# OpenSolar vs Coperniq

The clearest difference is review sentiment: Coperniq at 82% against OpenSolar's 45%. Coperniq also leads on update cadence (every 8 days vs every 6 weeks). On price, ads, in-app purchases and monetization model there is nothing between them.

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

OpenSolar ships an update every 6 weeks, Coperniq every 8 days. The most recent releases landed on September 5, 2026 and August 19, 2026 respectively.

## The numbers

| Metric | OpenSolar | Coperniq |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (10 ratings)](https://appshunter.io/ios/app/opensolar/id1410085935/reviews)** | — |
| Number of ratings | **10** | — |
| Positive reviews | 45.5% of reviews | **81.8% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 8 days** |
| Monetization | Free | Free |
| Size | 216 MB | 226 MB |
| Requires iOS | **15.7** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [OpenSolar Pty Ltd](https://appshunter.io/developer/1340033321) | [Coperniq Inc.](https://appshunter.io/developer/1680516052) |

## What reviewers say

### OpenSolar

[App page](https://appshunter.io/ios/app/opensolar/id1410085935)

This free application provides a comprehensive solution for designing and selling solar energy systems. It offers end-to-end functionality for solar professionals.

**Highlights:** End-to-end solar design, Sales application, Free to use, Comprehensive functionality

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

**In-app purchases:** none


### Coperniq

[App page](https://appshunter.io/ios/app/coperniq/id6447186370)

Streamline your solar and energy contracting business with this mobile workflow management tool. Track projects, manage schedules, and access essential forms and checklists directly from your device.

**Highlights:** Project tracking, Schedule management, Inspection forms, Checklists, Service business management

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is OpenSolar free?

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

### Is Coperniq free?

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

### Do OpenSolar or Coperniq have ads?

Neither OpenSolar nor Coperniq shows ads.

### Which is updated more often, OpenSolar or Coperniq?

OpenSolar ships an update every 6 weeks, and Coperniq every 8 days. Most recently, OpenSolar was updated on September 5, 2026 and Coperniq on August 19, 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.*