Choose Microsoft 365 Copilot when you need organizations committed to the Microsoft 365 suite seeking secure, permission-governed AI assistance inside Teams, Outlook, Word, and Excel. Choose Notta when you need teams and professionals conducting client meetings, interviews, or consultations who need automated transcription, summaries, and CRM updates across desktop and mobile devices. ToolsRank scores Microsoft 365 Copilot 79.3 and Notta 76.5; the gap reflects editorial quality, utility, trust, and freshness, not popularity or payment.

Microsoft 365 Copilot: At the review date, the standalone Microsoft 365 Copilot Business add-on starts at a promotional $18.00 per user/month paid annually (originally $21.00; monthly billing is $25.20). Bundled plans like Microsoft 365 Business Standard with Copilot start at $23.50 per user/month paid annually. Copilot Chat is included at no extra cost for eligible commercial users. Check the official pricing page for up-to-date figures. Notta: Prices checked on 2026-09-08 based on official Japanese pricing pages. Individual paid plans start at ¥1,185 per month billed annually (¥14,220 per year), with team plans starting at ¥2,508 per month billed annually. Academic discounts of 50% are available for eligible educational email addresses. Verify current rates on the vendor pricing page. Compare the plan you would actually use and verify current prices on each vendor's pricing page before purchasing.

Microsoft 365 Copilot currently scores higher for ai meeting assistants work. Notta remains the stronger pick when your priority is teams and professionals conducting client meetings, interviews, or consultations who need automated transcription, summaries, and CRM updates across desktop and mobile devices. Avoid Microsoft 365 Copilot if you are teams running primarily on Google Workspace or lightweight environments without Microsoft 365 licenses.

Yes. Microsoft 365 Copilot stands out for deep, native integration with Microsoft 365 applications, grounded in tenant-wide documents, emails, and meetings via Work IQ while preserving strict Microsoft Purview enterprise permissions. Notta stands out for unlike software-only meeting bots, Notta pairs cross-platform capture (web, mobile, desktop, Chrome extension) with its own dedicated Notta Memo hardware recorder, while offering specialized Japanese language modeling, cross-meeting multi-file analysis via Notta Brain, and domestic Japanese data residency. Pairing them makes sense when one workflow needs both strengths; otherwise pick the tool that matches your primary job.