# Sentrylink vs Spatial Lens

The clearest difference is update cadence: Spatial Lens at every 2 days against Sentrylink's every 16 months. Sentrylink's advantage is iOS requirement (12.0 vs 15.1). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Sentrylink ships an update every 16 months, Spatial Lens every 2 days. The most recent releases landed on October 3, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Sentrylink | Spatial Lens |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.6 (5 ratings)](https://appshunter.io/ios/app/spatial-lens-real-horizons/id6762635917/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 16 months | **Every 2 days** |
| Monetization | Free | Free |
| Size | 92 MB | 45 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Langtao Digital Co., Ltd.](https://appshunter.io/developer/1465690696) | [Hussne Mubarak](https://appshunter.io/developer/1869130453) |

## What reviewers say

### Sentrylink

[App page](https://appshunter.io/ios/app/sentrylink/id1459488074)

This app allows you to remotely open your front door, view live video and audio of visitors, and share temporary door codes. You can also review unlock logs and communicate with guests via video call.

**Highlights:** Remote door unlocking, Live video and audio feed, Shareable temporary door codes, Unlock log history, Video calls with visitors

**Features:** macOS Compatibility

**In-app purchases:** none


### Spatial Lens

[App page](https://appshunter.io/ios/app/spatial-lens-real-horizons/id6762635917)

Transform real-world interiors into detailed 3D models for virtual tours, digital twins, or spatial content. This capture assistant provides real-time guidance to ensure complete coverage and high-quality scans.

**Highlights:** Guided capture for complete coverage, Real-time feedback for better scans, Optimized frame capture for 3D reconstruction, Wide-angle mode for tight spaces, Export clean datasets for processing, Easy to use

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

**In-app purchases:** none


## Frequently asked questions

### Is Sentrylink free?

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

### Is Spatial Lens free?

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

### Do Sentrylink or Spatial Lens have ads?

Neither Sentrylink nor Spatial Lens shows ads.

### Which is updated more often, Sentrylink or Spatial Lens?

Sentrylink ships an update every 16 months, and Spatial Lens every 2 days. Most recently, Sentrylink was updated on October 3, 2026 and Spatial Lens on October 8, 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.*