# Xiaoxiang BMS vs PV Solar Forecast

The clearest difference is review sentiment: Xiaoxiang BMS at 55% against PV Solar Forecast's 19%. Xiaoxiang BMS also leads on update cadence (every 4 weeks vs every 3 months). PV Solar Forecast's advantage is rating (4.0 vs 3.6) and iOS requirement (13.0 vs 16.0). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Xiaoxiang BMS sells 1 one-off in-app purchase and PV Solar Forecast sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

PV Solar Forecast holds the better App Store score, 4.0 against 3.6. Both are backed by a comparable volume of ratings — 66 and 43 respectively. Written reviews complicate that: 55% of Xiaoxiang BMS's written reviews are positive against 19% of PV Solar Forecast's, so the app with the better star average is not the one people write more warmly about.

Xiaoxiang BMS ships an update every 4 weeks, PV Solar Forecast every 3 months. Both last shipped on September 23, 2026.

## The numbers

| Metric | Xiaoxiang BMS | PV Solar Forecast |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.6 (66 ratings)](https://appshunter.io/ios/app/xiaoxiang-bms/id1375405426/reviews) | **[4.0 (43 ratings)](https://appshunter.io/ios/app/pv-solar-forecast/id1496274910/reviews)** |
| Number of ratings | **66** | 43 |
| Positive reviews | **54.5% of reviews** | 18.8% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 4 weeks** | Every 3 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 10 MB | 46 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [e77code GmbH](https://appshunter.io/developer/1375405425) | [Igor Ilijovski](https://appshunter.io/developer/1492982127) |

## What reviewers say

### Xiaoxiang BMS

[App page](https://appshunter.io/ios/app/xiaoxiang-bms/id1375405426)

Monitor and manage your Bluetooth-enabled battery management systems (BMS) for Li-Ion and LiFePo4 packs. Track cell voltage, capacity, current, and temperature. Switch battery outputs on/off and configure settings remotely.

**Highlights:** Monitor cell voltage, capacity, current, and temperature, Switch battery output on/off, Calibrate cell voltage and current, Configure balancer and BMS capacity, Change Bluetooth advertised name, Unlock hardware protected BMS (firmware v20+), Set PIN code for BMS access

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Version | $7.99 | one-time |


### PV Solar Forecast

[App page](https://appshunter.io/ios/app/pv-solar-forecast/id1496274910)

Predict your solar power generation for up to 360 hours and 15 days ahead. This tool helps you save energy and money by planning appliance usage, EV charging, and understanding your system's output. It also provides detailed weather forecasts and data export options.

**Highlights:** 360-hour solar production forecast, 15-day daily solar production forecast, 12-month monthly generation forecasts, CSV data export, Current power estimation, Global location forecasting, Hourly weather forecast

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock all features | $9.99 | per month |
| Unlock all features | $39.99 | per year |


## Frequently asked questions

### Is Xiaoxiang BMS free?

Xiaoxiang BMS is free to download, with in-app purchases available.

### Is PV Solar Forecast free?

PV Solar Forecast is free to download, with in-app purchases available.

### Which has better reviews, Xiaoxiang BMS or PV Solar Forecast?

PV Solar Forecast is rated higher. Xiaoxiang BMS averages 3.6 out of 5 from 66 ratings, while PV Solar Forecast averages 4.0 from 43 ratings.

### Do Xiaoxiang BMS or PV Solar Forecast have ads?

Both Xiaoxiang BMS and PV Solar Forecast show ads.

### Which is updated more often, Xiaoxiang BMS or PV Solar Forecast?

Xiaoxiang BMS ships an update every 4 weeks, and PV Solar Forecast every 3 months. Most recently, Xiaoxiang BMS was updated on September 23, 2026 and PV Solar Forecast on September 23, 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.*