Rendastic vs GridBulk

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

Rendastic compared with GridBulk
Detail	Rendastic	GridBulk
What it does	Free AI video generator with no signup, watermark, or installation required	AI batch image generation with grid splitting: one prompt, up to 16 images, one credit
Stage	Not given	Startup
Founded	Not given	2026
Based in	Not given	Not given
Pricing model	Freemium	Freemium
Pricing	Free: 3 clips per day (3–5 seconds, 480p, no watermark). Starter: $16.99/month (1,200 credits/month). Pro: $29.99/month or $287.88/year (2,200 credits/month). Ultra: $49.99/month or $479.88/year (3,800 credits/month). One-time packs: $4.99 (350 credits), $14.99 (1,060 credits), $29.99 (2,150 credits	Free plan includes 20 credits on signup with the first generation free. Basic: $19/month for 2,000 credits/month (≈32,000 images with 4×4 grid). Pro: $49/month for 5,000 credits/month (≈80,000 images with 4×4 grid). Max: $99/month for 10,000 credits/month (≈160,000 images with 4×4 grid).
Key features	Text to video generation from written prompts Image to video animation Multiple AI models including Veo, Seedance, Wan, Kling, and Grok No watermark on free exports Browser-based, no app installation required Multiple video styles including cinematic, natural, and animated Up to 1080p resolution with paid plans Shared credit balance across video, image, and audio tools Commercial use allowed for generated videos Optional Google sign-in to save work history	Generate up to 16 images in a single 4×4 grid Grid splitting into individual pixel-perfect assets REST API with sync and async endpoints MCP server for AI agent integration Reference image support for style guidance Runs on Google Gemini and OpenAI GPT Image models Dashboard history with searchable generations
What makes it different	No signup or login required to generate free videos Clean exports with no watermark on any plan 3 free video clips daily with no account creation Runs entirely in browser on desktop and mobile 38 different AI video models to choose from	One credit per grid instead of per image, reducing cost per image to 1/16 for 4×4 grids Contact-sheet view for side-by-side comparison of all results API and MCP server built for AI agents as first-class users Independent and self-funded operation First generation completely free with 20 signup credits
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)	8 +1 (up) since last check	Not checked yet no change since last check
Trust Flow (Majestic)	3	0
Citation Flow (Majestic)	10	0
Referring domains (Majestic)	4	0

5 details filled in for both companies.

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