# SunSim Building vs EV Station Load Sizing

The clearest difference is update cadence: SunSim Building at every 3 weeks against EV Station Load Sizing's every 2 months. SunSim Building also leads on iOS requirement (13.0 vs 16.0). On price, ads, in-app purchases 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 and EV Station Load Sizing sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

SunSim Building ships an update every 3 weeks, EV Station Load Sizing every 2 months. The most recent releases landed on October 24, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | SunSim Building | EV Station Load Sizing |
| --- | --- | --- |
| 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 | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 36 MB | 9 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) | [HD YAPIMCILIK VE TEKNOLOJI ITHALAT IHRACAT TICARET LIMITED SIRKETI](https://appshunter.io/developer/1871741424) |

## 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 |


### EV Station Load Sizing

[App page](https://appshunter.io/ios/app/ev-station-load-sizing/id6796341068)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| EV Station Pro — Monthly | $2.99 | per month |
| EV Station Pro — Yearly | $14.99 | per year |
| EV Station Pro — Lifetime | $29.99 | one-time |


## Frequently asked questions

### Is SunSim Building free?

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

### Is EV Station Load Sizing free?

EV Station Load Sizing is free to download, with in-app purchases available.

### Do SunSim Building or EV Station Load Sizing have ads?

Neither SunSim Building nor EV Station Load Sizing shows ads.

### Which is updated more often, SunSim Building or EV Station Load Sizing?

SunSim Building ships an update every 3 weeks, and EV Station Load Sizing every 2 months. Most recently, SunSim Building was updated on October 24, 2026 and EV Station Load Sizing on October 9, 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.*