# OSpectrometer vs BatchOptimize

The clearest difference is rating: BatchOptimize at 5.0 against OSpectrometer's 2.0. BatchOptimize also leads on update cadence (weekly vs every 2 weeks). OSpectrometer's advantage is ratings volume (4 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. OSpectrometer sells 2 in-app purchases, starting at $2.99 per month and BatchOptimize sells 6 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

BatchOptimize holds the better App Store score, 5.0 against 2.0. Both are backed by a comparable volume of ratings — 4 and 1 respectively.

OSpectrometer ships an update every 2 weeks, BatchOptimize weekly. The most recent releases landed on September 10, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | OSpectrometer | BatchOptimize |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.0 (4 ratings)](https://appshunter.io/ios/app/ospectrometer/id6446124449/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/batchoptimize-photo-video-pdf/id6802534677/reviews)** |
| Number of ratings | **4** | 1 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Weekly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 71 MB | 14 MB |
| Requires iOS | **15.1** | 16.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [NANO ELECTRONICS RESEARCH MUHENDISLIK ARASTIRMA GELISTIRME LIMITED SIRKETI](https://appshunter.io/developer/1674573382) | [Lei Feng](https://appshunter.io/developer/1041447953) |

## What reviewers say

### OSpectrometer

[App page](https://appshunter.io/ios/app/ospectrometer/id6446124449)

This app uses your device's camera and screen to perform basic optical spectroscopy. Analyze the visible light spectrum of objects, map light wavelengths to RGB values, and save or share your findings. It functions offline without external hardware.

**Highlights:** Visible light spectrum analysis, RGB color value mapping, Wavelength selection and scanning, Front camera reflection sensing, Save and share results, Offline functionality

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| month | $2.99 | per month |
| year | $9.99 | per year |


### BatchOptimize

[App page](https://appshunter.io/ios/app/batchoptimize-photo-video-pdf/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 OSpectrometer free?

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

### Is BatchOptimize free?

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

### Which has better reviews, OSpectrometer or BatchOptimize?

BatchOptimize is rated higher. OSpectrometer averages 2.0 out of 5 from 4 ratings, while BatchOptimize averages 5.0 from 1 ratings.

### Do OSpectrometer or BatchOptimize have ads?

Neither OSpectrometer nor BatchOptimize shows ads.

### Which is updated more often, OSpectrometer or BatchOptimize?

OSpectrometer ships an update every 2 weeks, and BatchOptimize weekly. Most recently, OSpectrometer was updated on September 10, 2026 and BatchOptimize on September 18, 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.*