Comparison

CTEK Battery Sense vs BM6

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

Head to head
About

CTEK Battery Sense

Monitor your vehicle battery's health and performance directly from your smartphone. Get instant readings, continuous charge monitoring, and low charge alerts to prevent breakdowns and ensure you're always ready to drive.

Highlights
  • Continuous battery charge monitoring
  • Instant voltage and temperature readings
  • Bluetooth syncing
  • Low charge alerts
  • Zoomable graph data
  • Manual capacity input
Read full description

The CTEK Battery Sense app works with your CTEK CTX Battery Sense Monitor to tell you everything you need to know about your vehicle battery’s status, right there in the palm of your hand. It’s been specially designed to help you monitor your battery’s performance quickly and accurately to keep you safely on the road and prevent breakdowns. • Easy to install and use • Quickly syncs via Bluetooth with your phone • Continuous battery charge monitoring for 12V lead acid batteries • Easy to understand information about your battery’s charge status • Instant readings of your battery’s voltage and temperature • Manual input for battery capacities from 5Ah to 200A • Default 5 day data readout on start up • Zoomable graph data for specific days or periods • Low charge alert The CTEK Battery Sense app is easy to install and easy to use – simply sync the app with your CTEK CTX Battery Sense Monitor via Bluetooth for continuous battery charge monitoring 24/7 and easy to understand status reports. And if your battery’s charge is running down to a critical level, the CTEK Battery Sense app will tell you when it’s time to reach for your CTEK battery charger. For more information about Battery Sense visit www.ctek.com

About

BM6

Monitor your car's battery in real-time via Bluetooth. This app tests starting and charging systems, records engine start/stop times, and displays all data on your mobile device for easy management of your vehicle's battery power.

Highlights
  • Real-time battery voltage monitoring
  • Starting system voltage test
  • Charging system voltage test
  • Records engine start/stop times
  • Bluetooth data display
  • Vehicle battery power management
Features
Read full description

Battery monitor 6 is an application of automobile battery. It can let people know the voltage of automobile battery in real time. It helps users fully understand the battery by testing the starting and charging system voltage. It can accurately record the time of car starting and stopping. All data can be displayed on the mobile phone through Bluetooth. Easy management of vehicle battery power

Screenshots

CTEK Battery Sense4 screens
BM64 screens

Verdict

The call

The clearest difference is rating: BM6 at 3.3 against CTEK Battery Sense's 2.1. BM6 also leads on review sentiment (46% vs 19%) and update cadence (every 5 weeks vs every 3 months). CTEK Battery Sense's advantage is iOS requirement (12.0 vs 15.6). 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

BM6 holds the better App Store score, 3.3 against 2.1. Both are backed by a comparable volume of ratings — 36 and 18 respectively. Written reviews point the same way: 19% of CTEK Battery Sense's written reviews are positive against 46% of BM6's.

UpkeepUpdate frequency

CTEK Battery Sense ships an update every 3 months, BM6 every 5 weeks. The most recent releases landed on November 1, 2026 and November 7, 2026 respectively.

Scorecard4 real differences · 6 level
CTEK Battery Sense versus BM6: the parameters behind the verdict, then further details
ParameterCTEK Battery SenseBM6
PriceFreeFree
Rating2.1 (36 ratings)3.3 (18 ratings) — better
Positive reviews19.3% of reviews45.8% of reviews — better
Number of ratings36 — better18
Update frequencyEvery 3 monthsEvery 5 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPodiPhone, iPod, Apple Watch — better
Requires iOS12.0 — better15.6
Further details — not scored
Size18 MB64 MB
Age rating4+4+
DeveloperCTEK Sweden ABShenzhen Leagend Optoelectronics Co., Ltd.

Customer experience

CTEK Battery Sense

All ratings37 ratings
Positive24.3%
Neutral10.8%
Negative64.9%
Written reviews171 reviews
Positive19.3%
Neutral10.5%
Negative70.2%

BM6

All ratings17 ratings
Positive47.1%
Neutral17.6%
Negative35.3%
Written reviews72 reviews
Positive45.8%
Neutral11.1%
Negative43.1%

Bugs and requests

CTEK Battery Sense

Reported bugs

4 issues
  • App freezes on details page
  • Incorrect temperature/voltage labeling
  • Deleted all connected devices after update
  • Fails to connect after iOS updates

Requested features

5 requests
  • Improved voltage/temperature graph scaling
  • Export data functionality
  • Automatic reconnection when in range
  • Battery type detection (AGM/flooded)
  • Faster updates and real-time monitoring

BM6

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

CTEK Battery Sense

No in-app purchases

None

BM6

No in-app purchases

Questions

Is CTEK Battery Sense free?
CTEK Battery Sense is free to download, with no in-app purchases.
Is BM6 free?
BM6 is free to download, with no in-app purchases.
Which has better reviews, CTEK Battery Sense or BM6?
BM6 is rated higher. CTEK Battery Sense averages 2.1 out of 5 from 36 ratings, while BM6 averages 3.3 from 18 ratings.
Do CTEK Battery Sense or BM6 have ads?
Neither CTEK Battery Sense nor BM6 shows ads.
Which is updated more often, CTEK Battery Sense or BM6?
CTEK Battery Sense ships an update every 3 months, and BM6 every 5 weeks. Most recently, CTEK Battery Sense was updated on November 1, 2026 and BM6 on November 7, 2026.

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