Summarizer.tube vs GramBook

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

Summarizer.tube compared with GramBook
Detail	Summarizer.tube	GramBook
What it does	Free AI tool that turns YouTube videos into summaries with key points and timestamps	Translate one thought into ten social media dialects, running locally on your phone with no account or cloud.
Stage	Startup	Not given
Founded	2026	Not given
Based in	Not given	US
Pricing model	Freemium	Freemium
Pricing	Free: 5 summaries per day, no signup required. Pro: $7.99/month or $59.99/year (save 37% with annual billing). Free users get key points extraction; Pro includes 100 summaries and video questions per day, 50 transcript extractions per day, and instant translation to 12 languages.	Free: 1 rewrite per day. GramBook Unlimited: $1.99 a week or $42 a year.
Key features	Instant YouTube video summarization Key points extraction with timestamps Chat with video content 50+ languages supported No account required YouTube Shorts support Full transcript extraction Chrome extension available	Runs entirely on device with no cloud or servers Unlimited regeneration to get different versions Works in airplane mode Exports rewrites as customizable meme cards Supports 16 languages with Apple Intelligence
What makes it different	Free with no mandatory signup or credit card Clickable timestamps let you jump directly to moments in the video Summaries available in 12 target languages independent of video language	Keeps all text local on your device with zero cloud processing or data transmission Generates platform-specific content for each social network simultaneously Free tier with one daily rewrite and no account setup Works offline in airplane mode without any account or subscription
Community votes	0	0
DR (Domain Rating by Ahrefs)	Not checked yet no change since last check	6 no change since last check
Trust Flow (Majestic)	0	1
Citation Flow (Majestic)	17	22
Referring domains (Majestic)	8	11

5 details filled in for both companies.

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