Comparison

Overkill Solar vs CST Energy

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

Head to head
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

About

CST Energy

Features
Read full description

CST Energy是拥有德国研发专利的智能制造工厂,依托德国储能技术,CST为世界成千上万的安装商提供储能产品及储能解决方案。我们相信,锂电之光由我所照,光之所及由我所储。

Screenshots

Overkill Solar4 screens
CST Energy4 screens

Verdict

The call

Overkill Solar and CST Energy are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Both ship on a similar rhythm, roughly every 4 months. The most recent releases landed on October 14, 2026 and October 2, 2026 respectively.

ScorecardNo meaningful differences
Overkill Solar versus CST Energy: the parameters behind the verdict, then further details
ParameterOverkill SolarCST Energy
PriceFreeFree
Rating4.7 (16 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings16 — better—
Update frequencyEvery 4 monthsEvery 4 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS13.412.0 — better
Further details — not scored
Size21 MB34 MB
Age rating4+4+
DeveloperOverkill Solar LLC亘能科技有限公司

In-app purchases

None

Overkill Solar

No in-app purchases

None

CST Energy

No in-app purchases

Questions

Is Overkill Solar free?
Overkill Solar is free to download, with no in-app purchases.
Is CST Energy free?
CST Energy is free to download, with no in-app purchases.
Do Overkill Solar or CST Energy have ads?
Neither Overkill Solar nor CST Energy shows ads.
Which is updated more often, Overkill Solar or CST Energy?
Overkill Solar ships an update every 4 months, and CST Energy every 4 months. Most recently, Overkill Solar was updated on October 14, 2026 and CST Energy on October 2, 2026.

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