PrioOur pick
Best for: Founders who want a mature AI chief of staff covering email, calendar, tasks, CRM, GitHub, Slack, voice, and briefings — with deep audit and proactive intelligence.
Pricing: Starter €29/mo, Pro €79/mo, Business €199/mo. 30-day money-back guarantee.
Pros
- Full chief-of-staff scope with mature integrations: Gmail, Outlook, Calendar, Drive, Slack, Notion, GitHub, Attio CRM, LinkedIn, Granola, MCP
- Anticipation engine: birthdays, board prep, contract renewals, key meetings, ghost meetings
- Year-over-year recall — Prio remembers what you did last time and surfaces it
- P0 ringer rings your iPhone via VoIP/CallKit on truly urgent items
- Three voice modes: browser agent, inbound phone agent, outbound calls
- Approval queue + full audit trail
- Autonomous email scheduling negotiations until both parties agree
- Multi-channel: Slack, Telegram, Discord, Teams, iMessage, WhatsApp, web, native iOS
- Workflow templates (durable, resumable Vercel Workflows)
- EU data residency, GDPR compliant, no training on your data
Cons
- −Less new-product hype — prioritises depth over novelty
30-day money-back guarantee. No questions asked.