Comparison

123SmartBMS vs DROK Meter

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

DROK Meter

Features
Read full description

The DROK Meter series volt-ampere meter is a new type of coulomb counter that can measure various physical parameters such as voltage, current, power, charge and discharge capacity, watt-hours, time, etc. It can also set parameters to realize multiple protection functions such as over voltage protection, under voltage protection, over current protection, overpower protection, over temperature protection and time limit protection.The meter can automatically identify the direction of the current, and can monitor the battery capacity in real time and display the measured data in use color LCD screen. The DROK Meter series voltage and current meters add voltage and current curve display and export functions on the basis of the original functions. At the same time, the mobile phone APP and host computer can be used to control, and the firmware can also be updated and upgraded in real time.

Screenshots

123SmartBMS4 screens
DROK Meter3 screens

Verdict

The call

The clearest difference is update cadence: DROK Meter at every 4 days against 123SmartBMS's monthly. DROK Meter also leads on iOS requirement (9.0 vs 16.0). 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

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

123SmartBMS ships an update monthly, DROK Meter every 4 days. The most recent releases landed on September 20, 2026 and September 28, 2026 respectively.

Scorecard2 real differences · 8 level
123SmartBMS versus DROK Meter: the parameters behind the verdict, then further details
Parameter123SmartBMSDROK Meter
PriceFreeFree
Rating4.5 (21 ratings) — better—
Positive reviews66.7% of reviews—
Number of ratings21 — better—
Update frequencyMonthlyEvery 4 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPadiPhone, iPod
Requires iOS16.09.0 — better
Further details — not scored
Size190 MB26 MB
Age rating4+4+
DeveloperAlbertronic B.V.Hangzhou Junce Instruments Co., Ltd.

In-app purchases

None

123SmartBMS

No in-app purchases

None

DROK Meter

No in-app purchases

Questions

Is 123SmartBMS free?
123SmartBMS is free to download, with no in-app purchases.
Is DROK Meter free?
DROK Meter is free to download, with no in-app purchases.
Do 123SmartBMS or DROK Meter have ads?
Neither 123SmartBMS nor DROK Meter shows ads.
Which is updated more often, 123SmartBMS or DROK Meter?
123SmartBMS ships an update monthly, and DROK Meter every 4 days. Most recently, 123SmartBMS was updated on September 20, 2026 and DROK Meter on September 28, 2026.

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