Neurokõne vs Hear the Light
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Neurokõne
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Tartu Ülikooli keeletehnoloogide arendatud eestikeelne kõnesüntees. Valida saab 10 erineva kõneleja vahel ning kõne kiirust on võimalik reguleerida. Meie hääli saab kasutada ka tekstelemendi lugejana, valides seadetes neist ühe vaikimisi eestikeelseks hääleks. Süntesaatoriks on kasutatud tehisnärvivõrkudel põhinevat mudelit, mis on treenitud eestikeelsetel uudiste ja ilukirjanduse korpustel. Meie kõnesüntees on saadaval ka veebilehel neurokone.ee --- Estonian text-to-speech synthesis developed by the NLP research group at the University of Tartu. There are 10 speakers to choose from and the speech tempo can be adjusted. Any voice can also be used in Speak Selection when set as the default Estonian voice on the device. Our engine is based on a neural network trained on Estonian news and literature corpora. Our text-to-speech service is also available at neurokone.ee
Hear the Light
This app transforms light into sound, enabling users to "hear" brightness and locate light sources. It's designed for individuals with vision loss, offering features like color recognition and vibration feedback.
- Light to sound conversion
- Detects small indicator lights
- Fast response time
- Vibration feedback
- Color recognition
- Adjustable sensitivity
- VoiceOver accessibility
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Hear the Light turns light into sound, so you can "hear" where brightness is around you. It was designed from the ground up for people with vision loss. Point your device's back camera in any direction and listen to a tone that rises as the light gets stronger. This makes it easy to find a window, check whether a lamp is on, or tell if a device has an indicator light lit. What makes it stand out: It detects even very small device lights — such as the LED on a router, a TV on standby, or a charger. Of all the apps of this kind we have tested, it is the only one that reliably picks them up. For very faint lights, the room should be dark so they stand out from any other lighting. Extremely fast response: the tone changes instantly as you move the device, noticeably faster than other similar apps. Features: Vibration feedback with variable intensity, independent of sound: use sound, vibration, or both together. Ideal if you have trouble hearing. (Vibration requires an iPhone.) Colour recognition: hear the basic colour of a small light, for example red, green or blue. It is a helpful guide, with best results in a dark room, close to the light. Two sound modes: continuous tone or pulses. Three sensitivity levels, affecting both the sound and the vibration. Light intensity shown in lux (estimate), spoken aloud with a single tap. Built-in user guide. Fully accessible with VoiceOver. Two languages, Greek and English, adapting automatically to your device's language. Privacy first: It does not collect any personal data. No internet connection required. No advertising, no tracking. The camera is used only to measure light — it does not take or store photos. Note: the lux reading and the colour recognition are estimates based on the device's camera and may not always be exact.
Screenshots
Verdict
The clearest difference is update cadence: Hear the Light at every 3 days against Neurokõne's every 2 weeks. Neurokõne's advantage is iOS requirement (16.0 vs 18.6). On price, ads, in-app purchases and device support 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.
Neurokõne ships an update every 2 weeks, Hear the Light every 3 days. The most recent releases landed on November 4, 2026 and October 31, 2026 respectively.
| Parameter | Neurokõne | Hear the Light |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.7 (3 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 3 — better |
| Update frequency | Every 2 weeks | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.0 — better | 18.6 |
| Further details — not scored | ||
| Size | 320 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Tartu Ulikool | Stelios Platsis |
In-app purchases
Neurokõne
No in-app purchases
Hear the Light
No in-app purchases








