SFX Engine vs ImgExtender

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 ImgExtender
Detail	SFX Engine	ImgExtender
What it does	AI sound effect generator that creates royalty-free SFX from text descriptions in seconds	Expand photos without cropping or stretching
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: 10 credits (2 generations). Pro: $9.99/month ($119.88 yearly, 2,400 credits/year). Max: $29.99/month ($359.88 yearly, 9,600 credits/year). Each generation costs 5 credits. Free and Pro results are watermark-free for Pro and Max subscribers; free tier results are watermarked.
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	Generate new canvas space around images in square, portrait, or landscape ratios Position subject within destination frame before generation Review generated space on comparison canvas before download No prompts required Browser-based editor with no software installation Private uploads and results by default Watermark-free results on Pro and Max plans Commercial use rights on paid subscriptions Support for JPG, PNG, and WebP formats up to 10 MB Same professional image-extension model across all plans
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	No complex prompts or AI settings required—just set the frame and position the subject Designed specifically for image extension without upscaling or cropping Full control over composition and subject placement before generation One image adapted for multiple layouts and formats simultaneously Private by default with automatic deletion after 7 days
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	12 −1 (down) since last check
Trust Flow (Majestic)	26	4
Citation Flow (Majestic)	42	18
Referring domains (Majestic)	850	28

5 details filled in for both companies.

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