SoCaptions vs RNDRS Studio

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

SoCaptions compared with RNDRS Studio
Detail	SoCaptions	RNDRS Studio
What it does	AI video caption generator with word-level timing and MP4 export for short-form video platforms	AI rendering workspace for architects that works from a sketch, model view or photo
Stage	Not given	Startup
Founded	Not given	2026
Based in	PL	Not given
Pricing model	Freemium	Freemium
Pricing	Free tier: 5 minutes of transcription, edit-only (no export). Pro monthly: $5/month with 100 minutes of transcription and 100 minutes of MP4 export per month. Pro yearly: $50/year (pay 10 months, get 12).	5 free renders with no card required. Paid plans: Essential $19/month for 40 credits, Premium $29/month for 100 credits, Pro $79/month for 300 credits. One-time credit pack: $99 once for 300 credits that never expire. Annual billing available at discount: $190/year, $290/year, $790/year respectively
Key features	Word-level AI timing for precise caption synchronization AI transcription with automatic language detection (99 languages) Viral-ready caption presets (Bold Outline, Box, Cinematic, Karaoke, Emphasis, Animated) Burned-in MP4 export with no watermark SRT and VTT subtitle format export Drag-and-drop editor with word-level timing adjustment Fast transcription (12 seconds for 60-second clip) Support for large video files (up to 5 GB) Free subtitle conversion tools (SRT, VTT, ASS formats) Safe zone preview for TikTok and Instagram Reels	Upload sketches, model views or site photos to start rendering Select specific areas with brush, lasso or polygon to edit Attach reference images to communicate materials and style Keep all versions and compare directions in one project Create review links with expiry and comment collection Upscale images 2× for presentations Generate short videos from still images Export comparison boards and image bundles No plugin installation or GPU required Works with exported views from SketchUp, Revit, Rhino, Archicad and Blender
What makes it different	Word-level caption timing instead of block-level for tighter rhythm and precise control No watermark on exported videos; clean MP4s ready to publish immediately Burned-in captions survive downloads, reposts, and all players without separate subtitle files Free tier with 5 minutes of editing; no credit card required to try 99-language auto-detection including mixed-language video support	No plugin or GPU needed – works entirely in the browser from image uploads Keep every version as you iterate – all results stored together for comparison Works from sketches, model views and photos – not native CAD or BIM files Commercial use permitted on all paid plans Credits never expire on one-time purchase pack
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)	5 −2 (down) since last check	1 no change since last check
Trust Flow (Majestic)	19	0
Citation Flow (Majestic)	14	23
Referring domains (Majestic)	47	17

5 details filled in for both companies.

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