Comparison

eRacingBattery vs Gaius Diagnostic

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

Head to head
About

eRacingBattery

Features
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The eRacingBattery APP is a platform provided by aRacer for monitoring and adjusting racing battery. It offers data monitoring, function switching and data recording etc. The eRacingBattery has built-in powerful features, including: 1. Individual cell voltage and total voltage monitoring. 2. Current monitoring. 3. Over-voltage, over-current, and short circuit protection. 4. Protection status monitoring (fault codes, cell protection, balancing). 5. MOS temperature, mainboard temperature, and shunt temperature monitoring. 6. LED indicator lights (Bluetooth connection: blue flashing, Touch indication: steady blue). 7. Battery state of charge (SoC). 8. Touch wake-up function (to wake up from ECO mode). 9. ECO/BOSS mode. Please note the following: Before using the product, please carefully read this user manual and ensure that you fully understand and comply with the instructions. The company will not be held responsible for any damages resulting from improper use of the product contrary to the instructions provided in this manual. Do not place the battery near a fire source or in an environment with temperatures exceeding 60 degrees Celsius to avoid overheating or safety issues. Do not place the battery in locations where it may be splashed or exposed to water or saltwater to prevent damage or short circuits. Do not short-circuit the positive and negative terminals of the battery to avoid excessive current and battery damage. Do not reverse the positive and negative terminals of the battery with the device to prevent incorrect current flow and damage to the device. Do not disassemble or modify the battery, as this may result in battery damage, leakage, or the release of hazardous substances. Please dispose of the battery properly by handing it over to professionals. If you notice abnormally high temperature, unusual odor, or fire from the battery, immediately stop using the battery and seek professional assistance to prevent potential hazards. Unless the product itself has manufacturing defects, the company will not be held responsible for any damages caused by the product's improper use contrary to the instructions provided in this manual.

About

Gaius Diagnostic

Features
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Screenshots

eRacingBattery1 screens
Gaius Diagnostic3 screens

Verdict

The call

The clearest difference is update cadence: eRacingBattery at every 6 weeks against Gaius Diagnostic's every 6 months. eRacingBattery also leads on iOS requirement (12.0 vs 15.0). On price, ads, in-app purchases and device support 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

eRacingBattery ships an update every 6 weeks, Gaius Diagnostic every 6 months. The most recent releases landed on October 10, 2026 and October 25, 2026 respectively.

Scorecard2 real differences Β· 4 level
eRacingBattery versus Gaius Diagnostic: the parameters behind the verdict, then further details
ParametereRacingBatteryGaius Diagnostic
PriceFreeFree
Update frequencyEvery 6 weeks β€” betterEvery 6 months
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPodiPhone, iPad, iPod β€” better
Requires iOS12.0 β€” better15.0
Further details β€” not scored
Size18 MB172 MB
Age rating4+4+
DeveloperARACER SPEEDTEK INC.GAIUS AUTOMOTIVE INC.

In-app purchases

None

eRacingBattery

No in-app purchases

None

Gaius Diagnostic

No in-app purchases

Questions

Is eRacingBattery free?
eRacingBattery is free to download, with no in-app purchases.
Is Gaius Diagnostic free?
Gaius Diagnostic is free to download, with no in-app purchases.
Do eRacingBattery or Gaius Diagnostic have ads?
Neither eRacingBattery nor Gaius Diagnostic shows ads.
Which is updated more often, eRacingBattery or Gaius Diagnostic?
eRacingBattery ships an update every 6 weeks, and Gaius Diagnostic every 6 months. Most recently, eRacingBattery was updated on October 10, 2026 and Gaius Diagnostic on October 25, 2026.

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