# BS Solar vs SMART ESS

The clearest difference is update cadence: SMART ESS at every 4 days against BS Solar's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

BS Solar ships an update every 2 months, SMART ESS every 4 days. The most recent releases landed on October 15, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | BS Solar | SMART ESS |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 4 days** |
| Monetization | Free | — |
| Size | 17 MB | 32 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Suzhou Jiale Information Technology Co., Ltd.](https://appshunter.io/developer/1171647925) | [深圳市集智电子有限公司](https://appshunter.io/developer/1655111205) |

## What reviewers say

### BS Solar

[App page](https://appshunter.io/ios/app/bs-solar/id1528932223)

This app allows users to easily view photovoltaic (PV) data from their solar systems. It provides detailed graphics on power output, generated energy, and system yield, supporting end-users, distributors, and installers. Registration is required to use the app with your plant.

**Highlights:** Easy PV data viewing, System performance graphics, Power output monitoring, Generated energy tracking, Yield information, Supports end-users, distributors, and installers

**Features:** macOS Compatibility

**In-app purchases:** none


### SMART ESS

[App page](https://appshunter.io/ios/app/smart-ess/id6478477932)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is BS Solar free?

BS Solar is free to download, with no in-app purchases.

### Is SMART ESS free?

SMART ESS is free to download, with no in-app purchases.

### Do BS Solar or SMART ESS have ads?

Neither BS Solar nor SMART ESS shows ads.

### Which is updated more often, BS Solar or SMART ESS?

BS Solar ships an update every 2 months, and SMART ESS every 4 days. Most recently, BS Solar was updated on October 15, 2026 and SMART ESS on October 10, 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.*