SoCaptions 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.

SoCaptions compared with SFX Engine
Detail	SoCaptions	SFX Engine
What it does	AI video caption generator with word-level timing and MP4 export for short-form video platforms	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	PL	Not given
Pricing model	Freemium	Paid
Pricing	Free tier: 5 minutes of transcription, edit-only (no export). Pro monthly: $5/month with 100 minutes of transcription and 100 minutes of MP4 export per month. Pro yearly: $50/year (pay 10 months, get 12).	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	Word-level AI timing for precise caption synchronization AI transcription with automatic language detection (99 languages) Viral-ready caption presets (Bold Outline, Box, Cinematic, Karaoke, Emphasis, Animated) Burned-in MP4 export with no watermark SRT and VTT subtitle format export Drag-and-drop editor with word-level timing adjustment Fast transcription (12 seconds for 60-second clip) Support for large video files (up to 5 GB) Free subtitle conversion tools (SRT, VTT, ASS formats) Safe zone preview for TikTok and Instagram Reels	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	Word-level caption timing instead of block-level for tighter rhythm and precise control No watermark on exported videos; clean MP4s ready to publish immediately Burned-in captions survive downloads, reposts, and all players without separate subtitle files Free tier with 5 minutes of editing; no credit card required to try 99-language auto-detection including mixed-language video support	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)	5 −2 (down) since last check	40 +1 (up) since last check
Trust Flow (Majestic)	19	26
Citation Flow (Majestic)	14	42
Referring domains (Majestic)	47	850

5 details filled in for both companies.

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