Contact Fourier Study

Reach the Fourier Study team for product support, partnership enquiries, or general feedback. We typically respond within 24–48 hours.

Get in Touch

Email us directly at info@wachump.net, or use the contact form in the application.

Support Categories

Account issues
Billing enquiries
Technical support
Feature requests
Bug reports
Data and privacy requests

Response Times

We aim to respond to all enquiries within 24–48 hours on business days. For urgent account or billing matters, please include your account email in the subject line.

Fourier Study — Evidence-First AI Research with Hybrid Retrieval (RRF)

Investment-grade AI research with zero fabrication. Every chat turn runs hybrid retrieval — vector (pgvector) and keyword (Postgres full-text) search fused via Reciprocal Rank Fusion — so the model only ever sees the highest-signal evidence, and every factual claim is grounded in verified sources with anchored citations.

What Fourier does

Hybrid retrieval on every turn — vector + keyword search fused via Reciprocal Rank Fusion (RRF, k=60) across your documents, conversations and highlights
Live web research with verified citations across every claim
Deep research reports with cross-verification and source grounding
Document analysis for PDFs, Word documents and spreadsheets
Multi-format outputs: chat, executive summaries, slides, audio briefings, flashcards
Project management with task boards, timelines and risk maps
Google Workspace integration for Calendar, Drive, Docs and Sheets
Study mode with personalised learning, progress tracking and Socratic feedback

For analysts, researchers and decision-makers

Fourier is built for professionals who need accurate, verifiable information. Every output is traceable to its source. Enable JavaScript to access the application, or learn more at fourierstudy.net.