Comparison

Light Detector vs OOrion

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

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
Read full description

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.

About

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.

Highlights
  • Object and text identification
  • Location assistance
  • Custom item tagging
  • Offline functionality
  • VoiceOver and Siri compatibility
Features
Read full description

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

Light Detector2 screens
OOrion4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard4 real differences · 6 level
Light Detector versus OOrion: the parameters behind the verdict, then further details
ParameterLight DetectorOOrion
PriceFreeFree
Rating4.5 (8 ratings) — better4.1 (31 ratings)
Positive reviews81.6% of reviews — better78.6% of reviews
Number of ratings831 — better
Update frequencyEvery 12 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPod — betteriPhone
Requires iOS7.0 — better17.2
Further details — not scored
Size1 MB388 MB
Age rating4+4+
DeveloperRetina Italia OnlusOOrion

Customer experience

Light Detector

All ratings8 ratings
Positive87.5%
Neutral0.0%
Negative12.5%
Written reviews38 reviews
Positive81.6%
Neutral13.2%
Negative5.3%

OOrion

All ratings31 ratings
Positive74.2%
Neutral19.4%
Negative6.5%
Written reviews28 reviews
Positive78.6%
Neutral14.3%
Negative7.1%

In-app purchases

None

Light Detector

No in-app purchases

None

OOrion

No in-app purchases

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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