Riff vs Sandcastles

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

Riff compared with Sandcastles
Detail	Riff	Sandcastles
What it does	Make any song you can imagine	Create viral short-form videos in seconds
Stage	Not given	Not given
Founded	Not given	Not given
Based in	US	US
Pricing model	Freemium	Paid
Pricing	Free account with credits on a paid plan basis. Web plans bill through Stripe and iPhone plans bill through the App Store.	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	Generate complete songs from text descriptions Multiple music genres including hip-hop, pop, R&B, indie, electronic, country, rock, lo-fi, afrobeats, jazz, K-pop, folk, house, soul, punk, and latin Build custom voice from short recording on iPhone app Creative controls for style, vocals, and influence Generated lyrics and artwork for every song Music library synced across web and iPhone app Credit-based system for song generation Creator program for monetization on social media	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	No music experience required—works with plain language descriptions Sing songs in your own voice using voice cloning technology Two complete takes of every song generated Unused credits roll over between billing periods Songs optimized for TikTok, Instagram, and YouTube sharing	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 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)	1 no change since last check	48 +1 (up) since last check
Trust Flow (Majestic)	0	8
Citation Flow (Majestic)	12	32
Referring domains (Majestic)	13	151

6 details filled in for both companies.

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