequencyMonthlyEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPadiPhone, iPod
Requires iOS16.09.0 — better
Further details — not scored
Size190 MB92 MB
Age rating4+4+
DeveloperAlbertronic B.V.BEIJING EPSOLAR TECHNOLOGY CO., LTD.

Customer experience

123SmartBMS

All ratings21 ratings
Positive85.7%
Neutral4.8%
Negative9.5%
Written reviews3 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

EPEVER Pair

All ratings15 ratings
Positive20.0%
Neutral6.7%
Negative73.3%
Written reviews101 reviews
Positive14.9%
Neutral8.9%
Negative76.2%

In-app purchases

None

123SmartBMS

No in-app purchases

None

EPEVER Pair

No in-app purchases

Questions

Is 123SmartBMS free?
123SmartBMS is free to download, with no in-app purchases.
Is EPEVER Pair free?
EPEVER Pair is free to download, with no in-app purchases.
Which has better reviews, 123SmartBMS or EPEVER Pair?
123SmartBMS is rated higher. 123SmartBMS averages 4.5 out of 5 from 21 ratings, while EPEVER Pair averages 2.1 from 15 ratings.
Do 123SmartBMS or EPEVER Pair have ads?
Neither 123SmartBMS nor EPEVER Pair shows ads.
Which is updated more often, 123SmartBMS or EPEVER Pair?
123SmartBMS ships an update monthly, and EPEVER Pair every 3 weeks. Most recently, 123SmartBMS was updated on October 7, 2026 and EPEVER Pair on October 4, 2026.

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