Comparison

BLECarVoltage vs BATT SYNC

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

Head to head
About

BLECarVoltage

Features
Read full description

App. is a Battery Monitor for iPhone through bluetooth BLE. A demonstration can found here... https://youtu.be/WhLtSxZYeVs With Our Battery Monitor hardware and this App, you can check your battery’s voltage quickly, easily and visualize. You must have specific hardware device for this App. Hardware is designed based on TI CC2541 and it's specification could found at http://www.ti.com/product/CC2541 Please contact us for more product detail.

About

BATT SYNC

Features
Read full description

BATT SYNC is a wireless battery & electrical system tester controlled by our applications. It also comes with an automatic battery monitor and saves the results into the built-in calendar. Furthermore, BATT SYNC supports our cloud data management service as well. Features: 1. Battery Monitor Real-time battery monitoring and sends out notification automatically. 2. Battery, Cranking, & Charging system tester 12V battery / 12V START-STOP battery test / 12V & 24V cranking/charging system test / 3. Start/Stop Battery Test Available Performs accurate test for Start/Stop batteries. 4. Graphical User Interface The interactive interface makes the operation easier and provides the test results clearly. 5. Vehicle & Battery Info Available Supports VIN & Battery S/N scan 6. Customer & Shop Info Available Capable of editing & saving customer & shop info. 7. Calendar Easily identifies which and when that the test has been performed from the calendar. 8. Remote Control via Applications All the test procedures are remotely controlled by the iOS application. 9. Share Test Results Capability Test results could be share via communication applications or email 10. Cloud Data Management Capability Supports our cloud data management service 11. Field Upgrade Upgrades the tester via our applications. 12. Name the Tester Able to name different testers to easily identify multiple testers. 13. Group Test Capability Able to perform group/batch battery test.

Screenshots

BLECarVoltage3 screens
BATT SYNC4 screens

Verdict

The call

The clearest difference is iOS requirement: BLECarVoltage at 9.0 against BATT SYNC's 15.6. On price, update cadence, ads and in-app purchases there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

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

UpkeepUpdate frequency

BLECarVoltage ships an update every 4 months, BATT SYNC every 6 months. The most recent releases landed on October 10, 2026 and October 8, 2026 respectively.

Scorecard1 real difference Β· 5 level
BLECarVoltage versus BATT SYNC: the parameters behind the verdict, then further details
ParameterBLECarVoltageBATT SYNC
PriceFreeFree
Update frequencyEvery 4 months β€” betterEvery 6 months
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPodiPhone, iPod
Requires iOS9.0 β€” better15.6
Further details β€” not scored
Size55 MB34 MB
Age rating4+4+
DeveloperLongfellow ChenDHC Specialty Corp.

In-app purchases

None

BLECarVoltage

No in-app purchases

None

BATT SYNC

No in-app purchases

Questions

Is BLECarVoltage free?
BLECarVoltage is free to download, with no in-app purchases.
Is BATT SYNC free?
BATT SYNC is free to download, with no in-app purchases.
Do BLECarVoltage or BATT SYNC have ads?
Neither BLECarVoltage nor BATT SYNC shows ads.
Which is updated more often, BLECarVoltage or BATT SYNC?
BLECarVoltage ships an update every 4 months, and BATT SYNC every 6 months. Most recently, BLECarVoltage was updated on October 10, 2026 and BATT SYNC on October 8, 2026.

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