SFX Engine vs Highlightly

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

SFX Engine compared with Highlightly
Detail	SFX Engine	Highlightly
What it does	AI sound effect generator that creates royalty-free SFX from text descriptions in seconds	Turn articles, PDFs, and transcripts into source-backed social media graphics and captions
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	Paid	Freemium
Pricing	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	Free plan with 20 credits. Pro: $15/month with 200 credits/month. Creator: $39/month with 800 credits/month. Agency: $99/month with 3,000 credits/month. Annual billing saves 20%. Source ingestion costs 6 credits for Faithful Extract, 8 for Clean Rewrite, 10 for Research Brief. Article search costs 2
Key features	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	Extract quotes, stats, and hooks from articles, PDFs, and transcripts Multi-format input: article URLs, PDFs, DOCX, PPTX, YouTube transcripts, text paste, and article search Pre-filled quote cards, stat cards, carousels, and screenshots Brand kit application across all assets Multiple export ratios for different platforms Platform-specific captions for LinkedIn, X, Instagram, and Reddit Screenshot capture, slicing, and annotation LinkedIn carousel sequence builder Session auto-save and cloud sync AI-powered carousel and graphic generation
What makes it different	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	Real quotes and stats extracted from actual sources with no hallucination Source-backed extraction preserves attribution and credibility One source becomes a full content kit in under 60 seconds Automatic brand consistency applied across all assets Ready-to-edit templates reduce design time from 2 hours to seconds
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)	40 +1 (up) since last check	16 −1 (down) since last check
Trust Flow (Majestic)	26	21
Citation Flow (Majestic)	42	20
Referring domains (Majestic)	850	85

5 details filled in for both companies.

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