# Sunbase Solar Designer vs RepX

The clearest difference is update cadence: Sunbase Solar Designer at every 2 months against RepX's every 11 months. Sunbase Solar Designer also leads on iOS requirement (12.0 vs 26.0). 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.

Sunbase Solar Designer ships an update every 2 months, RepX every 11 months. The most recent releases landed on October 6, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Sunbase Solar Designer | RepX |
| --- | --- | --- |
| 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 | **Every 2 months** | Every 11 months |
| Monetization | Free | — |
| Size | 94 MB | 17 MB |
| Requires iOS | **12.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Jared Dubin](https://appshunter.io/developer/1336351914) | [The Simple App Inc.](https://appshunter.io/developer/1742077445) |

## What reviewers say

### 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


### RepX

[App page](https://appshunter.io/ios/app/repx/id6739274368)

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

**In-app purchases:** none


## Frequently asked questions

### Is Sunbase Solar Designer free?

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

### Is RepX free?

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

### Do Sunbase Solar Designer or RepX have ads?

Neither Sunbase Solar Designer nor RepX shows ads.

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

Sunbase Solar Designer ships an update every 2 months, and RepX every 11 months. Most recently, Sunbase Solar Designer was updated on October 6, 2026 and RepX 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.*