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.



Paribus automatically saves you money when the items you bought drop in price. Stores often guarantee that you will get the lowest prices but they don’t follow through unless you work for it. Paribus does the work for you. When you are owed money, Paribus gets it for you.



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



Shopami organizes all the deals from your inbox into the app and allows you to receive push notifications when you are near a store that you have a deal for. Never miss another deal from your favorite brands.


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.



ActiveCampaign is the all-in-one marketing platform that helps grow your business while also saving you time thanks to its seamless experience.

"Implementing Context.IO, simply put, was easy. Their documentation is clear and has great depth. Their API allows us to provide functionality for our user's email accounts, regardless if they’re from Gmail, Yahoo, Outlook, or custom IMAP. I can’t imagine providing the same functionality without using them. We’d literally need a whole dedicated team to work on just that."

—Tim Jahn, Product Developer



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

Contactually offers a web-based personal start page with an integrated bookmarks manager, support for news feeds and a library with thousands of widgets that help you connect to popular services and custom data sources.


Productivity & Project 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.



This email extension helps stop junk messages from cluttering your inbox. Quickly delete and block all your unwanted junk, promotional and spam emails.



Clear out your inbox. Shorten your to-do list. Never forget to follow up. All with a simple email address. FollowUpThen is a simple, flexible email address that can be with any email system on any device.

"Integrating Context.IO was simple. Their APIs "just work" and their support is great. Context.IO allowed us to focus on our core offering and opened the door to functionality that would not have otherwise been possible."

—Reilly Sweetland, Co-Founder


Handle combines your to-dos, email, and calendar so you know exactly what you need to accomplish today, tomorrow, and beyond.