Comparison

Tachyon vs Polycam 3D Scanner & Measuring

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

Head to head
About

Tachyon

Control your camera remotely to start/stop recordings, play back footage in slow motion, and download videos directly to your iOS device. This app enhances your camera's functionality for seamless video capture and management.

Highlights
  • Remote recording control
  • Slow-motion playback
  • Video download to device
  • iOS device as remote
  • Compatible with Tachyon cameras
Features
Read full description

Tachyon iOS App is designed to use with Tachyon cameras. The user can use iOS device as a remote controller to start and stop the recording, to playback in slo-mo, and to download the videos to their devices.

About

Polycam 3D Scanner & Measuring

Create high-quality 3D models, precise LiDAR scans, and immersive 360° images directly from your iPhone or iPad. Edit and export your creations in industry-standard formats, and share them with a global community of creators.

Highlights
  • Create high-quality 3D models from photos
  • Precise LiDAR 3D scanning
  • Generate detailed 3D room models
  • Capture immersive 360° images
  • Edit and measure 3D models on-device
  • Export to industry-standard 3D software
  • Generate 2D floor plans and blueprints
Read full description

Polycam turns a single phone scan into the documents jobs run on: floor plans, as-builts, estimates, roof reports, claims files, measurements, and CAD-ready exports. No tripod. No technician. No two-week wait. WHAT YOU WALK AWAY WITH • Floor plans — 2D and 3D, ready for AutoCAD, SketchUp, and Revit • As-builts — weeks of documentation compressed into minutes • Measurements — every dimension in the room, in the time it takes to cross it • Estimates — priced off real conditions, not guesses • Claims and damage records — dated, dimensioned, defensible • 3D models and point clouds — .obj, .dae, .fbx, .stl, .dxf, .ply, .esx • 360° tours — shareable links for clients and remote stakeholders HOW YOU CAPTURE IT • 3D scanner for fast, accurate interior and structural capture that works without LiDAR • Photogrammetry and Gaussian splats from photos and video • Drone and aerial capture for roofs, exteriors, and whole-site coverage • Measure, annotate, crop, rescale, and label directly on the scan WHERE IT FITS IN YOUR WORKFLOW • Construction documentation and progress tracking • Renovation and design visualization • Insurance, restoration, and damage assessment • Site survey and drone-based mapping • BIM coordination and CAD workflows • Factory layout and equipment documentation WORK FROM ONE TRUTH Share scans and floor plans with clients and teammates by link. Control access with private or public permissions. Use shared libraries so the whole team is looking at the same site. View, edit, and export from any computer on Polycam Web, included free. 34 million scans. More than 10 million people. Over 2 billion square feet captured. Privacy Policy: https://poly.cam/privacy_policy.pdf Terms of Use: https://poly.cam/terms_and_conditions.pdf

Screenshots

Tachyon4 screens
Polycam 3D Scanner & Measuring4 screens

Verdict

The call

The clearest difference is review sentiment: Polycam 3D Scanner & Measuring at 70% against Tachyon's 0%. Polycam 3D Scanner & Measuring also leads on rating (4.6 vs 1.0) and update cadence (weekly vs every 6 weeks). Tachyon's advantage is in-app purchases (none vs 7) and iOS requirement (15.0 vs 18.0). On price, ads 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. Polycam 3D Scanner & Measuring sells 7 in-app purchases, starting at $26.99 per month. Tachyon asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Polycam 3D Scanner & Measuring holds the better App Store score, 4.6 against 1.0. That said, the two scores are not equally well evidenced: Polycam 3D Scanner & Measuring has 44K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 0% of Tachyon's written reviews are positive against 70% of Polycam 3D Scanner & Measuring's.

UpkeepUpdate frequency

Tachyon ships an update every 6 weeks, Polycam 3D Scanner & Measuring weekly. The most recent releases landed on October 24, 2026 and October 26, 2026 respectively.

Scorecard8 real differences · 3 level
Tachyon versus Polycam 3D Scanner & Measuring: the parameters behind the verdict, then further details
ParameterTachyonPolycam 3D Scanner & Measuring
PriceFreeFree
Rating1.0 (1 ratings)4.6 (44K ratings) — better
Positive reviews0.0% of reviews70.4% of reviews — better
Number of ratings144K — better
Update frequencyEvery 6 weeksWeekly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
Best chart rank—#71 — better
DevicesiPhone, iPad, iPodiPhone, iPad, Vision Pro
Requires iOS15.0 — better18.0
Further details — not scored
Size52 MB512 MB
Age rating4+17+
DeveloperChris WhitehousePolycam Inc.

Customer experience

Tachyon

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Polycam 3D Scanner & Measuring

All ratings43,789 ratings
Positive91.5%
Neutral3.0%
Negative5.5%
Written reviews2,726 reviews
Positive70.4%
Neutral5.5%
Negative24.1%

Bugs and requests

Tachyon

Not enough reviews yet to summarise bugs or requests.

Polycam 3D Scanner & Measuring

Reported bugs

4 issues
  • Scans disappearing after processing
  • Inability to save or export scans
  • Inconsistent behavior when exiting the app
  • Inaccurate room dimensions and measurements

Requested features

5 requests
  • Add flash support for better lighting
  • Allow screen rotation for wider scanning angles
  • Improve texture quality and reduce artifacts
  • Provide more detailed feedback during scanning
  • Enable offline scanning without internet connection

In-app purchases

None

Tachyon

No in-app purchases

7 purchases

Polycam 3D Scanner & Measuring

Subscriptions6
  • Polycam Pro Monthly$26.991 Month
  • Polycam Basic$29.991 Month
  • Polycam Pro Monthly$29.991 Month
Show 3 more
  • Polycam Basic Yearly7 Days trial$149.991 Year
  • Polycam Pro Yearly7 Days trial$199.991 Year
  • Polycam Pro Annual7 Days trial$239.991 Year
One-time1
  • Polycam Pro$499.99

Questions

Is Tachyon free?
Tachyon is free to download, with no in-app purchases.
Is Polycam 3D Scanner & Measuring free?
Polycam 3D Scanner & Measuring is free to download, with in-app purchases available.
Which has better reviews, Tachyon or Polycam 3D Scanner & Measuring?
Polycam 3D Scanner & Measuring is rated higher. Tachyon averages 1.0 out of 5 from 1 ratings, while Polycam 3D Scanner & Measuring averages 4.6 from 44K ratings.
Do Tachyon or Polycam 3D Scanner & Measuring have ads?
Neither Tachyon nor Polycam 3D Scanner & Measuring shows ads.
Which is updated more often, Tachyon or Polycam 3D Scanner & Measuring?
Tachyon ships an update every 6 weeks, and Polycam 3D Scanner & Measuring weekly. Most recently, Tachyon was updated on October 24, 2026 and Polycam 3D Scanner & Measuring on October 26, 2026.

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