# BMS vs Solar Setup

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.

Both are free to download. Solar Setup sells 1 one-off in-app purchase. BMS asks for nothing beyond the download.

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.

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.

## The numbers

| Metric | BMS | Solar Setup |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/bms-tool/id6471949475/reviews)** | [4.0 (1 ratings)](https://appshunter.io/ios/app/solar-setup-off-grid-calc/id6771114823/reviews) |
| Number of ratings | **2** | 1 |
| Positive reviews | 20.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 2 days** |
| Monetization | **Free** | Freemium |
| Size | 40 MB | 46 MB |
| Requires iOS | 15.0 | **14.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [秀丽 唐](https://appshunter.io/developer/1715570419) | [Ammar Khatib](https://appshunter.io/developer/1613990135) |

## What reviewers say

### BMS

[App page](https://appshunter.io/ios/app/bms-tool/id6471949475)

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

**In-app purchases:** none


### Solar Setup

[App page](https://appshunter.io/ios/app/solar-setup-off-grid-calc/id6771114823)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Solar Setup Pro | $6.99 | one-time |


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*