Kaption AI vs OpenImmersive Translator

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

Kaption AI compared with OpenImmersive Translator
Detail	Kaption AI	OpenImmersive Translator
What it does	WhatsApp voice messages to text with AI	Free, open-source browser extension for side-by-side translation on any webpage in 199 languages
Stage	Not given	Not given
Founded	Not given	Not given
Based in	US	Not given
Pricing model	Freemium	Freemium
Pricing	Free: no credit card required. Basic: US$5.99/month (US$4.99/month quarterly, US$3.99/month annually). Pro: US$9.99/month (US$7.99/month quarterly, US$5.99/month annually). Also available in Brazilian Real: Basic from R$29.99/month, Pro from R$49.99/month.	Free: Fast tier up to 5,000 characters per request with no account, 100 welcome credits on signup, 3 PDF document pages per day free preview. Plus: $8/month billed yearly (50% off $16/month), 1,600 credits/month, 10 format-preserving document pages every 10 days, up to 30,000 characters per request.
Key features	Voice message transcription with automatic text conversion Chat summarization with AI Live translation in 36 languages WhatsApp call recording with transcripts Integration with Claude and ChatGPT via MCP Kanban board for chat organization Scheduled messages and reminders Contact export and group member download Privacy mode and screen lock Support for multiple WhatsApp accounts on desktop	Side-by-side translation on web pages Supports 199 languages Works on Chrome, Firefox and Edge Free translation engines with no account required Translation-only viewing mode Hover translation for individual paragraphs Selection and popup translation Input box translation Document translation with layout preservation Optional AI tiers with credit system
What makes it different	Transcription runs locally on your device; audio only temporarily sent to servers for processing 4.8-star rating with over 5,000 reviews in Chrome Web Store Used by over 50,000 active users Works with multiple platforms: Chrome, Edge, Mac, Windows, iPhone, Android	Open-source code licensed under AGPL-3.0 that anyone can inspect Data stays in browser with free engines; no server intermediary Independent project with no connection to Immersive Translate Free core translation engine needs no sign-up or account Optional local masking hides sensitive data before transmission
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)	17 −2 (down) since last check	Not checked yet no change since last check
Trust Flow (Majestic)	6	2
Citation Flow (Majestic)	30	12
Referring domains (Majestic)	181	1

5 details filled in for both companies.

More alternatives to Kaption AI More alternatives to OpenImmersive Translator