Light Detector vs OOrion
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Light Detector
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.
- Converts light to sound
- Adjusts sound pitch by light intensity
- Assists visually impaired users
- Easy to use camera interface
- Portable environmental awareness tool
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Have you ever listened to light? With Light Detector, now you can! Light Detector transforms any natural or artificial light source it encounters into sound. Light Detector is easy to use! Just run the application and point your iPhone camera in any direction. You will hear a higher or lower sound depending on the intensity of the light. If you are blind, Light Detector helps you to be more independent in many daily activities. At home, point your iPhone towards the ceiling to understand where the light fixtures are and whether they are switched on. In a room, move the device along the wall to check if there is a window and where it is. You can find out whether the shades are drawn by moving the device up and down. Bring Light Detector with you to discover what is around you at the speed of light.
OOrion
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.
- Object and text identification
- Location assistance
- Custom item tagging
- Offline functionality
- VoiceOver and Siri compatibility
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Discover OOrion, the smart vision assistant that helps you identify, locate and understand the world around you with great speed and simplicity. Whether you need to find keys dropped on the floor, locate a product in your closet or fridge, spot power outlets in a hotel room, identify the right door on the street or recognize a name on an intercom, OOrion is here to assist you. It can also alert you when an obstacle is in your path and provide ultra low latency scene descriptions for greater awareness of your surroundings. For even more convenience, OOrion can be used completely hands free and with your phone locked as we are officially compatible with Meta AI Glasses. OOrion includes powerful on device AI models that run offline, meaning the app does not necessarily require an internet connection to operate. You can also add your own personal items for quick retrieval whenever you need them. OOrion is fully compatible with the VoiceOver screen reader and Siri. Are you a venue open to the public? Become an OOrion partner and make your establishment accessible to everyone. For questions or feedback, feel free to contact us at contact@oorion.fr
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Light Detector | OOrion |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (8 ratings) — better | 4.1 (31 ratings) |
| Positive reviews | 81.6% of reviews — better | 78.6% of reviews |
| Number of ratings | 8 | 31 — better |
| Update frequency | Every 12 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 7.0 — better | 17.2 |
| Further details — not scored | ||
| Size | 1 MB | 388 MB |
| Age rating | 4+ | 4+ |
| Developer | Retina Italia Onlus | OOrion |
Customer experience
Light Detector
OOrion
In-app purchases
Light Detector
No in-app purchases
OOrion
No in-app purchases









