Light Detector vs Visionauta
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.
Visionauta
This AI-powered assistant helps blind and low-vision users navigate their environment. It can read text aloud, identify currency, locate objects, and describe surroundings through voice interaction. Designed with accessibility at its core, it integrates seamlessly with VoiceOver.
- Real-time AI conversation
- Read text aloud (offline)
- Identify banknotes
- Find lost objects
- Electronic magnifier
- Describe scenes
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Visionauta is your portable visual assistant. Point your iPhone's camera to read text aloud, identify banknotes, find lost objects, or simply ask questions about the world around you. Built from the ground up for blind and low-vision users, with a free tier and an optional Visionauta Plus subscription. No Visionauta account is required to subscribe. REAL-TIME CONVERSATION Talk to an AI by voice, naturally and continuously, while it describes your surroundings and answers your questions instantly — as if a sighted assistant were right beside you. WHAT YOU CAN DO • Read any text aloud, even offline • Recognize banknotes in several currencies (Brazilian Real, US Dollar, Euro, Mexican Peso, Japanese Yen, Canadian and Australian Dollar) • Find lost objects with voice commands • Electronic magnifier with high-contrast modes • Ask the AI assistant to describe scenes and answer questions IN 39 LANGUAGES Portuguese, English, Spanish, French, Korean, German, Italian, Japanese, Arabic, Russian, Simplified Chinese, Turkish, Vietnamese, Hindi, Indonesian, Bangla, Czech, Greek, Estonian, Persian, Finnish, Hebrew, Hungarian, Icelandic, Lithuanian, Marathi, Dutch, Polish, Romanian, Slovak, Slovenian, Swedish, Swahili, Tamil, Telugu, Thai, Ukrainian, Urdu, and Cantonese. The interface, AI, commands, OCR and online voices adapt to your language. The on-device Natural Voice remains available in the five languages supported by its model. BUILT FOR ACCESSIBILITY Fully integrated with VoiceOver and the iPhone's accessibility features, so every function is reachable by touch and voice. Visionauta was created by Jonathan Santos, a blind software engineer who worked at Google and Samsung, with one goal: to bring more independence to people with visual impairments. The free tier has no ads; Visionauta Plus is available as an optional in-app subscription. Terms of Use: https://www.tensorial.com.br/visionauta/termos-de-uso/en Apple Standard EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is rating: Visionauta at 5.0 against Light Detector's 4.5. Visionauta also leads on update cadence (every 3 days vs every 12 months) and review sentiment (100% vs 82%). Light Detector's advantage is iOS requirement (7.0 vs 17.2). On price, ratings volume, 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.
Visionauta holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 8 and 5 respectively. Written reviews point the same way: 82% of Light Detector's written reviews are positive against 100% of Visionauta's.
Light Detector ships an update every 12 months, Visionauta every 3 days. The most recent releases landed on October 17, 2026 and October 8, 2026 respectively.
| Parameter | Light Detector | Visionauta |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (8 ratings) | 5.0 (5 ratings) — better |
| Positive reviews | 81.6% of reviews | 100.0% of reviews — better |
| Number of ratings | 8 — better | 5 |
| Update frequency | Every 12 months | Every 3 days — 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 | 108 MB |
| Age rating | 4+ | 4+ |
| Developer | Retina Italia Onlus | Jonathan Santos |
Customer experience
Light Detector
Visionauta
In-app purchases
Light Detector
No in-app purchases
Visionauta
No in-app purchases








