# Light Detector vs OOrion

The clearest difference is update cadence: OOrion at every 2 weeks against Light Detector's every 12 months. OOrion also leads on ratings volume (31 vs 8). Light Detector's advantage is rating (4.5 vs 4.1) and iOS requirement (7.0 vs 17.2). On price, review sentiment, ads and in-app purchases there is nothing between them.

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

Light Detector holds the better App Store score, 4.5 against 4.1. Both are backed by a comparable volume of ratings — 8 and 31 respectively. Written reviews point the same way: 82% of Light Detector's written reviews are positive against 79% of OOrion's.

Light Detector ships an update every 12 months, OOrion every 2 weeks. The most recent releases landed on October 17, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Light Detector | OOrion |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (8 ratings)](https://appshunter.io/ios/app/light-detector/id420929143/reviews)** | [4.1 (31 ratings)](https://appshunter.io/ios/app/oorion/id1567957213/reviews) |
| Number of ratings | 8 | **31** |
| Positive reviews | **81.6% of reviews** | 78.6% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 2 weeks** |
| Monetization | Free | Free |
| Size | 1 MB | 388 MB |
| Requires iOS | **7.0** | 17.2 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Retina Italia Onlus](https://appshunter.io/developer/1450163371) | [OOrion](https://appshunter.io/developer/1567957215) |

## What reviewers say

### Light Detector

[App page](https://appshunter.io/ios/app/light-detector/id420929143)

This utility app converts light intensity into sound, allowing users to perceive their surroundings through audio cues. Point your device's camera at any light source to hear variations in pitch based on brightness. It's designed to assist users, particularly those who are blind, in navigating and understanding their environment.

**Highlights:** Converts light to sound, Adjusts sound pitch by light intensity, Assists visually impaired users, Easy to use camera interface, Portable environmental awareness tool

**Features:** macOS Compatibility

**In-app purchases:** none


### OOrion

[App page](https://appshunter.io/ios/app/oorion/id1567957213)

This app uses your smartphone's camera and AI to help visually impaired individuals identify and locate objects and text in their surroundings. It can find dropped items, specific products, or even doors and names on intercoms, and allows for custom item tagging. It is compatible with VoiceOver and Siri.

**Highlights:** Object and text identification, Location assistance, Custom item tagging, Offline functionality, VoiceOver and Siri compatibility

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Light Detector free?

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

### Is OOrion free?

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

### Which has better reviews, Light Detector or OOrion?

Light Detector is rated higher. Light Detector averages 4.5 out of 5 from 8 ratings, while OOrion averages 4.1 from 31 ratings.

### Do Light Detector or OOrion have ads?

Neither Light Detector nor OOrion shows ads.

### Which is updated more often, Light Detector or OOrion?

Light Detector ships an update every 12 months, and OOrion every 2 weeks. Most recently, Light Detector was updated on October 17, 2026 and OOrion on October 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.*