SPIRAL by GLENDER vs WhitePrint AudioEngine
SPIRAL by GLENDER
spiral.glenderdj.comWhitePrint AudioEngine
aimastering.techSide by side
| Figure | SPIRAL by GLENDER | WhitePrint AudioEngine |
|---|---|---|
| Price from | Free | $54/mo |
| Free plan | Yes | Yes |
| Free trial | — | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| API | — | Yes |
| Plans published | 1 | 9 |
| Spec score · AI mastering tools | 7.1 (#42) | 8.3 (#10) |
| Analysis | It reports LUFS loudness, true peak and clipping, dynamics, spectrum, stereo correlation, and phase. | Its analysis stage measures BS.1770-4 loudness, LUFS, true peak, loudness range, crest factor, spectral balance, stereo width, and song sections. |
| Intended users | The maker presents SPIRAL as a free mastering tool for producers who want to make informed decisions before release. | The maker describes Standard as intended for producers who master regularly and Pro as intended for professional engineers and labels. |
| Support | The privacy page lists [email protected] for privacy-related questions. | The Standard plan includes email support, Pro includes priority support, API includes dedicated support and an SLA, and White Label includes 24/7 dedicated support with a 99.9% SLA. |
Plans
WhitePrint AudioEngine
- FreeFree
- Standard$54 a month
- Standard$648 a year
- Pro$1,092 a month
- API$2,196 a month
- White Label$5,506 a month
- Pro$13,104 a year
- API$26,352 a year
- White Label$66,072 a year
In their own words
SPIRAL by GLENDER
SPIRAL by GLENDER has no write-up on Specifiction yet; its figures are above.
WhitePrint AudioEngine
WhitePrint AudioEngine provides AI-powered audio analysis and mastering through a web interface and API, returning analysis data, mastered audio, or both. Its BS.1770-4 analysis measures LUFS, true peak, loudness range, crest factor, spectral balance, and stereo width. Three independent AI models make mastering recommendations, and users can inspect each model's advice and the reasoning behind the consensus. The mastering chain has 14 hybrid DSP stages, bypassed by default unless the AI directs otherwise. Users can compare original and mastered audio with an A/B player, inspect metric changes, and download a WAV file. WAV and FLAC inputs are supported, and direct processing can use links from Google Drive, Dropbox, OneDrive, Amazon S3, and Google Cloud Storage; Suno and SoundCloud are also listed as URL sources. API routes support full mastering, analysis-only, deliberation-only, and DSP-only tasks. Submitted audio is deleted within 24 hours after job completion and is not used to train AI models. The free plan includes three WAV masters monthly and seven days of analysis history. Paid plan prices range from $54 a month to $5,506 a month.