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MakeRNB vs Sandcastles

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

MakeRNB compared with Sandcastles
DetailMakeRNB logo MakeRNBSandcastles logo Sandcastles
What it doesAI-powered R&B music generator with free daily credits Create viral short-form videos in seconds
StageNot given Not given
FoundedNot given Not given
Based inNot given US
Pricing modelFreemium Paid
PricingFree plan: 15 credits/day with AI Music Generator, AI Lyrics Generator, AI Vocal Separation, Models V4.5+ V4.5 V4, Enhance Style, Public/Private visibility, MP3/WAV/MP4/PNG downloads, Vocal Separation, Split Stem, Generate MIDI, Extend Music, Replace Section, Mashup, email support. Starter: $8.33/mo 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
  • Music Generator: turn prompts or lyrics into complete production-ready arrangements
  • Music Extender: extend songs while preserving timing, tone and musical identity
  • Music Cover: recreate tracks with new vocal texture and stylistic direction
  • Vocal Separation: preview vocal and instrumental stems before export
  • Mashup: blend two tracks into one coherent result
  • Add Vocal: layer AI vocals on existing instrumentals
  • Add Melody: inject fresh hooks and lead lines over tracks
  • Export to MP3, WAV, MP4, MIDI and PNG cover art
  • Access to multiple AI model versions V5.5 through V4
  • Public/Private visibility control for generated tracks
  • 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
  • Generate complete R&B songs end-to-end from prompts, lyrics or reference tracks
  • Specialized in R&B styles including New Jack Swing, Neo-Soul, Quiet Storm and Hip-Hop Soul
  • 100% royalty-free music with commercial licenses included on paid plans
  • No experience needed and free daily credits to start
  • Six integrated workflows designed to work together in one studio
  • 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)14 no change since last check48 +1 (up) since last check
Trust Flow (Majestic)88
Citation Flow (Majestic)2032
Referring domains (Majestic)23151

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