Riff vs SFX Engine

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 SFX Engine
Detail	Riff	SFX Engine
What it does	Make any song you can imagine	AI sound effect generator that creates royalty-free SFX from text descriptions in seconds
Stage	Not given	Not given
Founded	Not given	Not given
Based in	US	Not given
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.	Starter: $10/month or $8/month billed yearly for 500 credits. Creator: $25/month (50% off first month) or $20/month billed yearly for 4,000 credits. Pro: $90/month (50% off first month) or $72/month billed yearly for 15,000 credits. Each sound effect costs 3 credits. Browsing and downloading from th
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	AI sound effect generation from text descriptions Sound effects up to 47 seconds long Background music creation DJ transition maker Stem splitter for music Royalty-free commercial license included Free public library of pre-made sounds API access on all plans Voiceover generation
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	Generated sound effects are royalty-free for commercial use without licensing fees Sounds created from text descriptions are unique to your project Generate sounds in 5-15 seconds typically Supports diverse use cases including games, video, podcasts and music production Cancel anytime with no long-term commitment
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	40 +1 (up) since last check
Trust Flow (Majestic)	0	26
Citation Flow (Majestic)	12	42
Referring domains (Majestic)	13	850

5 details filled in for both companies.

More alternatives to Riff More alternatives to SFX Engine