Comparison

123SmartBMS vs TEMGO

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

TEMGO

Monitor your battery's real-time performance, including voltage, current, and internal resistance. Track historical data, compare individual cell performance, and receive alerts for critical temperature and voltage conditions. This system helps optimize battery health and lifespan.

Highlights
  • Real-time voltage, current, and power display
  • Historical data charting
  • Individual cell comparison and balancing
  • Temperature and voltage alarms
  • Fault reporting function
Features
Read full description

The Temgot Battery management system is connected to the active equalizer via Bluetooth to monitor the battery status, collect, store and process information during battery operation in real, time Easy for after-sales management。 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.Record battery data using a chart timeline. Easy to use 3. Each data comparison 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. 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; 6.New fault reporting function Use a Battery Monitoring System To get the most out of a lithium battery, it’s essential to use a battery monitoring system. This will help track your battery’s charging and discharging cycles and overall health. A battery monitoring system will ensure that your battery is always in top condition and prolong its lifespan. I hope Temgot can help you learn more about the convenience of using the battery Best Regards !

Screenshots

123SmartBMS4 screens
TEMGO4 screens

Verdict

The call

The clearest difference is rating: 123SmartBMS at 4.5 against TEMGO's 4.0. 123SmartBMS also leads on ratings volume (21 vs 3). TEMGO's advantage is review sentiment (100% vs 67%) and iOS requirement (13.0 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

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 4.0. That said, the two scores are not equally well evidenced: 123SmartBMS has 21 ratings behind it against 3, so its average is the more settled of the two. Written reviews complicate that: 67% of 123SmartBMS's written reviews are positive against 100% of TEMGO's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

123SmartBMS ships an update monthly, TEMGO every 3 weeks. The most recent releases landed on September 20, 2026 and August 18, 2026 respectively.

Scorecard4 real differences · 6 level
123SmartBMS versus TEMGO: the parameters behind the verdict, then further details
Parameter123SmartBMSTEMGO
PriceFreeFree
Rating4.5 (21 ratings) — better4.0 (3 ratings)
Positive reviews66.7% of reviews100.0% of reviews — better
Number of ratings21 — better3
Update frequencyMonthlyEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPadiPhone, iPod
Requires iOS16.013.0 — better
Further details — not scored
Size190 MB31 MB
Age rating4+17+
DeveloperAlbertronic B.V.Shenzhen Guri New Energy

Customer experience

123SmartBMS

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

TEMGO

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

123SmartBMS

No in-app purchases

None

TEMGO

No in-app purchases

Questions

Is 123SmartBMS free?
123SmartBMS is free to download, with no in-app purchases.
Is TEMGO free?
TEMGO is free to download, with no in-app purchases.
Which has better reviews, 123SmartBMS or TEMGO?
123SmartBMS is rated higher. 123SmartBMS averages 4.5 out of 5 from 21 ratings, while TEMGO averages 4.0 from 3 ratings.
Do 123SmartBMS or TEMGO have ads?
Neither 123SmartBMS nor TEMGO shows ads.
Which is updated more often, 123SmartBMS or TEMGO?
123SmartBMS ships an update monthly, and TEMGO every 3 weeks. Most recently, 123SmartBMS was updated on September 20, 2026 and TEMGO on August 18, 2026.

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