Comparison

Power Estimator vs BMS

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

Head to head
About

Power Estimator

Features
Read full description

Power Estimator is the essential tool for planning and monitoring off-grid power systems. Whether you're designing a solar installation, managing an RV setup, or maintaining a remote cabin, this calculator provides accurate battery charge predictions based on your specific configuration. Key Features: β€’ Solar Power Optimization - Configure panels with efficiency factors, shading, and real-time weather integration β€’ Real Weather Data - NOAA integration provides accurate solar generation based on your location's sunrise, sunset, and cloud cover β€’ Battery Management - Track charge levels over time with percentage, watt-hour, and voltage display modes β€’ Load Scheduling - Set up primary loads and additional devices with custom time schedules β€’ Multi-Source Power - Include generators and other power inputs in your calculations β€’ Interactive Charts - Visualize battery levels, solar generation, consumption, and weather conditions β€’ Multi-Day Forecasting - Plan ahead with calculations spanning days or weeks β€’ Location Flexibility - Use GPS or enter custom locations for weather-accurate results Perfect for solar installers, RV enthusiasts, off-grid homeowners, and anyone planning power-independent systems. Get precise estimates to ensure your batteries never run out when you need them most.

About

BMS

Features
Read full description

BMS-Li is a professional battery management system monitoring app designed for 48V Li-ion battery packs. With Bluetooth connectivity, you can monitor battery status in real time, view detailed parameters, and receive instant alerts. Key Features: β€’ Real-time monitoring β€” Track pack voltage, total current, cell temperatures, SOC, SOH, and remaining capacity at a glance. β€’ Comprehensive alarm system β€” Get instant notifications for over-voltage, under-voltage, over-current, over-temperature, under-temperature, short circuit, and more. β€’ Protection status overview β€” Monitor charging/discharging MOS status, cell balancing, and all protection triggers. β€’ Parameter configuration β€” Read and write BMS parameters including voltage thresholds, current limits, temperature protections, and sleep settings directly from your phone. β€’ Multi-language support β€” English, Chinese, Spanish, and Russian. Designed for use with DFUN BMS hardware products.

Screenshots

Power Estimator4 screens
BMS4 screens

Verdict

The call

The clearest difference is iOS requirement: BMS at 13.0 against Power Estimator's 26.0. 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.

Scorecard1 real difference Β· 4 level
Power Estimator versus BMS: the parameters behind the verdict, then further details
ParameterPower EstimatorBMS
PriceFreeFree
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, Vision Pro β€” betteriPhone, iPod
Requires iOS26.013.0 β€” better
Further details β€” not scored
Size2 MB31 MB
Age rating4+4+
DeveloperArutunian LLCη ζ΅·δΈœεΈ†η§‘ζŠ€ζœ‰ι™ε…¬εΈ

In-app purchases

None

Power Estimator

No in-app purchases

None

BMS

No in-app purchases

Questions

Is Power Estimator free?
Power Estimator is free to download, with no in-app purchases.
Is BMS free?
BMS is free to download, with no in-app purchases.
Do Power Estimator or BMS have ads?
Neither Power Estimator nor BMS shows ads.

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