Consumer Applications

For most people, email is the single most important data source they have. With Context.IO’s specialized set of calls, you can pull important messages, attachments, and threads for a mailbox. This allows you to easily create apps for document management, specialized data like flight itineraries, or communications among friends. The use cases for creating consumer applications on email are almost endless.



AirHelp gets your money back for cancelled or delayed flights. They use the Context.IO API to extract flight data and instantly check if any of your flights are eligible for compensation.

Context.IO gave us a simple API for accessing email across several providers. It made using email data a breeze. I recommend it to anyone who just want to get the job done instead of digging into low level system details.

—Valentin Mihov, AirHelp



Mailtime makes email as quick and easy as text messaging. It uses the Context.IO API to reformat emails into a conversation view. This is email reinvented for the smart phone.

"We really enjoyed working with Context.IO. It's easy to set up, and we got responsive support and feedback. As a startup, it means a lot to us that we start with the right partners. Without this great service, we would have never been able to support real-time push notifications before the TechCrunch Startup Battlefield when we first launched."

—Charlie Sheng, CMO of MailTime


Business Communications

Email is still the main form of communication between personal and business contacts. Use Context.IO to tap into the insight only email can provide. Improve sales, collaboration, and your bottom line by harnessing the rich data stored in email.


unifiedinbox.comUnified Inbox

Unified Inbox centralizes external conversations, social engagement, and team collaboration in one platform across desktop and mobile devices. The Context.IO API makes it easy for Unified Inbox to integrate email into their collaboration platform.

"Email is messy, it’s complicated. Context.IO’s API makes it easy for products that have a strong email focus to provide a totally professional and reliable integration which can easily compete with much bigger and more expensive solutions."

—Toby Ruckert, CEO of Unified Inbox

Unified Inbox


Contactually leverages Context.IO to significantly reduce the amount of development time they would otherwise have used building directly with IMAP.

"Context.IO's APIs have been very easy to implement. Their APIs provided everything we needed, and have helped reduce the amount of code we have to support. Furthermore, we've been in close contact with their support team, who have helped us with implementation questions, and resolved any issues we had."

—Jeff Carbonella, Lead Engineer at Contactually


Productivity & Product Management

The inbox is the heart and soul of business discussions and where most people’s project management and task lists reside. Being able to tap into task-related information within email and tie it into productivity or project management tools can bring these apps immediate value. Context.IO makes this easy.

Examples is a simple and powerful tool to file, sort, and schedule emails with ease.

"Context.IO has helped us speed up development and bring to life features in weeks instead of months."

—Dylan Stamat, CTO at