# Optical Surface Recognition vs Mileseey Optics

The clearest difference is update cadence: Optical Surface Recognition at every 2 weeks against Mileseey Optics's every 10 months. Optical Surface Recognition also leads on iOS requirement (12.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

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

Optical Surface Recognition ships an update every 2 weeks, Mileseey Optics every 10 months. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Optical Surface Recognition | Mileseey Optics |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/optical-surface-recognition/id1480828202/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 10 months |
| Monetization | Free | — |
| Size | 17 MB | 184 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Engineering Director, Inc.](https://appshunter.io/developer/1480828201) | [SHENZHEN MILESEEY TECHNOLOGY CO.LTD](https://appshunter.io/developer/1563678294) |

## What reviewers say

### Optical Surface Recognition

[App page](https://appshunter.io/ios/app/optical-surface-recognition/id1480828202)

This utility app uses computer vision to scan surfaces for signs of corrosion on various metal types. It allows users to capture photos and record videos of detected corrosion, saving them with a proprietary score.

**Highlights:** Detects corrosion on various metal surfaces, Scans flat metal, nails, bolts, signs, poles, grates, Captures photos with corrosion score, Records videos with corrosion score, Saves media to device photo roll

**Features:** macOS Compatibility

**In-app purchases:** none


### Mileseey Optics

[App page](https://appshunter.io/ios/app/mileseey-optics/id6743624378)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Optical Surface Recognition free?

Optical Surface Recognition is free to download, with no in-app purchases.

### Is Mileseey Optics free?

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

### Do Optical Surface Recognition or Mileseey Optics have ads?

Neither Optical Surface Recognition nor Mileseey Optics shows ads.

### Which is updated more often, Optical Surface Recognition or Mileseey Optics?

Optical Surface Recognition ships an update every 2 weeks, and Mileseey Optics every 10 months. Most recently, Optical Surface Recognition was updated on November 3, 2026 and Mileseey Optics on October 31, 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.*