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FreeUpscaler vs Sandcastles

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

FreeUpscaler compared with Sandcastles
Detail FreeUpscalerSandcastles logo Sandcastles
What it doesUpscale video to 4K on your own GPU for free, or use cloud AI models Create viral short-form videos in seconds
StageNot given Not given
FoundedNot given Not given
Based inNot given US
Pricing modelFreemium Paid
PricingLocal methods: free and unlimited. Cloud AI: 3 free credits on sign-up; credit packs from $5 (150 credits plus 20% bonus on first top-up); AI Restore ≈95 credits, Video Enhance ≈12 credits, Topaz Proteus ≈68 credits, Topaz Starlight ≈68 credits. Video prices are per 10-second 720p clip enlarged 2×. Pro: $49/month (billed monthly) or $39/month (billed yearly). Visionary: $99/month (billed monthly) or $79/month (billed yearly). Titan: $499/month (billed monthly) or $399/month (billed yearly).
Key features
  • Upscale video 2×, 3× or 4× without upload
  • Runs entirely in browser on local GPU
  • Supports H.264, VP9, AV1 codecs
  • Results stored 30 days for cloud runs
  • Hardware-accelerated H.264 or VP9 encoding
  • Works offline for local methods
  • Precision and generative AI model options
  • Customizable feed of successful channels from Instagram, TikTok, and YouTube
  • Find top-performing viral outlier videos in any niche
  • In-depth analysis of why videos went viral with hooks and storytelling frameworks
  • Instant transcript downloads from any video
  • AI-powered script writing using proven storytelling frameworks
  • Hook template generation with millions of validated views
  • Project organization to collect and manage winning video ideas
  • Monthly credits system for analyzing videos, writing scripts, and generating reports
  • Multiple workspace creation to organize content by niche
  • Personal analytics tracking and competitor monitoring
What makes it different
  • Free local upscaling with no upload, watermark or limits
  • Runs entirely in browser using WebGPU—nothing leaves your device
  • Pay-per-run cloud models with no subscription required
  • Real 4K output at 3840×2160 resolution
  • Analyzes millions of videos daily to find top 1% outliers in every niche
  • Data-backed storytelling frameworks based on billions of views
  • All-in-one platform combining research, analysis, and script generation
  • No social media account connection required to get value
Free planNot given Not given
Open sourceNot given Not given
PlatformsNot given Not given
Public APINot given Not given
Community votes00
DR (Domain Rating by Ahrefs)10 −1 (down) since last check48 +1 (up) since last check
Trust Flow (Majestic)58
Citation Flow (Majestic)2132
Referring domains (Majestic)19151

5 details filled in for both companies.

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