# Headjack Link vs KIRI Engine

The clearest difference is in-app purchases: Headjack Link at none against KIRI Engine's 17. Headjack Link also leads on iOS requirement (12.1 vs 15.0). KIRI Engine's advantage is update cadence (every 3 weeks vs every 4 months). On price, ads and device support there is nothing between them.

Both are free to download. KIRI Engine sells 17 in-app purchases, starting at $6.99 per month. Headjack Link asks for nothing beyond the download.

Headjack Link ships an update every 4 months, KIRI Engine every 3 weeks. Both last shipped on October 30, 2026.

## The numbers

| Metric | Headjack Link | KIRI Engine |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.4 (1.3K ratings)](https://appshunter.io/ios/app/kiri-engine3d-scanner-and-lidar/id1577127142/reviews)** |
| Number of ratings | — | **1.3K** |
| Positive reviews | — | 62.4% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 88 MB | 135 MB |
| Requires iOS | **12.1** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Purple Pill VR B.V.](https://appshunter.io/developer/1081442210) | [KIRI Innovation (Hongkong) Limited](https://appshunter.io/developer/1757368772) |

## What reviewers say

### Headjack Link

[App page](https://appshunter.io/ios/app/headjack-link/id1571707775)

**Features:** macOS Compatibility

**In-app purchases:** none


### KIRI Engine

[App page](https://appshunter.io/ios/app/kiri-engine3d-scanner-and-lidar/id1577127142)

Easily create high-quality 3D models from photos or videos directly on your phone. Offers advanced scanning technologies for detailed results, with editing and export options for various platforms. Ideal for artists, designers, and 3D printing enthusiasts.

**Highlights:** Photogrammetry 3D scanning, Neural Surface Reconstruction (NSR), 3D Gaussian Splatting, Auto Object Masking, Augmented Reality preview, Multiple export formats (OBJ, STL, GLTF), AI PBR Material Generation (Pro)

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

**In-app purchases (17)**

| Purchase | Price | Billing |
| --- | --- | --- |
| KIRI Pro Monthly Renewal Anniv | $6.99 | per month |
| KIRI Pro Monthly Renewal | $9.99 | per month |
| KIRI Pro Monthly Renewal | $14.99 | per month |
| KIRI Pro Monthly Renewal | $17.99 | per month |
| KIRI Pro Annual Renewal Sale23 | $29.99 | per year |
| KIRI Pro Yearly Renewal Sale25 | $35.99 | per year |
| KIRI Pro Yearly Renewal Sale24 | $35.99 | per year |
| KIRI Pro Yearly Renewal Newbie | $35.99 | per year |
| KIRI Pro Yearly Renewal Return | $47.99 | per year |
| KIRI Pro Yearly Renewal Newbie | $47.99 | per year |
| KIRI Pro Annual Renewal | $49.99 | per year |
| KIRI Pro Annual Renewal | $59.99 | per year |
| KIRI Pro Yearly Renewal | $59.99 | per year |
| KIRI Pro Yearly Renewal | $79.99 | per year |
| KIRI Engine - Single Purchase | $0.99 | one-time |
| KIRI Engine - Single Purchase | $1.99 | one-time |
| KIRI Engine - Single Purchase | $2.99 | one-time |


## Frequently asked questions

### Is Headjack Link free?

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

### Is KIRI Engine free?

KIRI Engine is free to download, with in-app purchases available.

### Do Headjack Link or KIRI Engine have ads?

Neither Headjack Link nor KIRI Engine shows ads.

### Which is updated more often, Headjack Link or KIRI Engine?

Headjack Link ships an update every 4 months, and KIRI Engine every 3 weeks. Most recently, Headjack Link was updated on October 30, 2026 and KIRI Engine on October 30, 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.*