# We Do Solar vs BD Contern

The clearest difference is device support: We Do Solar at 3 against BD Contern's —. We Do Solar also leads on iOS requirement (13.0 vs 15.1). On price, update cadence and in-app purchases there is nothing between them.

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

We Do Solar ships an update every 7 months, BD Contern every 10 months. The most recent releases landed on October 4, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | We Do Solar | BD Contern |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | — |
| Update frequency | **Every 7 months** | Every 10 months |
| Monetization | Ad-supported | — |
| Size | 62 MB | 55 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [WeDoSolar GmbH](https://appshunter.io/developer/1609954319) | [MackNet Sarl](https://appshunter.io/developer/484649388) |

## What reviewers say

### We Do Solar

[App page](https://appshunter.io/ios/app/we-do-solar/id1609954317)

Monitor your solar energy production in real-time with this app. View your system's output and performance data anytime, anywhere. Note: This app is not compatible with AP-Systems microinverters.

**Highlights:** Real-time production data, Solar system performance tracking, Anytime, anywhere access, Compatibility information

**Features:** macOS Compatibility

**In-app purchases:** none


### BD Contern

[App page](https://appshunter.io/ios/app/bd-contern/id6503652478)

**In-app purchases:** none


## Frequently asked questions

### Is We Do Solar free?

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

### Is BD Contern free?

BD Contern is free to download, with no in-app purchases.

### Which is updated more often, We Do Solar or BD Contern?

We Do Solar ships an update every 7 months, and BD Contern every 10 months. Most recently, We Do Solar was updated on October 4, 2026 and BD Contern on October 2, 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.*