# Optical Surface Recognition vs BatchOptimize

The clearest difference is in-app purchases: Optical Surface Recognition at none against BatchOptimize's 6. Optical Surface Recognition also leads on iOS requirement (12.0 vs 16.0). On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. BatchOptimize sells 6 one-off in-app purchases. Optical Surface Recognition asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Optical Surface Recognition against 5.0 for BatchOptimize. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on October 7, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Optical Surface Recognition | BatchOptimize |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/optical-surface-recognition/id1480828202/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/batchoptimize-compress-media/id6802534677/reviews) |
| Number of ratings | 1 | 1 |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Monetization | **Free** | Free with in-app purchases |
| Size | 17 MB | 14 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Engineering Director, Inc.](https://appshunter.io/developer/1480828201) | [Lei Feng](https://appshunter.io/developer/1041447953) |

## 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


### BatchOptimize

[App page](https://appshunter.io/ios/app/batchoptimize-compress-media/id6802534677)

This app offers high-performance media and document compression for Apple devices. It can reduce file sizes by up to 90% while preserving quality, supporting various image, video, PDF, and audio formats. Automation features allow for quick processing and integration with other applications.

**Highlights:** Compress images, videos, and PDFs, Convert between multiple formats (WebP, AVIF, HEIC, MP4, MOV, GIF, PDF), Resize images and videos, Add text watermarks, Extract audio from videos, Automate tasks with Apple Shortcuts, Merge images into PDFs

**Features:** Vision Pro support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| All Features Upgrade Promo 50% OFF | $4.99 | one-time |
| Images & WebP Pack | $4.99 | one-time |
| PDF & Documents Pack | $4.99 | one-time |
| Video Optimizer Pack | $4.99 | one-time |
| Audio Transcoder Pack | $4.99 | one-time |
| All Features Bundle (50% Off) | $9.99 | one-time |


## Frequently asked questions

### Is Optical Surface Recognition free?

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

### Is BatchOptimize free?

BatchOptimize is free to download, with in-app purchases available.

### Which has better reviews, Optical Surface Recognition or BatchOptimize?

Optical Surface Recognition and BatchOptimize are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do Optical Surface Recognition or BatchOptimize have ads?

Neither Optical Surface Recognition nor BatchOptimize shows ads.

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

Optical Surface Recognition ships an update every 2 weeks, and BatchOptimize every 2 weeks. Most recently, Optical Surface Recognition was updated on October 7, 2026 and BatchOptimize on October 5, 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.*