# Azimutis vs Erebus Solar

The clearest difference is review sentiment: Azimutis at 50% against Erebus Solar's 0%. Azimutis also leads on update cadence (every 4 days vs every 2 weeks). Erebus Solar's advantage is in-app purchases (none vs 2). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Azimutis sells 2 in-app purchases, starting at $35.00 per month. Erebus Solar asks for nothing beyond the download.

Azimutis ships an update every 4 days, Erebus Solar every 2 weeks. The most recent releases landed on October 8, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Azimutis | Erebus Solar |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.7 (3 ratings)](https://appshunter.io/ios/app/erebus-solar/id6790828521/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | **50.0% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 2 weeks |
| Monetization | Freemium | **Free** |
| Size | 78 MB | 19 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Frederic Billon](https://appshunter.io/developer/1811407676) | [Todd Evans](https://appshunter.io/developer/6790828523) |

## What reviewers say

### Azimutis

[App page](https://appshunter.io/ios/app/azimutis-solar-shade-tool/id6745228060)

This app assists solar professionals in conducting site surveys and pre-assessments by quickly evaluating solar potential and shading impact. It generates detailed reports and simulations to aid in feasibility studies and documentation for PV projects.

**Highlights:** Fast horizon profile capture, Shading impact analysis, PV yield potential estimation, Height simulation for structures, Customizable PDF reports, Project management and synchronization

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Azimutis Pro – Monthly | $35.00 | per month |
| Azimutis Pro – Annual | $129.00 | per year |


### Erebus Solar

[App page](https://appshunter.io/ios/app/erebus-solar/id6790828521)

This app helps solar professionals measure on-site shade using their phone's sensors. It generates horizon files compatible with leading PV design software, aiding in accurate solar production estimates.

**Highlights:** AR sun path visualization, Automatic sky capture, Sky Editor for obstruction tracing, Annual solar access analysis, PDF shade report export, Horizon file generation for design tools, Project organization by site

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

**In-app purchases:** none


## Frequently asked questions

### Is Azimutis free?

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

### Is Erebus Solar free?

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

### Do Azimutis or Erebus Solar have ads?

Neither Azimutis nor Erebus Solar shows ads.

### Which is updated more often, Azimutis or Erebus Solar?

Azimutis ships an update every 4 days, and Erebus Solar every 2 weeks. Most recently, Azimutis was updated on October 8, 2026 and Erebus Solar on October 14, 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.*