# Sitelink3D 2 Support Desk vs TopLayout

The clearest difference is update cadence: TopLayout at every 3 months against Sitelink3D 2 Support Desk's every 13 months. Sitelink3D 2 Support Desk's advantage is iOS requirement (10.0 vs 14.0). 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.

Sitelink3D 2 Support Desk ships an update every 13 months, TopLayout every 3 months. The most recent releases landed on November 3, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Sitelink3D 2 Support Desk | TopLayout |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 3 months** |
| Size | 50 MB | 47 MB |
| Requires iOS | **10.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Topcon Positioning Systems, Inc.](https://appshunter.io/developer/667040500) | [TOPCON CORPORATION](https://appshunter.io/developer/1518903564) |

## What reviewers say

### Sitelink3D 2 Support Desk

[App page](https://appshunter.io/ios/app/sitelink3d-2-support-desk/id1480749268)

**Features:** macOS Compatibility

**In-app purchases:** none


### TopLayout

[App page](https://appshunter.io/ios/app/toplayout/id1518903562)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Sitelink3D 2 Support Desk free?

Sitelink3D 2 Support Desk is free to download, with no in-app purchases.

### Is TopLayout free?

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

### Do Sitelink3D 2 Support Desk or TopLayout have ads?

Neither Sitelink3D 2 Support Desk nor TopLayout shows ads.

### Which is updated more often, Sitelink3D 2 Support Desk or TopLayout?

Sitelink3D 2 Support Desk ships an update every 13 months, and TopLayout every 3 months. Most recently, Sitelink3D 2 Support Desk was updated on November 3, 2026 and TopLayout on October 29, 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.*