Two AI email assistants, two very different approaches. Both promise to draft in your voice. The difference is where your data lives, what surfaces are covered, and how deeply each one learns your business.
Fyxer is a strong product if your day starts in Gmail. It triages noisy inboxes, drafts replies, and keeps clean meeting notes. For Gmail first teams who want a single layer of polish on top, it does the job well.
SMART Reply is built Outlook first. It installs as a Microsoft certified add in, so your email never leaves your tenant. It also covers the conversations that happen outside the inbox: LinkedIn comments and DMs, structured meeting analysis, branded booking pages, travel planning with calendar blocks, and one click filing into OneDrive or SharePoint.
Below is the full feature comparison, then three differences worth weighing before you choose.
Pricing accurate as of May 2026. Check competitor sites for current rates.
SMART Reply Signal turns important meetings and emails into tracked follow through. It captures actions, drafts replies, detects responses, updates action status, finds related emails and keeps the conversation moving until everything is complete.
Signal decides what should happen next. SMART Reply writes the actual email using the normal drafting pipeline.
SMART Reply runs entirely inside your Microsoft 365 tenant. Your messages never leave Outlook. Fyxer runs as an external SaaS, which means a copy of your data is processed on their servers. For regulated industries, in tenant matters.
Most professionals reply on LinkedIn as much as in email. SMART Reply works inside the LinkedIn comment box and DM panel. Fyxer is email and calendar only, which means LinkedIn replies still get written by you the slow way.
At £35 a month SMART Reply includes meeting intelligence, branded booking pages, travel planning, OneDrive filing and brand identity controls. Fyxer Pro at £40 a month focuses on email and meetings only. Roughly the same money, very different scope.
SMART Reply is a Microsoft certified Outlook add in, so it runs inside the Outlook UI on desktop and web and never moves your email outside your tenant. Fyxer connects to Outlook via the Microsoft Graph API, which means a copy of your data is processed by Fyxer servers. Both work, but SMART Reply is closer to native.
SMART Reply is £35 a month or £350 a year. Fyxer Pro is £40 a month or £480 a year. SMART Reply also includes meeting intelligence, branded booking pages, travel planning and OneDrive filing in the same price.
SMART Reply is built for Microsoft 365 and Outlook. A Gmail version is on the roadmap but not yet available. If your team is Gmail first, Fyxer or another Gmail native tool will be the better fit today.
Yes. SMART Reply ships a Chrome extension that adds a draft button to LinkedIn comments and direct messages. Fyxer is email and calendar only.
SMART Reply runs entirely inside your Microsoft 365 tenant, which keeps your audit trail and data residency intact. Fyxer is an external SaaS that processes a copy of your messages on its own servers. For regulated industries like legal, finance and healthcare, the in tenant model is usually preferred.
No credit card required. Installs in your Outlook in under two minutes. Cancel any time.
Get SMART Reply for Outlook