# Stray Scanner vs ēVision

The clearest difference is review sentiment: ēVision at 100% against Stray Scanner's 75%. ēVision also leads on update cadence (every 6 weeks vs every 6 months). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Stray Scanner ships an update every 6 months, ēVision every 6 weeks. The most recent releases landed on October 13, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Stray Scanner | ēVision |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/stray-scanner/id1557051662/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 75.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 6 weeks** |
| Monetization | Free | Free |
| Size | 1 MB | 62 MB |
| Requires iOS | 18.6 | 18.6 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Kenneth Blomqvist](https://appshunter.io/developer/1557051664) | [Efestos Hub](https://appshunter.io/developer/1890033328) |

## What reviewers say

### Stray Scanner

[App page](https://appshunter.io/ios/app/stray-scanner/id1557051662)

Capture color, depth, and IMU data using your device's LiDAR sensor. Export these datasets to your computer for machine learning and dense mapping projects. Streamline the process of collecting RGB-D data without complex calibration.

**Highlights:** Record color images, Capture depth frames, Export IMU measurements, Estimate camera position, Access camera calibration matrix, Transfer datasets to desktop

**In-app purchases:** none


### ēVision

[App page](https://appshunter.io/ios/app/evision/id6761505247)

This tool uses AI and computer vision to identify, assess, and measure structural steel elements on-site. It helps generate data for reuse, streamlining workflows for engineers and contractors in the construction industry.

**Highlights:** AI-powered structural element identification, Real-time measurement and quantification, Condition and defect assessment, Generation of reuse-ready digital data, Seamless data syncing with ēfestos.ai platform

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Stray Scanner free?

Stray Scanner is free to download, with no in-app purchases.

### Is ēVision free?

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

### Do Stray Scanner or ēVision have ads?

Neither Stray Scanner nor ēVision shows ads.

### Which is updated more often, Stray Scanner or ēVision?

Stray Scanner ships an update every 6 months, and ēVision every 6 weeks. Most recently, Stray Scanner was updated on October 13, 2026 and ēVision on October 8, 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.*