eM Client vs Shortwave

eM Client brings email and productivity tools together on Windows, macOS, Android, and iOS. Its unified inbox accompanies calendar, tasks, contacts, notes, and chat, with offline access, scheduled sending, calendar tools, and online-meeting integration. It supports Google Workspace, Office 365, Outlook, and Exchange, and provides PGP and S/MIME message encryption. Integrations include Teams, Slack, and Rocket.Chat. The Free plan allows two email accounts on one device and costs nothing; registration is required. Personal costs $39.95 a year and permits unlimited email accounts on up to three devices. Business costs $49.95 a year. One-time options are also listed: Personal Lifetime is $59.95, paid once, and Business Lifetime is $79.95, paid once. Android and iOS versions are free to use without a license. Support options include a user forum and VIP Support. The maker is based in Prague, Czech Republic, and lists a 30% discount for NGOs, schools, and universities.

Shortwave is an AI email app for organizing, writing, scheduling, and searching messages with prompts. Email tools include inbox splits, bundles, delivery schedules, todos, summaries, AI filters, and AI-assisted search. Teams can share live threads, comment privately, assign next steps, and use shared labels. Connections include Slack, Calendar, Notion, Asana, and HubSpot; the pricing page also describes built-in integrations or MCP. Shortwave runs on Android, iOS, macOS, web, and Windows, and includes calendar tools and scheduled sending. It offers a free plan and a 14-day trial; paid plans start at $30/user/mo. Business is $30 a month per seat and includes five years of AI search history, up to 50 threads per search, and three AI-powered filters. Premier and Max cost $45.00 USD and $120 a month per seat, respectively, with unlimited history and higher search-thread and filter limits. Shortwave says data is encrypted at rest and in transit, and customer data is not used to train third-party LLMs. It lists CASA Tier 2 compliance and annual third-party security audits.