Castos Technology Stack

99designs is a graphic design marketplace.

Manage email marketing campaigns from design to follow-up, through personalization & segmentation, triggered automations, testing, & real-time reporting.

Collection of sound effects, royalty free music and stock audio.

Bananatag is an email tracking service that notifies its users when their contacts view or click-through the emails sent to them.

Branch helps mobile apps grow with deep links that power referral systems, sharing links and invites with full attribution and analytics.

Contest Domination is a contest software that allows companies to create online contests that spread virally and gather qualified leads.

ConvertKit is a marketing and lead generation automation solution aimed at professional bloggers, with opt-in forms, drip email marketing, landing pages, and more 

CoSchedule is an all in one marketing calendar for in house marketing teams, agencies, small businesses, solo entrepreneurs, and higher education. The cloud-based app can be used to build content, collaborate with team members, schedule campaigns and social media posting, and streamline execution. 

Adyen is a payment processing platform built for businesses within any sector, with tools for accepting payments in multiple formats and optimizing growth.

Boku is a mobile payments network providing mobile-enhanced payments in e-commerce and at physical point-of-sale.

eHopper is a cross-platform POS system for small businesses.

GoFundMe is a crowdfunding and social fundraising platform.

Patreon enables creators to earn ongoing revenue directly from their fans.

ProfitWell is a free turnkey solution that powers subscription financial reporting for over five thousand SaaS and subscription companies.

Stripe is an online payment processing tool for internet businesses. Stripe handles everything, including storing cards, subscriptions, and direct payouts to their bank account. Meticulously designed APIs and functionality help users create the best possible product for their users.

Stripe Connect provides a powerful API and other tools needed to accept payments, as well as onboard, verify, and pay sellers and service providers. Users can tailor integration in various ways.

Algolia is a powerful search-as-a-service solution, made easy to use with API clients, UI libraries, and pre-built integrations.

AMP is a way to build web pages for static content that render fast.

ASP.net is an open source framework for building web applications and services with .NET and C#.

Bootstrap is a free and open-source front-end framework for designing websites and web applications. It contains HTML and CSS-based design templates for typography, forms, buttons, navigation and other interface components, as well as optional JavaScript extensions.

FlexSlider is a free responsive jQuery slider toolkit that supported in all major browsers with navigation options & touch swipe support.

Font Awesome makes it easy to add vector icons and social logos to their website.

Gravatar is a service for providing globally unique avatars and was created by Tom Preston-Werner. It is owned by Automattic, having integrated it into their WordPress.com blogging platform.

Hypertext Markup Language (HTML) is the standard markup language for documents designed to be displayed in a web browser. It can be assisted by technologies such as Cascading Style Sheets (CSS) and scripting languages such as JavaScript.

Amazon CloudFront is a content delivery web service.

Cloudflare Content Delivery Network (CDN) is a geographically distributed group of servers that ensure fast delivery of Internet content, including HTML pages, JavaScript files, stylesheets, and images.

GitHub is a place to share code with friends, co-workers, classmates, and complete strangers, helping individuals and teams to write faster, better code.

KingSumo is a WordPress plugin that enables users to grow their email list through viral giveaways.

Kinsta is a managed WordPress hosting provider

Medium is a blog-publishing platform.

Pantheon is the WebOps platform where teams build, host, and manage their websites.

Sentry provides open-source error tracking to monitor and respond to bugs and crashes anywhere in users application in real time.

Cloud based storage systems by AWS.

Amazon Web Services (AWS) is a comprehensive, evolving cloud computing platform provided by Amazon that includes a mixture of infrastructure as a service (IaaS), platform as a service (PaaS) and packaged software as a service (SaaS) offerings.

Pusher's APIs & hosted infrastructure make it simple to add interactive features to your apps and scale from one user to billions in seconds

BotDetect CAPTCHA generator is a security solution using Captcha challenges to prevent bots from accessing protected website functionality.

Cloudflare mitigates threats from website scraping to application level attacks e.g. SQL Injection and DDOS Protection without any additional hardware.

reCAPTCHA is a CAPTCHA-like system designed by Google to establish that a computer user is human.

SendinBlue users love its simple and powerful tools for managing email marketing campaigns, automation, transactional emails and SMS messaging. The best value in email marketing.

Chartbeat measures realtime site activity and audience engagement of content with an easy to use dashboard, in-page analytics, historical reporting & more.

Facebook Pixel helps organizations measure customer actions, build audiences and unlock optimisation tools. Facebook pixel is a snippet of JavaScript code that allows you to track visitor activity on your website.

Google Analytics allows users to measure sales & conversions, plus gain fresh insights into how visitors use sites, & how they arrived on site.

Hotjar is a complete website and mobile analytics tool enabling web developers, UI designers, analysts, digital marketers & more, to optimize the usability and conversion rate of their websites.

Mixpanel is a website & mobile analytics tool which aims to help businesses understand visitor behavior by tracking application engagement & interaction in real-time.

Cloudflare protects and accelerates any Internet application online without adding hardware, installing software, or changing a line of code. Internet properties powered by Cloudflare have all traffic routed through its intelligent global network, which gets smarter with each new site added.

Cloudinary allows users to securely upload images to customer's websites and mobile apps.

Google Calendar is an get a button on its browser toolbar that they can easily click to see upcoming events from google calendar, without ever leaving their page. And if they are on sites that have special events encoded, it can click the button to instantly add events to they calendar.

G Suite is a suite of apps from Google which offers a number of tools to communicate and collaborate with colleagues, store files, and manage data.

Trello is a free app that makes working on group projects as easy as using sticky notes on their whiteboard.

CodePen is a web-based HTML, CSS, and JavaScript code editor that enables its users to experiment with code right in the browser.

The Hello Bar is a customizable notification bar that draws visitors to an important call to action on the website

Gmail is a free, advertising-supported email service offered as part of Google's G Suite, with 15GB of storage, color-coded inbox filters and unsend button.

Sarbacane is a complete email marketing & newsletter solution for creating, sending & analyzing campaigns, with a graphic editor for designing newsletters.

Slack is a single workspace that connects users with the people and tools they work with everyday, no matter where they are or what they do.

Whatsapp Business powers businesses communication with customers all over the world, so they can connect with them on WhatsApp in a simple, secure, and reliable way.

Zendesk is an cloud-based customer service software solution trusted by over 40,000 organizations worldwide. Companies such as Groupon, Box, and Zappos are using Zendesk to lower costs, raise productivity, and increase customer satisfaction.

Zoom is a scalable, cloud based video conferencing & web conferencing platform enabling online meetings, webinars, file sharing, group messaging and more.

Google Classroom is a learning management system (LMS) that aims to simplify creating, distributing, and grading assignments and engaging students in learning online or remotely.

Toptal is a marketplace for developers and designers.

Gravity Forms for WordPress is a full featured contact form plugin that features a drag and drop interface, advanced notification routing.

HubSpot Forms are easy to build with drag & drop interface, users can add forms to HubSpot landing pages, or embed them on any website page.

Reliable online membership software for your business.

MemberSpace lets users create online course, training program, or other business idea inside existing Squarespace website.

Mighty Networks enables entrepreneurs, organizations, and companies to create and grow a community-powered brand.

Podia offers tools to you need to independently market, manage and grow your tutoring business.

Woobox provides highly viral, low-cost promotional apps to help brands grow and engage with their fanbase on Facebook, Twitter, and Pinterest.

HubSpot Website Platform is a content management system that enables marketers to build websites personalized for every visitor.

New Relic is used to monitor customer's entire system, including applications, servers, browsers, and network. An ecosystem of plugins let clients monitor customers entire stack.

Segment collects, centralizes, organizes and analyzes all the customer data coming from multiple sources such as apps, websites, and various devices.

UserVoice is a product feedback management software dedicated to enabling businesses to make data-driven product decisions and prioritize feature requests.

WooCommerce is an eCommerce plugin for Wordpress