Top 29 Sixty Alternatives in 2026

SaneBox uses AI to sort emails by importance, auto‑unsubscribe, delete duplicates, and provide daily digests, follow‑up reminders, and snooze. It works with Gmail, Outlook, iCloud, Yahoo, and any IMAP/Exchange, keeping inboxes tidy and secure.

Inbox AI is a voice-driven automation tool for macOS that streamlines email management and task processing. It integrates with Apple Mail for smart actions, supports custom voice assistants, and ensures privacy through on-device processing.

Reclaim is an AI-powered scheduling tool that helps teams create intelligent and flexible schedules while saving up to 40% of their workweek.

Fyxer streamlines email management by auto‑labeling and filtering spam, generating draft replies in your voice, summarizing meetings, and syncing Gmail/Outlook calendars. It supports single/multi‑inbox setups for teams, cutting admin time.

AI‑powered InboxPro streamlines client acquisition and nurture workflows by auto‑composing, summarizing, and personalizing emails, automating multi‑step follow‑ups, syncing with Google Calendar, tracking opens and clicks, and providing analytics dashboards for data‑driven outreach.

PulseMail is an AI-powered email assistant that optimizes inbox management through smart responses, prioritization, meeting handling, and automation. It provides personalized messages, analytics, and seamless integration with existing tools for enhanced communication efficiency.

Serif streamlines email management by automating replies, scheduling, and organizing messages, reducing processing time by up to 50%. It integrates with Gmail and Outlook, allowing efficient task delegation and easy access to pre-written responses.

Spark Mail unifies IMAP, iCloud, Exchange, Outlook, Yahoo, and Google accounts on one screen, featuring a Smart Inbox, Gatekeeper, and priority highlights. It offers AI summaries, drafting, translation, scheduling tools, and real‑time team collaboration, all encrypted on Google Cloud.

AI‑powered meeting assistant that records, transcribes, and summarizes Zoom, Google Meet, and Teams calls, extracting action items and sentiment. It auto‑logs notes into CRMs, ticketing, and project tools, supports 30+ languages, and offers automated follow‑up workflows.

Meeting.ai is an AI tool that converts meetings into organized visual notes and summaries, offering live transcriptions in over 30 languages, speaker identification, and enhanced information retention through mind maps and infographics for improved collaboration.

MeetingCulture.ai auto‑creates agendas from invites and chats, lets Teams assistants add or modify topics, delivers concise post‑meeting recaps, tracks time, logs tasks and decisions, and provides an insights dashboard to prioritize follow‑up.

Inboxly aggregates email, social media, and messaging into one inbox, auto‑organizing and prioritizing content. AI drafts replies, cuts response time, and sends a daily digest for a quick channel overview, saving users time and streamlining outreach.

Quickmail AI is an AI-driven email assistant that generates professional emails quickly from brief prompts. It enhances productivity by reducing writing time and allows users to customize content to fit their style, supporting efficient email management.

Meet-Ting is an AI-powered email scheduling assistant that integrates directly with your inbox. It automates meeting arrangements and calendar management to eliminate scheduling back-and-forth.

BrieflyAI is an AI tool that creates meeting summaries, insights, and follow-ups to help users stay organized and on track.

Inbox Zero is an AI‑powered assistant for Gmail and Outlook that auto‑labels mail, drafts replies in the user’s voice, bulk unsubscribes, and syncs with calendars and CRM. It offers privacy‑centric, self‑hostable code and inbox analytics.

Stratpilot uses AI to triage email, draft replies, and schedule meetings while integrating CRM, finance, ops, and HR data into a single conversational dashboard. It consolidates inbox, calendar, documents, and analytics for faster decision‑making.

Emilio, the AI email assistant, streamlines email management by prioritizing important emails, summarizing threads, and assisting with email drafting. Save time, achieve inbox zero, and boost productivity effortlessly.

AI Perfect Assistant adds ChatGPT, Gemini, Claude, and 60+ LLMs to Office 365 apps, delivering real‑time grammar, style checks, drafting, summarization, translation, and formula generation to streamline writing, analysis, and teamwork across Word, Excel, PowerPoint, Outlook, Teams, and OneNote.

Saner.AI consolidates emails, calendar, Slack, Drive, and notes into a searchable workspace, auto‑generating tasks, scheduling them, and organizing content with AI tags. It reduces context switching, protects privacy with encrypted storage, and supports bulk import/export of notes.

Missive turns an inbox into a workspace, letting teams view, tag, assign, and comment on messages. It creates tasks from emails, automates actions with rules and AI, and integrates with Gmail, Outlook, calendars, and 25+ apps while keeping security.

MyMeet.ai automates meeting tasks by providing note-taking, discussion summaries, and action item tracking. It integrates with Google Meet and Zoom, supports 70+ languages, and ensures secure transcripts with AES-256 encryption for streamlined productivity.

Instantly.ai is a cold email software that uses AI technology and personalization to increase response rates and drive new business.

Akiflow is a time-blocking digital planner that consolidates tasks, meetings, and events from over 3,000 applications. Its AI co-pilot, real-time notifications, and customizable calendar enhance efficiency and collaboration for users with complex schedules.

Carly AI is an AI assistant designed to streamline your workday by automating tasks across email, calendar, and workflows. It allows you to build custom AI agents tailored to specific roles – like sales, marketing, or customer support – handling repetitive actions efficiently.

Superhuman is an integrated platform that unifies email, document collaboration, and AI assistance. It speeds email with shortcuts, AI replies, auto‑scheduling, syncs with calendars, Jira, Slack, Salesforce, and offers contextual prompts and real‑time collaboration tools.

Shortwave is an AI‑powered platform that unifies email and future messaging tools, granting controlled read/write AI access to streamline drafting, filtering, and insight extraction, boosting daily workflow productivity across business teams.

Clockwise automated calendar management by integrating with major calendars to schedule meetings, create Focus Time blocks, and optimize daily plans. Its AI moved events to better slots, added Smart Hold breaks, and removed clutter, boosting productive hours while maintaining privacy.

AiSchedule X (AiGenda) is an AI tool that instantly generates meeting summaries, highlights tasks, and provides swift access to essential information during Google Meet and Zoom sessions. It delivers results quickly for easy sharing and search functionality.