# LSL ECAT vs Sunbase Solar Designer

The clearest difference is update cadence: LSL ECAT at fortnightly against Sunbase Solar Designer'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.

LSL ECAT ships an update fortnightly, Sunbase Solar Designer every 2 months. The most recent releases landed on October 27, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | LSL ECAT | Sunbase Solar Designer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sunbase-solar-designer/id1632238633/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 2 months |
| Monetization | — | Free |
| Size | 13 MB | 94 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Vivek Bansal](https://appshunter.io/developer/1609840051) | [Jared Dubin](https://appshunter.io/developer/1336351914) |

## What reviewers say

### LSL ECAT

[App page](https://appshunter.io/ios/app/lsl-ecat/id1609840049)

**Features:** macOS Compatibility

**In-app purchases:** none


### Sunbase Solar Designer

[App page](https://appshunter.io/ios/app/sunbase-solar-designer/id1632238633)

Design 3D solar and roofing layouts with advanced tools. Measure roofs, add obstacles like trees, and generate detailed performance simulations with shading analysis for accurate reports.

**Highlights:** 3D solar and roofing design, Roof measurement tools, Obstacle placement (trees), Lidar data integration, Performance simulations, Shading analysis reports

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is LSL ECAT free?

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

### Is Sunbase Solar Designer free?

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

### Do LSL ECAT or Sunbase Solar Designer have ads?

Neither LSL ECAT nor Sunbase Solar Designer shows ads.

### Which is updated more often, LSL ECAT or Sunbase Solar Designer?

LSL ECAT ships an update fortnightly, and Sunbase Solar Designer every 2 months. Most recently, LSL ECAT was updated on October 27, 2026 and Sunbase Solar Designer on November 3, 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.*