AddSubtitle vs Sonix

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

AddSubtitle compared with Sonix
Detail	AddSubtitle	Sonix
What it does	Translate, subtitle, and dub videos with AI in 100+ languages	AI transcription and translation platform that converts audio and video to text with 99% accuracy in 54+ languages
Stage	Not given	Established
Founded	Not given	2017
Based in	Not given	US
Pricing model	Freemium	Freemium
Pricing	Basic (Free): 30 credits per month. Standard: $9.9/month for 200 credits. Pro: $19.9/month for 500 credits. Enterprise: Contact for pricing with unlimited credits. Credits can be used for: 6 min add subtitles (Basic), 3 min translate video (Basic), 60 sentences voiceover (Basic), 300 sentences trans	Pay as You Go: $10/hour; Core: $25/month or $275/year (5 hours/month transcription, 5 hours/month AI analysis, 25 GB storage); Advanced: $50/month or $550/year (20 hours/month transcription, 25 hours/month AI analysis, 50 GB storage); Pro: $80/month or $880/year (40 hours/month transcription, 100 ho
Key features	Automatic subtitle generation in 100+ languages Video translation with voice dubbing Voice cloning with 10-second recording Bilingual subtitle support Lip sync technology Customizable subtitle styling and templates Real-time timeline editing controls Multiple speaker support Industry-standard subtitle export (TXT/SRT)	99% transcription accuracy in 54+ languages Speaker diarization with automatic speaker identification AI-powered summaries, chapters, and sentiment analysis Automated subtitles and captions with multiple export formats In-browser audio and text editor with word-level timestamps Full-text search across entire transcript libraries Multi-user collaboration with permission controls Integration with Zoom, Teams, Google Meet, and Adobe Premiere SOC 2 Type II certified with AES-256 encryption HIPAA compliance for healthcare organizations
What makes it different	99.9% subtitle accuracy with AI-powered automatic generation Browser-based editing with no installation required 2X faster video editing compared to traditional tools Intuitive interface accessible to users without editing experience AI voice generation that captures natural speaking style	90% cost reduction versus manual transcription at $10/hour versus $100+/hour Transcription 10x faster than manual at 10 minutes versus 2-3 days Structured conversation objects convert transcripts into searchable, audit-ready intelligence Enterprise-grade security with SOC 2, HIPAA, and zero training policy on customer data
Free plan	Not given	Not given
Open source	Not given	Not given
Platforms	Not given	Not given
Public API	Not given	Not given
Community votes	0	0
DR (Domain Rating by Ahrefs)	16 −1 (down) since last check	74 no change since last check
Trust Flow (Majestic)	22	17
Citation Flow (Majestic)	31	64
Referring domains (Majestic)	374	3280

5 details filled in for both companies.

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