# Tachyon vs Polycam 3D Scanner & Measuring

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.

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.

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.

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.

## The numbers

| Metric | Tachyon | Polycam 3D Scanner & Measuring |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/tachyon/id1477577495/reviews) | **[4.6 (44K ratings)](https://appshunter.io/ios/app/polycam-3d-scanner-and-measuring/id1532482376/reviews)** |
| Number of ratings | 1 | **44K** |
| Positive reviews | 0.0% of reviews | **70.4% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Weekly** |
| Monetization | **Free** | Free with in-app purchases |
| Best chart rank | — | **#68** |
| Size | 52 MB | 512 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Vision Pro |
| Age rating | 4+ | 17+ |
| Developer | [Chris Whitehouse](https://appshunter.io/developer/1481582836) | [Polycam Inc.](https://appshunter.io/developer/1532482378) |

## What reviewers say

### Tachyon

[App page](https://appshunter.io/ios/app/tachyon/id1477577495)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Polycam 3D Scanner & Measuring

[App page](https://appshunter.io/ios/app/polycam-3d-scanner-and-measuring/id1532482376)

**Currently charting:** #68 Top Grossing · Photo & Video, #166 Top Free · Photo & Video (US App Store)

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Polycam Pro Monthly | $26.99 | per month |
| Polycam Basic | $29.99 | per month |
| Polycam Pro Monthly | $29.99 | per month |
| Polycam Basic Yearly | $149.99 | per year |
| Polycam Pro Yearly | $199.99 | per year |
| Polycam Pro Annual | $239.99 | per year |
| Polycam Pro | $499.99 | one-time |

**What reviewers like**

- 🚀 Fast and efficient
- 👍 Easy to use
- 🤩 Impressive results
- 🎨 Great for 3D modeling and scanning
- 💻 Useful for professional applications

**What reviewers complain about**

- 🐛 Buggy and crashes frequently
- 💰 Expensive subscription model
- 🔍 Lack of instructions and user guidance
- 🔍 Unclear feature limitations in free version
- 🔍 Inconsistent performance across devices

**Reported bugs**

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

**Requested features**

- 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


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