Comparison

KH vs EnerKey

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

Head to head
About

KH

This utility measures electrical parameters like voltage, current, and power. It offers real-time monitoring of battery capacity and includes advanced protection functions. The app also supports data export and remote control via a mobile app or host computer.

Highlights
  • Measures voltage, current, power, and capacity
  • Real-time battery monitoring
  • Over-voltage, under-voltage, and over-current protection
  • Voltage and current curve display
  • Data export function
  • Mobile app and host computer control
  • Real-time firmware updates
Features
Read full description

The VAG 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 VAG 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.

About

EnerKey

Monitor and control your lithium battery system in real-time. View current status, historical data, and adjust protective parameters to ensure safe operation. Receive instant alerts for any abnormal conditions.

Highlights
  • Real-time battery monitoring
  • Historical data inquiry
  • Parameter setting
  • Alarm notifications
  • Voltage, current, and temperature display
Features
Read full description

Enerkey lithium battery management system (BMS) provides a range of convenient management and control functions that allow users to perform real-time monitoring, data querying, and parameter setting of their lithium battery via the app. Real-time monitoring: Users can view real-time data such as voltage, current, and temperature of the lithium battery BMS through the app, allowing them to promptly understand the battery's operational status. Historical data inquiry: Users can check the historical operation data of the lithium battery BMS, including battery capacity, charge times, cycle times, and temperature data, helping them better understand the usage of the battery and perform timely maintenance. Parameter setting: Users can set various parameters of the lithium battery BMS through the app, including overcharge protection, over-discharge protection, temperature protection, etc., to ensure the safe operation of the battery. Alarm notification: Users can receive real-time alarm notifications through the app when the lithium battery BMS encounters abnormal conditions, enabling them to handle the issue promptly and prevent accidents. We are committed to providing users with the best experience possible. Download and use our app today!

Screenshots

KH4 screens
EnerKey3 screens

Verdict

The call

The clearest difference is review sentiment: EnerKey at 75% against KH's 0%. KH's advantage is update cadence (every 5 days vs every 2 months) and iOS requirement (9.0 vs 12.0). On price, ads, in-app purchases and monetization model 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

KH ships an update every 5 days, EnerKey every 2 months. Both last shipped on November 3, 2026.

Scorecard3 real differences · 7 level
KH versus EnerKey: the parameters behind the verdict, then further details
ParameterKHEnerKey
PriceFreeFree
Rating—3.5 (4 ratings) — better
Positive reviews0.0% of reviews75.0% of reviews — better
Number of ratings—4 — better
Update frequencyEvery 5 days — betterEvery 2 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS9.0 — better12.0
Further details — not scored
Size32 MB31 MB
Age rating4+4+
DeveloperHangzhou Junce Instruments Co., Ltd.Shenzhen Jinwei Power Source Technology Co., Ltd

Customer experience

KH

Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

EnerKey

All ratings3 ratings
Positive33.3%
Neutral33.3%
Negative33.3%
Written reviews4 reviews
Positive75.0%
Neutral25.0%
Negative0.0%

In-app purchases

None

KH

No in-app purchases

None

EnerKey

No in-app purchases

Questions

Is KH free?
KH is free to download, with no in-app purchases.
Is EnerKey free?
EnerKey is free to download, with no in-app purchases.
Do KH or EnerKey have ads?
Neither KH nor EnerKey shows ads.
Which is updated more often, KH or EnerKey?
KH ships an update every 5 days, and EnerKey every 2 months. Most recently, KH was updated on November 3, 2026 and EnerKey on November 3, 2026.

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