# Ecotech Solar vs Arch Solar

The clearest difference is update cadence: Ecotech Solar at every 2 months against Arch Solar's every 8 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.

Ecotech Solar ships an update every 2 months, Arch Solar every 8 months. The most recent releases landed on October 18, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Ecotech Solar | Arch Solar |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 8 months |
| Size | 3 MB | 7 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ECOTECH ENERGY SYSTEMS LLC](https://appshunter.io/developer/1765191081) | [Arch Solar](https://appshunter.io/developer/1819647737) |

## What reviewers say

### Ecotech Solar

[App page](https://appshunter.io/ios/app/ecotech-solar/id6670178602)

**Features:** macOS Compatibility

**In-app purchases:** none


### Arch Solar

[App page](https://appshunter.io/ios/app/arch-solar/id6747055078)

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

**In-app purchases:** none


## Frequently asked questions

### Is Ecotech Solar free?

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

### Is Arch Solar free?

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

### Do Ecotech Solar or Arch Solar have ads?

Neither Ecotech Solar nor Arch Solar shows ads.

### Which is updated more often, Ecotech Solar or Arch Solar?

Ecotech Solar ships an update every 2 months, and Arch Solar every 8 months. Most recently, Ecotech Solar was updated on October 18, 2026 and Arch Solar 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.*