Comparison

KL Serials vs Balance BMS

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

Head to head
About

KL Serials

This utility app measures various electrical parameters like voltage, current, and power. It also offers multiple protection functions, including over-voltage, over-current, and over-temperature alerts, while monitoring battery capacity in real-time.

Highlights
  • Measures voltage, current, power, and capacity
  • Monitors watt-hours and time
  • Over-voltage protection
  • Over-current protection
  • Over-temperature protection
  • Real-time battery capacity monitoring
  • Automatic current direction identification
Features
Read full description

The KL-F series volt-ampere meter is a new type of coulomb meter that can measure various physical parameters such as voltage, current, power, charge and discharge capacity, watt-hours, and time. At the same time, it can also set parameters to achieve over-voltage protection, under-voltage protection, Multiple protection functions such as over current protection, over power protection, and over temperature protection. The meter can automatically identify the direction of the current, and can monitor the battery capacity in real time.

About

Balance BMS

This app allows users to connect to and manage lithium batteries via Bluetooth. It provides detailed information about battery status, helps identify and manage individual battery strings, and allows for setting and reading safety parameters. Users can also monitor and be alerted to battery faults.

Highlights
  • Bluetooth battery connection
  • Battery status query
  • Identify abnormal batteries
  • Set battery protection parameters
  • Monitor battery fault alarms
Features
Read full description

1. The uniqueness of the Bluetooth name ensures that users can accurately connect and manage the corresponding lithium battery; 2. Information query management can be performed on the battery, the user can query the relevant status of each string of batteries, and replace or maintain the abnormal battery; 3. Safety setting and reading battery protection parameters, user setting parameters, you need to enter a password to modify the parameters; 4. Monitor battery fault alarms and display the current faults,and the number of faults in the battery;

Screenshots

KL Serials2 screens
Balance BMS4 screens

Verdict

The call

The clearest difference is rating: KL Serials at 4.5 against Balance BMS's 3.8. KL Serials also leads on iOS requirement (9.0 vs 12.0). Balance BMS's advantage is update cadence (every 6 weeks vs every 3 months). On price, ratings volume, 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

KL Serials holds the better App Store score, 4.5 against 3.8. Both are backed by a comparable volume of ratings — 2 and 5 respectively.

UpkeepUpdate frequency

KL Serials ships an update every 3 months, Balance BMS every 6 weeks. The most recent releases landed on October 8, 2026 and October 4, 2026 respectively.

Scorecard3 real differences · 7 level
KL Serials versus Balance BMS: the parameters behind the verdict, then further details
ParameterKL SerialsBalance BMS
PriceFreeFree
Rating4.5 (2 ratings) — better3.8 (5 ratings)
Positive reviews—30.8% of reviews
Number of ratings25 — better
Update frequencyEvery 3 monthsEvery 6 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS9.0 — better12.0
Further details — not scored
Size29 MB56 MB
Age rating4+17+
DeveloperHangzhou Junce Instruments Co., Ltd.所兵 邱

Customer experience

KL Serials

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Balance BMS

All ratings5 ratings
Positive80.0%
Neutral0.0%
Negative20.0%
Written reviews13 reviews
Positive30.8%
Neutral15.4%
Negative53.8%

In-app purchases

None

KL Serials

No in-app purchases

None

Balance BMS

No in-app purchases

Questions

Is KL Serials free?
KL Serials is free to download, with no in-app purchases.
Is Balance BMS free?
Balance BMS is free to download, with no in-app purchases.
Which has better reviews, KL Serials or Balance BMS?
KL Serials is rated higher. KL Serials averages 4.5 out of 5 from 2 ratings, while Balance BMS averages 3.8 from 5 ratings.
Do KL Serials or Balance BMS have ads?
Neither KL Serials nor Balance BMS shows ads.
Which is updated more often, KL Serials or Balance BMS?
KL Serials ships an update every 3 months, and Balance BMS every 6 weeks. Most recently, KL Serials was updated on October 8, 2026 and Balance BMS on October 4, 2026.

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