Top 29 Sixty Alternatives in 2026

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.

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.

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.

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.

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

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.

MailMaestro is an AI email assistant for Outlook, Outlook Web, and Gmail that drafts, summarizes, and tags emails in 20+ languages, extracts deadlines and action items, nudges follow‑ups, and adds a Teams meeting‑notes extension.

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.

iManage centralizes document and email management with secure cloud storage, AI-driven classification, data extraction and a natural-language assistant for search and automation, while enforcing access controls, governance, legal transaction workflows and Microsoft co-authoring.

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.

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.

Amie is an AI note-taking tool that automatically records and summarizes meetings on platforms like Zoom and Teams. It supports multilingual notes, generates action items, and integrates with productivity apps for streamlined workflow management.

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.

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.

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.

TheLibrarian.io is an AI-driven personal assistant that integrates with WhatsApp and automates email drafting, scheduling, and calendar management while summarizing emails and resolving conflicts. It also integrates with Google Workspace for document access and offers secure web/messaging app support.

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.

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.

Self-Manager is an AI task manager that extracts tasks, owners, dates and priorities from notes and emails, offering date-centric planning, built-in timers with per-task time tracking, AI-generated period summaries, collaboration tools, customizable dashboards, and analytics.

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.

Lindy.ai is an AI-powered personal assistant that helps with tasks such as email drafting, contract sending, and calendar management. It can also provide summarizations of various media content.