CallMerlin vs Fellow

CallMerlin describes itself as an AI Chief of Staff that connects to business systems and can be used through phone, chat, widget, desktop, mobile, Slack and Teams. Its workflows can span multiple systems, respond to triggers and include an analysis step with auto-inject. Reads can happen immediately, while writes, emails and payment files wait for approval unless direct execution is enabled. The integrations page lists 96 native deep integrations and says 900+ are available through managed connectors, with examples including HubSpot, Salesforce, Slack, Moneybird, Microsoft 365, Gmail, Stripe, Shopify and Zoom. CallMerlin says each teammate has an individual PIN and permissions are enforced server-side. Credentials use AES-256-GCM encryption, data in transit is protected by TLS, and access uses PIN plus 2FA. Call transcripts and AI summaries are kept for at most 90 days by default; audio is not retained. Starter costs €55/mo (annual), and a 7-day trial is offered; there is no free plan. Android is in closed alpha and the iOS App Store listing is coming soon.

Fellow is an AI meeting assistant that records and transcribes meetings, then creates a Meeting Recap with summaries, decisions and action items. It captures meetings through a bot, or its desktop and mobile apps can record audio directly without a bot joining. Supported settings include Google Meet, Zoom, Microsoft Teams, Slack Huddles and in-person meetings. Ask Fellow searches transcripts, summaries and notes from past meetings to answer questions or surface decisions and tasks. The service lists transcription in 99 languages, while its AI Note Taker description specifies 93. It is available on Android, iOS, macOS, Windows and web, plus an extension and API. The Free plan includes five AI notes and five AI recordings per user for life, with a maximum of five seats. Paid plans start at $7/user/mo billed annually; a 14-day trial is listed, and the workspace moves to Free when the trial ends. Meeting data is not used to train Fellow or third-party AI models, including on Free.