Comparison

Speech Emotion Recognition vs Hear the Light

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

Head to head
About

Speech Emotion Recognition

Features
Read full description

Recognizing emotions through voice (Happy, Anger, Cry, Normal)

About

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.

Highlights
  • Light to sound conversion
  • Detects small indicator lights
  • Fast response time
  • Vibration feedback
  • Color recognition
  • Adjustable sensitivity
  • VoiceOver accessibility
Features
Read full description

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

Speech Emotion Recognition1 screens
Hear the Light4 screens

Verdict

The call

The clearest difference is ads: Hear the Light at none against Speech Emotion Recognition's shown. Hear the Light also leads on update cadence (every 3 days vs fortnightly). Speech Emotion Recognition's advantage is iOS requirement (15.8.3 vs 18.6). On price, 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

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

Speech Emotion Recognition ships an update fortnightly, Hear the Light every 3 days. Both last shipped on October 25, 2026.

Scorecard3 real differences · 7 level
Speech Emotion Recognition versus Hear the Light: the parameters behind the verdict, then further details
ParameterSpeech Emotion RecognitionHear the Light
PriceFreeFree
Rating—4.7 (3 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—3 — better
Update frequencyFortnightlyEvery 3 days — better
AdsYesNo — better
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.8.3 — better18.6
Further details — not scored
Size36 MB1 MB
Age rating4+4+
DeveloperHideaki UchikoshiStelios Platsis

In-app purchases

None

Speech Emotion Recognition

No in-app purchases

None

Hear the Light

No in-app purchases

Questions

Is Speech Emotion Recognition free?
Speech Emotion Recognition is free to download, with no in-app purchases.
Is Hear the Light free?
Hear the Light is free to download, with no in-app purchases.
Do Speech Emotion Recognition or Hear the Light have ads?
Speech Emotion Recognition shows ads; Hear the Light does not.
Which is updated more often, Speech Emotion Recognition or Hear the Light?
Speech Emotion Recognition ships an update fortnightly, and Hear the Light every 3 days. Most recently, Speech Emotion Recognition was updated on October 25, 2026 and Hear the Light on October 25, 2026.

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