Comparison

SMART BMS vs Overkill Solar

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

Head to head
About

SMART BMS

Connect to and manage your lithium battery via Bluetooth. Monitor battery status, query information, and set safety parameters. Receive alerts for battery faults and track their occurrences.

Highlights
  • Bluetooth battery connection
  • Battery status query
  • Fault alarm monitoring
  • Safety parameter settings
  • Password protection for settings
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;

About

Overkill Solar

This app connects to a solar battery management system to provide detailed monitoring and control. Users can track cell voltage, capacity, current, and manage charging/discharging ports. It also offers advanced configuration options for calibration, balancing, and protection settings.

Highlights
  • Monitor cell voltage and capacity
  • Control charging and discharging ports
  • Calibrate voltage and current
  • Configure balancer and protection values
  • Log voltage, current, and power
  • Monitor BMS alarms and temperature
Features
Read full description

Overkill Solar iOS App allows users to connect with the Overkill Solar Battery Management System (BMS). It can monitor voltage of the cells, total capacity, charging and discharging current, and switch the charging and discharging ports on or off. Features: - change bluetooth advertising name - unlock hardware protected BMS - save or load BMS configurations - calibrate cells voltage and charging or discharging current - log maximum or minimum voltage, current and power - enable and configure the balancer - modify the capacity settings - monitor temperature - monitor BMS alarms - import and export .fig files - set level 2 and 3 advanced protection values

Screenshots

SMART BMS3 screens
Overkill Solar4 screens

Verdict

The call

The clearest difference is review sentiment: Overkill Solar at 100% against SMART BMS's 17%. Overkill Solar also leads on rating (4.7 vs 2.1). SMART BMS's advantage is update cadence (every 6 weeks vs every 4 months) and ratings volume (76 vs 16). 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.

ReceptionRating · Positive reviews · Number of ratings

Overkill Solar holds the better App Store score, 4.7 against 2.1. Both are backed by a comparable volume of ratings — 76 and 16 respectively. Written reviews point the same way: 17% of SMART BMS's written reviews are positive against 100% of Overkill Solar's.

UpkeepUpdate frequency

SMART BMS ships an update every 6 weeks, Overkill Solar every 4 months. The most recent releases landed on October 7, 2026 and September 28, 2026 respectively.

Scorecard5 real differences · 5 level
SMART BMS versus Overkill Solar: the parameters behind the verdict, then further details
ParameterSMART BMSOverkill Solar
PriceFreeFree
Rating2.1 (76 ratings)4.7 (16 ratings) — better
Positive reviews17.3% of reviews100.0% of reviews — better
Number of ratings76 — better16
Update frequencyEvery 6 weeks — betterEvery 4 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS11.0 — better13.4
Further details — not scored
Size65 MB21 MB
Age rating4+4+
Developer所兵 邱Overkill Solar LLC

Customer experience

SMART BMS

All ratings76 ratings
Positive19.7%
Neutral13.2%
Negative67.1%
Written reviews266 reviews
Positive17.3%
Neutral10.5%
Negative72.2%

Overkill Solar

All ratings16 ratings
Positive87.5%
Neutral12.5%
Negative0.0%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

SMART BMS

Reported bugs

5 issues
  • Bluetooth connectivity problems
  • Incorrect series/parallel configuration display
  • Firmware update issues
  • Inconsistent data readings
  • Inability to change settings

Requested features

5 requests
  • Dark mode option
  • Logging and historical data
  • Better parameter customization
  • Improved battery monitoring metrics
  • Apple Watch support

Overkill Solar

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

SMART BMS

No in-app purchases

None

Overkill Solar

No in-app purchases

Questions

Is SMART BMS free?
SMART BMS is free to download, with no in-app purchases.
Is Overkill Solar free?
Overkill Solar is free to download, with no in-app purchases.
Which has better reviews, SMART BMS or Overkill Solar?
Overkill Solar is rated higher. SMART BMS averages 2.1 out of 5 from 76 ratings, while Overkill Solar averages 4.7 from 16 ratings.
Do SMART BMS or Overkill Solar have ads?
Neither SMART BMS nor Overkill Solar shows ads.
Which is updated more often, SMART BMS or Overkill Solar?
SMART BMS ships an update every 6 weeks, and Overkill Solar every 4 months. Most recently, SMART BMS was updated on October 7, 2026 and Overkill Solar on September 28, 2026.

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