Failed 2023

    Quill (Chat)

    Building a better Slack when Microsoft Teams is free with Office 365 is an uphill battle few can win.

    Founded → Closed

    2019 → 2023

    Funding Raised

    $30M

    Industry

    SaaS/Collaboration

    Country

    USA

    IdeaProof AI Failure Score

    48/100
    Market Fit RiskBurn Rate RiskFounder Risk
    Market Fit Risk
    30
    Burn Rate Risk
    55
    Founder Risk
    15

    Full Analysis

    Quill was a team messaging app positioned as a focused alternative to Slack. Despite backing from a16z, it couldn't overcome distribution advantages of Slack and Microsoft Teams (bundled free). Shut down quietly in 2023.

    Could This Failure Have Been Prevented?

    IdeaProof's AI validates market demand, competitive positioning, and business model viability in minutes — catching the exact issues that sank Quill (Chat).