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Lacuna vs RTFV

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

Lacuna compared with RTFV
DetailLacuna logo LacunaRTFV logo RTFV
What it doesAI song generator that turns ideas or lyrics into complete songs with vocals, then lets you remix, extend, split stems, and master on one canvas AI tool to remove hardcoded subtitles, captions, timestamps, logos and watermarks from video
StageNot given Not given
FoundedNot given Not given
Based inNot given Not given
Pricing modelFreemium Freemium
PricingFree: 120 credits per month, no card required. Basic: $114/year (or $9.50/month), 2,500 monthly credits. Pro: $294/year (or $24.50/month), 7,500 monthly credits, includes downloadable license PDF. Ultra: $594/year (or $49.50/month), 25,000 monthly credits, includes downloadable license PDF and unlim Not given
Key features
  • Generate complete songs with AI vocals, lyrics, melody, and instrumentation in any genre
  • Multiple AI models: Aether (wide styles), Reverie (lyrics sung exactly as written), Echo (structured songs), Cadence (melody-based)
  • Remix, extend, and rewrite specific sections while keeping lyrics time-aligned
  • Split tracks into 2, 4, or 6 stems (vocals, drums, bass, instruments)
  • AI mastering on the same canvas with reference sound matching
  • Train and use your own singing voice on new songs or swap onto existing tracks
  • Hum a melody or upload MIDI file to build a full song around it
  • Add instrumentation to a vocal or vocals to a beat
  • Support for 10+ vocal languages with Reverie model
  • Commercial license included on all paid plans; Pro and Ultra include downloadable license certificate
  • Auto mode for conventional bottom captions detection
  • Box select for fine-grained text region selection
  • Temporal inpainting for background reconstruction
  • Support for MP4 and MOV formats up to 2GB
  • Output up to 1080P resolution
  • 30-day file retention after upload
  • Support for Chinese and English text detection
  • Per-second billing instead of minute-rounded
What makes it different
  • Can edit specific sections on the waveform without regenerating the entire song
  • Available in 9 languages for global audience
  • Works for producers, songwriters, content creators, and independent artists without requiring music knowledge
  • Pay by actual video seconds rather than rounded minutes
  • Preserves full frame composition without cropping or blur
  • Automatic credit refund for failed processing tasks
  • Choice between fast Auto mode or detailed Box select reconstruction
Free planNot given Not given
Open sourceNot given Not given
PlatformsNot given Not given
Public APINot given Not given
Community votes00
DR (Domain Rating by Ahrefs)30 +1 (up) since last check18 +1 (up) since last check
Trust Flow (Majestic)152
Citation Flow (Majestic)3516
Referring domains (Majestic)1916

4 details filled in for both companies.

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