Realeyes vs FacialProof Speech Emotion Recognition API

Realeyes8.6Visit FacialProof Speech Emotion Recognition API7.9Visit

Higher score Realeyes #3 in Emotion AI Software 8.6/10 Pricing on request ✓ 2 of 3 features Visit Realeyes

vs

FacialProof Speech Emotion Recognition API #7 in Emotion AI Software 7.9/10 Free plan Free plan✓ 3 of 3 features Visit FacialProof

• Realeyes fits best

  Researchers measuring ad and audience response

• FacialProof Speech Emotion Recognition API fits best

  Teams tracking vocal emotion in live calls

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Side by side

Feature	Realeyes 8.6/10 Visit ↗	FacialProof Speech Emotion Recognition API 7.9/10 Visit ↗
At a glance
Editor score	8.6	7.9
Ranking	#3 in Emotion AI Software	#7 in Emotion AI Software
Best for	Researchers measuring ad and audience response	Teams tracking vocal emotion in live calls
Pricing model	Paid	Free plan + paid
Starting price	Pricing on request	Free plan
Free plan	Not checked yet	✓ (best)
Free trial	—	—
Deployment	Cloud	Cloud, Self-hosted
Platforms	Web	Web, Windows, macOS, Linux, iOS, Android
Built for	Mid-market, Enterprise	Small business, Mid-market, Enterprise
Features Realeyes 2/3 · FacialProof Speech Emotion Recognition API 3/3
Real-time analysis	✓	✓
API access	✓	✓
Data retention control	Not checked yet	✓ (best)
Specs
Input modalities	face, video	voice/audio
Deployment	Cloud	Not checked yet
Supported languages	Not checked yet	5
Our review
Pros	Tracks attention and facial-expression responses while viewers watch creative Shows frame-level focus heatmaps and second-by-second response traces Compares creative versions with benchmarks and optional brand-lift surveys	Streams live audio over WebSocket or WebRTC and processes recordings in batches. Scores emotion by time segment and tracks changes continuously during calls. Offers Python and JavaScript SDKs, with noise-resilient processing for calls.
Cons	Pricing requires contacting sales The documented Emotion & Attention API is scheduled for retirement on September 30, 2026 Its focus on creative response may not suit broader emotion-analysis needs	Free-tier usage limits and paid plan prices are not published on the product page. The product page does not explain how retention controls are configured. Emotion analysis is limited to voice and audio input.
Our verdict	Realeyes offers Human Measurement for advertisers and brands evaluating video and other creative. It combines audience-attention measurement with facial-expression analysis to show how viewers respond, making it a fit for research teams… Read the review →	FacialProof Speech Emotion Recognition API analyzes tone, pitch, prosody, and vocal stress to estimate emotion in live or recorded speech. It is aimed at teams monitoring call-center conversations, building voice assistants, or checking… Read the review →

Strengths and trade-offs

• Realeyes — where it wins

  • Tracks attention and facial-expression responses while viewers watch creative
  • Shows frame-level focus heatmaps and second-by-second response traces
  • Compares creative versions with benchmarks and optional brand-lift surveys

  Where it doesn't

  • Pricing requires contacting sales
  • The documented Emotion & Attention API is scheduled for retirement on September 30, 2026
  • Its focus on creative response may not suit broader emotion-analysis needs

• FacialProof Speech Emotion Recognition API — where it wins

  • Streams live audio over WebSocket or WebRTC and processes recordings in batches.
  • Scores emotion by time segment and tracks changes continuously during calls.
  • Offers Python and JavaScript SDKs, with noise-resilient processing for calls.

  Where it doesn't

  • Free-tier usage limits and paid plan prices are not published on the product page.
  • The product page does not explain how retention controls are configured.
  • Emotion analysis is limited to voice and audio input.

• Realeyes8.6/10 · Pricing on request

  Creative testing pairs facial-response measures with time-based analysis and optional surveys.

  Visit RealeyesFull verdict →
• FacialProof Speech Emotion Recognition API7.9/10 · Free plan

  Speech emotion analysis with live streaming, batch processing, and time-segment scores.

  Visit FacialProofFull verdict →