Comparison

MarsBMS vs KeepKnow

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

Head to head
About

MarsBMS

Features
Read full description

MarsBMS is a powerful and easy-to-use app designed for intelligent lithium battery systems. Connect via Bluetooth or Wi-Fi to monitor your battery anytime, anywhere. KEY FEATURES Real-Time Monitoring Stay informed with live data, including State of Charge (SOC), voltage, current, temperature, charge/discharge status, protection status, balancing status, and individual cell voltages. Bluetooth & Wi-Fi Connectivity Connect locally via Bluetooth or access your system remotely over Wi-Fiβ€”flexible for both on-site and off-site monitoring. Global Language Support Supports 9 languages: Chinese, English, Spanish, Portuguese, Russian, Arabic, French, Persian and Ukrainian Fast & Lightweight Optimized for speed and efficiency with a clean interface and minimal data usage. Secure by Design Read-only system architecture ensures your battery settings remain protectedβ€”no risk of accidental changes.

About

KeepKnow

Features
Read full description

The KeepKnow App connects to smart battery systems via Bluetooth and Wi-Fi, enabling real-time monitoring, remote control, and multi-battery management for energy storage applications

Screenshots

MarsBMS4 screens
KeepKnow4 screens

Verdict

The call

The clearest difference is update cadence: MarsBMS at daily against KeepKnow's every 3 months. 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

MarsBMS ships an update daily, KeepKnow every 3 months. The most recent releases landed on October 31, 2026 and November 5, 2026 respectively.

Scorecard1 real difference Β· 5 level
MarsBMS versus KeepKnow: the parameters behind the verdict, then further details
ParameterMarsBMSKeepKnow
PriceFreeFree
Update frequencyDaily β€” betterEvery 3 months
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPodiPhone, iPod
Requires iOS13.013.0
Further details β€” not scored
Size52 MB48 MB
Age rating4+4+
Developer卓文 撁KeepKnow New Energy Limited

In-app purchases

None

MarsBMS

No in-app purchases

None

KeepKnow

No in-app purchases

Questions

Is MarsBMS free?
MarsBMS is free to download, with no in-app purchases.
Is KeepKnow free?
KeepKnow is free to download, with no in-app purchases.
Do MarsBMS or KeepKnow have ads?
Neither MarsBMS nor KeepKnow shows ads.
Which is updated more often, MarsBMS or KeepKnow?
MarsBMS ships an update daily, and KeepKnow every 3 months. Most recently, MarsBMS was updated on October 31, 2026 and KeepKnow on November 5, 2026.

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