Compare Chati vs. Happilee

Use the language you already love to prototype ideas quickly, develop production-ready communications applications, and run serverless applications on one API-powered platform. Twilio is a single fully-programmable platform with flexible APIs for any channel, built-in intelligence, and global infrastructure to support you at scale. Quickly integrate powerful APIs to start building solutions for SMS and WhatsApp messaging, voice, video, and email. Browse documentation and SDKs in multiple coding languages, including Ruby, Python, PHP, Node.js, java, and C#, or jumpstart your first project with our open source code templates to quickly build production-ready communications apps. Consult our community of over 9 million developers for guidance and inspiration on your next project. Sign up and start building today.

Aircall transforms business communications with an intelligent, cloud-based phone system built for modern sales and customer support. More than just a calling tool, it provides an all-in-one hub that connects phone, SMS, and WhatsApp conversations in a single platform. Its AI Assist Pro feature delivers real-time coaching during calls and simplifies follow-up, enabling reps to sell smarter and resolve support issues faster. Teams can leverage advanced capabilities like call routing, IVR, analytics dashboards, and power dialers to maximize efficiency. With integrations across Salesforce, HubSpot, Zendesk, Intercom, Shopify, and 100+ other apps, Aircall seamlessly fits into existing workflows. Businesses benefit from reliable call quality, international number coverage, and scalable features that grow with their needs. Customer stories highlight improvements such as a 4% increase in CSAT scores and the ability to process 25,000+ calls per month with stability and ease. Aircall makes customer conversations more personal, productive, and impactful—without the complexity of traditional systems.

Klaviyo empowers businesses to create smarter digital relationships by transforming customer data into meaningful, impactful experiences. From email and SMS to web interactions and reviews, Klaviyo makes it easy for B2C brands to engage customers at every touchpoint. Trusted by over 157,000 businesses, Klaviyo helps drive faster, more efficient revenue growth. Klaviyo’s 350+ integrations making getting started easy for marketers. Some key features of the platform include predictive analytics, AI automation, optimized templates, A/B testing, and intuitive segmentation and email flows to ensure marketers are reaching their audience with the right message at the right time. The solution also supports integration with payment processing and point of sale (POS) software solutions, such as Magento, Shopify, and WooCommerce.

Xengo is a user-friendly tool that lets you create smart shortened URLs and dynamic QR codes with detailed real-time analytics and click notifications. The platform is perfect for businesses, startups, and agencies looking to track their links’ performance across different devices and locations. With Xengo’s simple dashboard, you can manage and edit links and QR codes at any time, updating them without the need for new assets. Integration with real-time notifications via Slack, Email, and more ensures you never miss an interaction, providing instant insights to help improve your marketing strategies.

Twilio's Messaging API is an essential tool for businesses looking to integrate messaging capabilities into their applications with ease. It provides a reliable RESTful API that facilitates the sending and receiving of SMS, MMS, and WhatsApp messages on a global scale. This API allows businesses to automate and scale their communications, ensuring that messages reach customers through their preferred channels. With support for various sender types, such as long codes, short codes, toll-free numbers, and alphanumeric sender IDs, Twilio offers flexibility in message delivery. The Messaging Services feature further enhances this by enabling the grouping of global senders and intelligent sending, which automates sender selection and manages compliance regulations. Additionally, the API supports inbound webhooks, allowing businesses to handle responses programmatically and engage in two-way conversations with customers. Twilio's comprehensive documentation, sandbox testing, and robust support empower businesses to create efficient, scalable, and compliant messaging solutions that enhance customer engagement and drive conversions.

Referral Factory is the fastest way to launch your referral program or your affiliate program. With our no-code referral program software, you can: 👉 Build your customer referral program in seconds using our AI-powered referral program generator. 👉 Create a fully branded, high-converting affiliate program in just a few clicks 👉 Access our affiliate network of 100 000+ verified affiliates ready to promote your business, at no extra cost. 👉 Integrate with over 3000 apps, including HubSpot, Salesforce, Stripe, Pipedrive, Intercom, Zoho, Zapier, Make and more. 👉 Use webhooks or our API to build a referral program that integrates with your custom-built solutions so you can use the unique workflows you already have. 👉 Promote your program via no-code widgets, pop-ups, QR codes, and automated email campaigns. 👉 Access to 200+ referral rewards and incentives. Vouchers, digital cash cards, PayPal payouts, or donations. Plus, you can issue your own custom rewards through Zapier, Make or a webhook. 👉 View advanced referral analytics to track the ROI of your referral program in real time. Referral Factory is fully GDPR compliant and is SOC 2 and ISO 27001 compliant giving you Enterprise level security on all plans. You also have the option to host your own data for an additional charge. Our referral software is fast, secure, and easy to use. Plans range from $95 to $1 000+ per month, catering to businesses of all sizes. All plans include 24/7 support to help you build, promote, and integrate your referral program with dedicated support on Pro and Enterprise plans. 🏆 Voted the #1 Referral Software by Influencer Marketing Hub and Growth Marketing Pro 🏆

Squaretalk is a powerful contact center solution that transforms how modern sales teams connect with prospects and customers, convert sales opportunities, and grow their operations. It offers AI Voice Agents, omnichannel communication (including voice and WhatsApp messaging), powerful call-handling features, automated transcripts, sentiment analysis, contact management, customizable workflows, advanced reporting, enterprise-grade security, and affordable scalability without additional complexity or costs.. With local numbers in over 150 popular and niche destinations, we enable businesses of all sizes to establish and maintain a local presence, build trust, support their global expansion, and shorten sales cycles. Discover how Squaretalk’s cloud contact center platform can enhance your team’s connection rates and performance.

TextUs is the best text messaging service provider for businesses looking to have real-time conversations, with candidates, leads, employees, and customers. Text messaging is one the most engaging and engaging ways to communicate directly with customers, candidates for jobs, employees, and leads. Two-way, 1:1 messaging encourages engagement and response. Teams get 10x more responses to text messages than email and phone. Business text messaging is now a viable medium of communication that is more effective than traditional media. TextUs is designed to look like the familiar SMS Inbox. It allows users to manage contacts, conversations, campaigns, and other information. You can use the TextUs web application from your desktop or the Chrome extension to your CRM or ATS. Use the mobile app to send and respond on-the-go.

Knak is the enterprise-grade, no-code solution that transforms how marketing teams build emails and landing pages — without relying on developers or agencies. With a robust modular design system, real-time collaboration, and native integrations with platforms like Marketo, SFMC, and Eloqua, Knak eliminates production bottlenecks while preserving brand governance. Empower your team to deliver high-performance assets quickly, securely, and at scale — no code required. Trusted by global brands to streamline campaign execution and accelerate time-to-market.

iPaper is a premium SaaS solution that allows you to convert your printed leaflets and catalogs into fully interactive shoppable flipbooks that can be pushed across all your digital channels. You can embed and share your flipbooks across all marketing channels and your website. Our platform automatically makes sure that it looks good in any scale and on any device. iPaper’s main features are all focused on enabling you to drive traffic and increase sales. You can create a shopping basket inside your flipbook and provide a way for your visitors to buy directly from within the catalog. You can also enrich your flipbooks with images, videos, product links, forms, newstickers, pop-ups and call-to-actions to make them more engaging for visitors and guide them further along their buying journey. However, adding or editing these enrichments manually can be very time consuming. With iPaper this can be done automatically with enrichment automation. Getting started with iPaper is much more than just creating a catalog that looks good. It is built to help retailers create an automated interactive marketing channel that will drive traffic and inspire shoppers to buy.