Comparison

BMS vs PV Calculator.

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

Head to head
About

BMS

Monitor and manage your device's battery health with real-time data, historical records, and customizable alerts for over-charge, over-discharge, and temperature. Connect locally via Bluetooth or remotely via Wi-Fi to track battery status, cell performance, and potential issues.

Highlights
  • Real-time battery data (current, voltage, SOC, SOH)
  • Cell-level monitoring
  • Historical alarm and protection records
  • Customizable warning values
  • Bluetooth and Wi-Fi connectivity
  • Device sharing and management
Read full description

This app allows users to bind their devices easily and conveniently at anytime and anywhere,view battery health status, and record, diagnose and warn the real-time status of the battery.It is a good helper for users in operating and maintaining their devices. 【Parameter settings】 Preset warning values for over-charge, over-discharge , over-current, and over-temperature,When the battery status reaches the preset warning value, the system will send out an alarm signal to remind users to pay attention to the battery's status and performance. 【Real-time data】 Summary data: including battery current, voltage, number of cells, cycle times, SOC, SOH, temperature and other parameters; Cell data: including independent voltage, independent current, cycle times, SOC, SOH, temperature and other parameters of the cell; Voltage temperature: including the number of cells, cell voltage, cell temperature and other parameters; Status data: including protection, indication, control, fault, battery balance, alarm and other status. 【Historical data】 Record the alarm state, protection state, fault occurrence state and development process of the battery history,which can help the users to understand the state and performance of the battery. 【Connection method】 Local control: Through Bluetooth communication, no need to log in with an account, directly search for nearby Bluetooth signals, one-to-one connection, ready to use; Remote control: through WIFI communication,need to register an account to log in, the APP and the device will automatically perform network distribution operations, and bind the account and device. 【My device】 Forgot password: reset password through email; Edit device: Long press the device item, the edit menu will pop up at the bottom, you can modify the device nickname or delete the device; Share device: Long press the device item, the device administrator who first configures the network and binds the account, can generate a QR code for the device for other users to scan the code to add.

About

PV Calculator.

This tool simplifies solar photovoltaic system design and analysis for professionals and students. It offers a comprehensive Energy Hub with multiple calculators, providing instant results, visual charts, and clear insights for efficient PV system planning and optimization.

Highlights
  • Energy Hub with multiple solar calculators
  • Calculate solar panel power output
  • Analyze energy generation (daily, monthly, yearly)
  • Design solar array size
  • Calculate system voltage and configuration
  • Instant calculation results
  • Visual charts and performance summaries
Features
Read full description

PV Calculator is a smart and easy-to-use solar photovoltaic calculation tool designed for solar professionals, engineers, students, and renewable energy planners. The app provides a complete Energy Hub with multiple solar calculators that help you design, analyze, and optimize PV systems efficiently. With clear inputs, visual charts, and instant results, PV Calculator simplifies complex solar calculations into an intuitive experience. Key Modules & Features: Access all essential PV calculators from a single dashboard for quick system planning. Calculate solar panel power output and view performance distribution with clear visual insights. Analyze daily, monthly, and yearly energy generation with easy-to-read charts. Design solar array size based on system parameters, efficiency, and environmental factors. Calculate required system voltage and electrical configuration for PV installations. Highlights: - Instant calculation results - Visual charts and performance summaries - Clean, modern, and easy UI - Accurate solar PV system planning - Ideal for rooftop and small-scale solar projects - Useful for education, planning, and field reference PV Calculator helps you make informed decisions when designing and evaluating solar photovoltaic systems—quickly, accurately, and confidently. in-app purchase included 
 Lifetime to Remove Ads Privacy Policy : https://docs.google.com/document/d/1Dn1gNdDP2AHL7sg-px4rxdLAcoGHlNB8/edit#heading=h.1ionsc3v3xmq Terms and Condition : https://docs.google.com/document/d/1t-LREPKByKaM0UkbIo4o0E1gdAYs21Oe30EfGxenEss/edit?usp=sharing

Screenshots

BMS4 screens
PV Calculator.4 screens

Verdict

The call

The clearest difference is rating: PV Calculator. at 5.0 against BMS's 4.3. PV Calculator. also leads on iOS requirement (13.0 vs 15.0). BMS's advantage is in-app purchases (none vs 1) and update cadence (every 6 weeks vs every 7 months). On price, ratings volume, ads and device support 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. PV Calculator. sells 1 one-off in-app purchase. BMS asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

PV Calculator. holds the better App Store score, 5.0 against 4.3. Both are backed by a comparable volume of ratings — 3 and 2 respectively.

UpkeepUpdate frequency

BMS ships an update every 6 weeks, PV Calculator. every 7 months. The most recent releases landed on November 14, 2026 and November 5, 2026 respectively.

Scorecard5 real differences · 5 level
BMS versus PV Calculator.: the parameters behind the verdict, then further details
ParameterBMSPV Calculator.
PriceFreeFree
Rating4.3 (3 ratings)5.0 (2 ratings) — better
Positive reviews20.0% of reviews—
Number of ratings3 — better2
Update frequencyEvery 6 weeks — betterEvery 7 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.013.0 — better
Further details — not scored
Size40 MB52 MB
Age rating17+4+
Developer秀丽 唐Nanjibhai Gorasiya

Customer experience

BMS

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 reviews
Positive20.0%
Neutral60.0%
Negative20.0%

PV Calculator.

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

BMS

No in-app purchases

1 purchases

PV Calculator.

One-time1
  • Lifetime premium$9.99

Questions

Is BMS free?
BMS is free to download, with no in-app purchases.
Is PV Calculator. free?
PV Calculator. is free to download, with in-app purchases available.
Which has better reviews, BMS or PV Calculator.?
PV Calculator. is rated higher. BMS averages 4.3 out of 5 from 3 ratings, while PV Calculator. averages 5.0 from 2 ratings.
Do BMS or PV Calculator. have ads?
Neither BMS nor PV Calculator. shows ads.
Which is updated more often, BMS or PV Calculator.?
BMS ships an update every 6 weeks, and PV Calculator. every 7 months. Most recently, BMS was updated on November 14, 2026 and PV Calculator. on November 5, 2026.

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