Comparison

Janus Lock vs 3D Snap

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Janus Lock

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
Read full description

Janus Lock is the next-generation smart door lock system which enables you to manage your locks and access rights all on your mobile phone. Key features: - Unlock the door with this app, for sure! - History tracking: Who and when unlocks my lock?! - Create and manage the physical 4-key passcodes so you don't even need to pull out your phone. - Share any keys or passcodes to your friends and manage them in a granular level. - Support hardware firmware update to unlock more new features in the future!

About

3D Snap

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
Read full description

FLOOR PLAN CREATOR & ROOM PLANNER Turn your iPhone into a floor plan creator with 3D Snap. Scan rooms, create floor plans, take measurements, and plan furniture layouts—all in one app. Whether you’re planning a home renovation, moving to a new apartment, or checking if furniture will fit, 3D Snap helps you map out your home and create a practical room plan. Use LiDAR on compatible devices to scan your space and generate 2D floor plans and 3D room models. WHAT CAN YOU DO WITH A FLOOR PLAN? • Plan a renovation: Map rooms and measure areas before choosing flooring, paint, or other materials. • Prepare for a move: Document your new apartment and see how much space you have. • Check furniture fit: Measure rooms and furniture to see whether a sofa, wardrobe, or table will fit. • Plan room layouts: Explore furniture arrangements and make better use of available space. • Share room plans: Send floor plans and measurements to contractors, designers, or clients. SCAN ROOMS & CREATE FLOOR PLANS Turn LiDAR room scans into practical floor plans with 3D Snap. • Scan rooms: Capture room layouts using LiDAR on compatible devices. • Create floor plans: Visualize your space in 2D or 3D. • Review room dimensions: Use room measurements for renovation and furniture planning. • Prepare for your next project: Use your room plan when moving, renovating, or sharing layouts with contractors and designers. MEASURE & VISUALIZE YOUR SPACE • Measure rooms: Get wall dimensions and calculate room areas to estimate how much for flooring or paint you’ll need. • Visualize room design: Experiment with wall and floor colors and textures. • Explore furniture layouts: Try different arrangements before you buy, rearrange, or renovate. • Export floor plans: Share plans as PDFs or image files, and export 3D models in supported formats. AR RULER & LEVEL TOOLS • Measure objects and surfaces: Use the AR ruler for everyday measuring tasks. • Check alignment: Level artwork, shelves, and other items around your home. 3D SCANNER & 3D MODEL MAKER Scan individual objects and create 3D models with 3D Snap. Turn scans of furniture and other items into 3D references for space planning, object documentation, or custom projects. Use LiDAR and AI-powered scanning to capture objects in 3D. 3D SNAP PRO Subscribe to 3D Snap PRO to access all features. Your subscription will be charged to your Apple Account upon purchase confirmation. Subscriptions automatically renew 24 hours before expiration. Manage your subscription in your App Store account settings. Terms of Use: http://bpmob.com/3d_scan_ios/terms/en/ Privacy Policy: http://bpmob.com/3d_scan_ios/privacy/en/

Screenshots

Janus Lock4 screens
3D Snap4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard8 real differences · 3 level
Janus Lock versus 3D Snap: the parameters behind the verdict, then further details
ParameterJanus Lock3D Snap
PriceFreeFree
Rating2.3 (4 ratings)3.9 (582 ratings) — better
Positive reviews34.3% of reviews — better30.9% of reviews
Number of ratings4582 — better
Update frequencyEvery 6 weeksEvery 3 weeks — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
Best chart rank—#154 — better
DevicesiPhone, iPodiPhone, iPad
Requires iOS14 — better18.0
Further details — not scored
Size23 MB170 MB
Age rating4+4+
DeveloperHenis Electronic Technology Co., Ltd.BPMobile

Customer experience

Janus Lock

All ratings4 ratings
Positive25.0%
Neutral0.0%
Negative75.0%
Written reviews35 reviews
Positive34.3%
Neutral8.6%
Negative57.1%

3D Snap

All ratings582 ratings
Positive72.2%
Neutral1.7%
Negative26.1%
Written reviews540 reviews
Positive30.9%
Neutral6.3%
Negative62.8%

Bugs and requests

Janus Lock

Not enough reviews yet to summarise bugs or requests.

3D Snap

Reported bugs

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

Requested features

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

In-app purchases

None

Janus Lock

No in-app purchases

10 purchases

3D Snap

Subscriptions10
  • Premium3 Days trial$5.997 Days
  • Premium$5.997 Days
  • Premium$6.997 Days
Show 7 more
  • Premium3 Days trial$6.997 Days
  • Premium3 Days trial$7.997 Days
  • Premium3 Days trial$8.997 Days
  • Premium$9.997 Days
  • Premium3 Days trial$9.997 Days
  • Premium$19.991 Year
  • Premium$29.991 Year

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.

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