Comparison

BMS vs Solar Setup

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

Solar Setup

Effortlessly plan your off-grid solar system. This tool calculates panel, battery, and inverter needs based on your location, power usage, and desired backup days, providing cost and payback estimates.

Highlights
  • Off-grid solar sizing
  • Appliance catalog
  • Real sun-hours data
  • Battery science calculations
  • Inverter surge load handling
  • Cost and payback estimates
  • Save and compare setups
Features
Read full description

Plan your off-grid solar setup in minutes. Solar Setup Calculator turns your appliance list into a complete, sized system — solar panels, battery bank, inverter, and charge controller — with real-world cost estimates and payback time. No spreadsheets. No installer sales calls. Just answer three questions about where you live, how much power you use, and how many days of battery backup you want — and the app does the off-grid solar math using the same formulas professional installers use. WHY IT'S DIFFERENT * Off-grid solar sizing built for everyone, not just installers. Pick appliances from a built-in catalog of 30+ common loads (fridges, lights, laptops, AC units, water pumps) or type in your own watts and hours. * Real sun-hours data, not guesses. The app pulls NASA POWER satellite data for your exact location on demand, so your panel count reflects what your roof actually gets — not a generic regional average. * Real battery science. Lithium and lead-acid have very different depth-of-discharge limits and round-trip efficiency. The calculator handles both correctly so your battery bank is sized for what it can actually deliver, not what's printed on the label. * Inverter sizing that handles surge loads. Air conditioners, fridges, and pumps draw 3 to 5 times their rated wattage during startup. The app accounts for this so your inverter doesn't trip out on day one. * Cost and payback estimates. Add your local kWh price and see how many years until your solar setup pays for itself versus staying on the grid. * Save and compare. Try different configurations side-by-side — 12V vs 24V vs 48V, lithium vs lead-acid, 1 day vs 3 days of backup — and see which one wins on cost and reliability. * Export as PDF. Share your sized system with an installer or supplier as a clean, professional PDF — no spreadsheet attachments. BUILT FOR - RV and van life — calculate solar for your rig with realistic appliance assumptions - Tiny house and cabin — design a system sized for your real consumption - Backyard sheds, workshops, and outbuildings — keep your tools running without trenching mains - Backup power for grid-tied homes — size a battery bank for blackouts - Marine solar setups — the same off-grid math works on a boat FREE FOREVER - Unlimited setups and saved designs - Cloud sync across devices (optional) - Full off-grid sizing wizard - NASA POWER sun-hours refresh - Built-in solar education library PRO — ONE-TIME $6.99, LIFETIME - PDF export of your sized system - Side-by-side comparison of multiple setups No subscriptions. No ads. Pay once, keep forever. THE STORY Solar Setup Calculator was built by an off-grid enthusiast frustrated with calculators that sized panels for daytime use only and left batteries empty by midnight. The app uses the full daily kWh figure for panel sizing, accounts for system losses, and handles depth-of-discharge correctly — the same way a professional designer would. Whether you're planning a weekend cabin, going full-time off-grid, or just curious what it would take to cover your fridge with solar — Solar Setup Calculator gives you a real answer in 5 minutes. Download free, design unlimited setups, and pay once for Pro if you need the comparison view or PDF export.

Screenshots

BMS4 screens
Solar Setup4 screens

Verdict

The call

The clearest difference is rating: BMS at 5.0 against Solar Setup's 4.0. BMS also leads on in-app purchases (none vs 1). Solar Setup's advantage is update cadence (every 2 days vs every 6 weeks). 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. Solar Setup sells 1 one-off in-app purchase. BMS asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

BMS holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

UpkeepUpdate frequency

BMS ships an update every 6 weeks, Solar Setup every 2 days. The most recent releases landed on November 4, 2026 and November 5, 2026 respectively.

Scorecard4 real differences · 6 level
BMS versus Solar Setup: the parameters behind the verdict, then further details
ParameterBMSSolar Setup
PriceFreeFree
Rating5.0 (2 ratings) — better4.0 (1 ratings)
Positive reviews20.0% of reviews—
Number of ratings2 — better1
Update frequencyEvery 6 weeksEvery 2 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.014.0 — better
Further details — not scored
Size40 MB46 MB
Age rating17+4+
Developer秀丽 唐Ammar Khatib

In-app purchases

None

BMS

No in-app purchases

1 purchases

Solar Setup

One-time1
  • Solar Setup Pro$6.99

Questions

Is BMS free?
BMS is free to download, with no in-app purchases.
Is Solar Setup free?
Solar Setup is free to download, with in-app purchases available.
Which has better reviews, BMS or Solar Setup?
BMS is rated higher. BMS averages 5.0 out of 5 from 2 ratings, while Solar Setup averages 4.0 from 1 ratings.
Do BMS or Solar Setup have ads?
Neither BMS nor Solar Setup shows ads.
Which is updated more often, BMS or Solar Setup?
BMS ships an update every 6 weeks, and Solar Setup every 2 days. Most recently, BMS was updated on November 4, 2026 and Solar Setup on November 5, 2026.

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