iPad Apps to Address book integration

Gmail, a cornerstone of Google's productivity suite, is a free, web-based email service renowned for its intelligent organization, powerful search capabilities, and integration with other Google services. Available across various platforms, it remains a leading choice for personal and professional communication.

ALTO Mail is an intelligent email client designed to simplify real-life organization. It offers a unified inbox, robust features like built-in calendars, and integration capabilities to streamline communication and tasks.

Contacts is a fundamental contact management application designed for macOS, providing seamless integration within the Apple ecosystem for organizing and managing personal and professional connections.

FullContact is a comprehensive platform designed to help businesses and individuals manage, enrich, and unify their contact information. It goes beyond a simple address book, providing powerful tools for cleaning data, discovering professional details, and integrating with existing workflows to create a complete view of every contact.

Inky is a feature-rich email client prioritizing security and a clean interface across Windows, macOS, iOS, and Android. It offers seamless multi-account management, robust privacy features including encryption, and integrations for enhanced productivity and organization.

Apple Calendar is a personal calendar application developed by Apple Inc., designed to seamlessly integrate with your Apple ecosystem whether you are on macOS or iOS. It allows you to manage your schedule, appointments, and events efficiently, synchronizing across all your devices.

Apple Mail is the default email client for macOS, iOS, and watchOS, offering a seamless and integrated email experience across Apple devices with features like rich text editing, multiple account support, and robust organization tools.

Microsoft Outlook is a comprehensive personal information manager designed for managing email, contacts, calendars, and tasks.