# SunSim Building vs Wormhole Backup

The clearest difference is in-app purchases: Wormhole Backup at none against SunSim Building's 3. SunSim Building's advantage is iOS requirement (13.0 vs 16.0). On price, ads and device support there is nothing between them.

Both are free to download. SunSim Building sells 3 in-app purchases, starting at $4.99 per month. Wormhole Backup asks for nothing beyond the download.

## The numbers

| Metric | SunSim Building | Wormhole Backup |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (3 ratings)](https://appshunter.io/ios/app/sunsim-building-sun-tracker/id6479755082/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 60.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | — |
| Monetization | Free with in-app purchases | — |
| Size | 36 MB | 1 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [立娜 王](https://appshunter.io/developer/1761096632) | [素朴网联(珠海)科技有限公司](https://appshunter.io/developer/1486062138) |

## What reviewers say

### SunSim Building

[App page](https://appshunter.io/ios/app/sunsim-building-sun-tracker/id6479755082)

This tool helps analyze home sun exposure using 3D modeling and solar trajectory simulation. It visualizes sunlight data, calculates duration, and generates reports for property evaluation. Features include floor plan and map modeling, unit layout simulation, and window view analysis.

**Highlights:** 3D modeling from floor plans or maps, Solar trajectory simulation, Sunlight duration statistics, 3D heatmap display, Window view simulation, Report generation (PDF, PNG, CSV)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $4.99 | per month |
| Annual Subscription | $12.99 | per year |
| Permanent membership | $24.99 | one-time |


### Wormhole Backup

[App page](https://appshunter.io/ios/app/wormhole-backup/id6786529079)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SunSim Building free?

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

### Is Wormhole Backup free?

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

### Do SunSim Building or Wormhole Backup have ads?

Neither SunSim Building nor Wormhole Backup shows ads.

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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.*