# Janus Lock vs 3D Snap

The clearest difference is rating: 3D Snap at 3.9 against Janus Lock's 2.3. 3D Snap also leads on ratings volume (582 vs 4) and chart position (#154 vs unranked). Janus Lock's advantage is in-app purchases (none vs 10) and ads (none vs shown). On price, review sentiment and device support there is nothing between them.

Both are free to download. 3D Snap sells 10 in-app purchases, starting at $5.99 per 7 days. Janus Lock asks for nothing beyond the download.

3D Snap holds the better App Store score, 3.9 against 2.3. That said, the two scores are not equally well evidenced: 3D Snap has 582 ratings behind it against 4, so its average is the more settled of the two. Written reviews complicate that: 34% of Janus Lock's written reviews are positive against 31% of 3D Snap's, so the app with the better star average is not the one people write more warmly about.

Janus Lock ships an update every 6 weeks, 3D Snap every 3 weeks. The most recent releases landed on November 2, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | Janus Lock | 3D Snap |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.3 (4 ratings)](https://appshunter.io/ios/app/janus-lock/id1441854153/reviews) | **[3.9 (582 ratings)](https://appshunter.io/ios/app/3d-snap-lidar-room-scanner/id6477467417/reviews)** |
| Number of ratings | 4 | **582** |
| Positive reviews | **34.3% of reviews** | 30.8% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 6 weeks | **Every 3 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Best chart rank | — | **#154** |
| Size | 23 MB | 170 MB |
| Requires iOS | **14** | 18.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Henis Electronic Technology Co., Ltd.](https://appshunter.io/developer/1102336874) | [BPMobile](https://appshunter.io/developer/1085442365) |

## What reviewers say

### Janus Lock

[App page](https://appshunter.io/ios/app/janus-lock/id1441854153)

Manage your smart door locks and access rights directly from your mobile device. Track who unlocks your door and when, and create physical passcodes for easy access. Share and manage keys with friends at a granular level.

**Highlights:** Unlock door remotely, Track unlock history, Create physical passcodes, Share and manage access, Hardware firmware updates

**Features:** macOS Compatibility

**In-app purchases:** none


### 3D Snap

[App page](https://appshunter.io/ios/app/3d-snap-lidar-room-scanner/id6477467417)

**Currently charting:** #154 Top Grossing · Productivity (US App Store)

Transform your iPhone into a powerful floor plan creator and 3D scanner using LiDAR technology. Quickly capture room layouts, measure spaces, and visualize objects in 3D for renovation, interior design, or moving.

**Highlights:** LiDAR-powered room scanning, Instant floor plan generation, 3D object scanning from photos, Accurate AR measurements, Export floor plans and 3D models, Measure walls, areas, and furniture

**Features:** Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $5.99 | per 7 days |
| Premium | $5.99 | per 7 days |
| Premium | $6.99 | per 7 days |
| Premium | $6.99 | per 7 days |
| Premium | $7.99 | per 7 days |
| Premium | $8.99 | per 7 days |
| Premium | $9.99 | per 7 days |
| Premium | $9.99 | per 7 days |
| Premium | $19.99 | per year |
| Premium | $29.99 | per year |

**What reviewers like**

- 🚀 Accurate measurements
- 👍 Easy to use
- 🤩 Helpful for home improvement projects
- 💯 Stunningly realistic 3D models

**What reviewers complain about**

- 🐛 Crashes frequently
- 🤯 Confusing navigation and UI
- 💰 Expensive subscription model
- 🚫 Incompatible with older devices
- 🤔 Inaccurate room scans and measurements

**Reported bugs**

- Walls appear crooked in 3D models
- Furniture obstructs accurate scanning
- Difficulty cancelling subscription

**Requested features**

- Ability to edit scanned rooms
- Option to manually input measurements
- Export functionality for floor plans
- Multi-room support


## Frequently asked questions

### Is Janus Lock free?

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

### Is 3D Snap free?

3D Snap is free to download, with in-app purchases available.

### Which has better reviews, Janus Lock or 3D Snap?

3D Snap is rated higher. Janus Lock averages 2.3 out of 5 from 4 ratings, while 3D Snap averages 3.9 from 582 ratings.

### Do Janus Lock or 3D Snap have ads?

3D Snap shows ads; Janus Lock does not.

### Which is updated more often, Janus Lock or 3D Snap?

Janus Lock ships an update every 6 weeks, and 3D Snap every 3 weeks. Most recently, Janus Lock was updated on November 2, 2026 and 3D Snap on November 8, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*