Twilio gives you the building blocks. Releva is the sales agent.
Twilio gives developers channels, customer data and AI parts to build with. Releva is one agent that sells on your site and brings customers back.
- Checked on Twilio's pages and documentation, 29 September 2026
Twilio is a San Francisco communications company listed on the NYSE. It gives developers APIs for SMS, email, voice and WhatsApp. Twilio Segment, its customer data platform, collects customer data, builds a profile of each customer and sends it to your other tools.
Releva is an autonomous sales agent for B2C stores. It sells on your site with personalized search, recommendations and a catalog chat. It brings customers back by email, push, SMS, Viber and WhatsApp, and builds ad audiences, toward the goal you choose.
Twilio describes its platform as building blocks your team puts together. We found no site search product, and Segment's free Shopify source doesn't collect post-purchase events, per its docs. Releva is a finished agent, ready to switch on: it sells on the site and goes live the same day on Shopify and plug-in platforms.
What changes in your store
Sells on your site, ready to use
- Releva: personalized search as shoppers type, recommendations on every page and a chat that answers from your live catalog.
- Twilio: we found no site search product; its own guide pairs Segment with Algolia. Segment stores up to five recommended items per known customer for your developers to show. Flex Webchat connects shoppers to your service agents.
A finished agent that works toward your goal
- Releva: you choose conversions, bigger baskets or long-term customer value. The agent decides per person on your site, in your messages and in your ad audiences.
- Twilio: its CEO describes the platform as "the building blocks" for customer conversations. Engage journeys follow the conditions your team sets. We found no setting that picks one business goal to optimize per person.
Built for mid-size stores
- Releva: Shopify and plug-in stores go live the same day; other platforms take 3 to 5 business days. One fixed monthly price for your store.
- Twilio: Segment's free Shopify source runs in the browser and doesn't collect post-purchase events. Segment is billed by monthly tracked users, anonymous visitors included, and each SMS or WhatsApp message is billed separately.
Twilio Segment and Releva, row by row
| Twilio Segment | Releva | |
|---|---|---|
| Knowing the shopper | ||
| Customer profiles | Identity-resolved profiles that link anonymous activity to known customers. | One profile per shopper: the ad or search that brought them, site and app activity, chat questions, messages and orders. |
| Predictions | Likelihood to buy and to churn, and predicted spend over the next 120 days for customers with two or more purchases. Its docs say predictions work best above 100,000 average monthly users. | Next-basket prediction in every product block, and the goal you choose, including future lifetime value. |
| Recommendations | Up to 5 recommended items on each known customer's profile, for up to 2 million customers. | 16 named recommendation algorithms, including next-basket prediction, with boost, bury, include and exclude rules on any product attribute. |
| On your site | ||
| Site search | We found no site search product. Twilio's own guide pairs Segment with Algolia. | Personalized search as you type, ranked for each visitor. |
| Chat | Flex Webchat connects shoppers to agents in the Flex contact center. Its AI tools connect an AI agent you build. | Answers from your live catalog and documents in your store's languages, takes photos and builds the basket. |
| Personalization | Built by your team through the Profile API, which is server-side only. | Recommendations on every page and banners, chosen for each visitor. |
| Deciding and proving | ||
| How it decides | Engage journeys follow the conditions and splits your team sets. | You choose the goal, and it decides per person within your rules. |
| Tests | SendGrid A/B tests pick the winner by open rate or click rate. | Self-learning tests on every placement, judged against your goal. |
| Holdout | A randomized split in an Engage journey can hold out a control group. | A holdout group of any size, set up automatically on any part of the agent. |
| Revenue reports | Journeys analytics count users who enter and complete a journey. We found no revenue report in Journeys or in SendGrid campaign stats. | Orders in your store, counted once, with the clicks before them. |
| After the visit | ||
| Channels | SMS, MMS, RCS, WhatsApp, Facebook Messenger, voice and email through SendGrid. Its push notifications API has been in private beta since May 2026. | Email on your domain, web and app push, SMS, Viber, WhatsApp, in-app messages and an app inbox. |
| Loyalty | We found no loyalty product. Its guide pairs Segment with Voucherify. | Points, vouchers from your own codes and a personal loyalty page. |
| Ad audiences | Segment syncs audiences to Meta, Google Ads and TikTok. | Value-based audiences for Meta, Google and TikTok. Server-side purchase events for Meta and Google. |
| Setup and price | ||
| Platforms | A free Shopify source in the browser, without post-purchase events. Its WooCommerce source sends data to a warehouse only. We found no Magento, Gomag or MerchantPro source. | Shopify and plug-in platforms the same day. Other platforms in 3 to 5 business days. |
| Price | Segment Connections from $120 a month for 10,000 monthly tracked users, anonymous visitors included. Unify and Engage are priced by sales. Messages are billed one by one, for example $0.1466 per SMS segment to Bulgaria. | A fixed monthly price for your store, quoted after a 30-minute call. |
Twilio details come from its public pages and documentation, checked on 29 September 2026: home page, customer data platform, predictions, recommended items, Profile API, site search guide, Flex Webchat, journey steps, SendGrid A/B tests, messaging channels, Shopify source, Segment pricing and SMS pricing for Bulgaria. "We found no" means we searched its site and documentation and found no such feature. Releva details come from the Releva documentation. Twilio is a trademark of its owner; Releva is not affiliated with it. Out of date? Tell us at info@releva.ai.
Measured against a baseline, in your own orders
Every number Releva publishes was read in a store's own orders against a baseline: a controlled A/B test, a switch-off test or a before-and-after. None credits an order just because a message was received. In one of them, a Singapore womenswear brand on Shopify ran Releva's emails against a replica of its Klaviyo logic and saw 96% more revenue per recipient in week one. The case studies show each test with its period and comparison.
Your store gets the same test. It starts with 30 minutes with your store open. Then you install the agent on Shopify, Gomag or MerchantPro, or add the script to any web store, and pick the first job: search and recommendations on your site, or one flow next to your current tool. A holdout group is set automatically, and after 30 days you compare the orders. How it decides explains the holdout.
Questions about Releva and Twilio Segment
What is Twilio Segment?
Twilio Segment is the customer data platform of Twilio, a San Francisco communications company listed on the NYSE. Segment collects customer data, builds a profile of each customer and sends it to your other tools. Twilio also sells APIs for SMS, email through SendGrid, voice and WhatsApp (29 September 2026).
What is the main difference between Releva and Twilio Segment?
Twilio gives your developers building blocks: customer data, channels and tools for an AI agent you build. Releva is a finished sales agent. It sells on your site with search, recommendations and a catalog chat. It brings customers back on every channel, and works toward the goal you choose.
Is Twilio Segment an alternative to Releva?
Partly. Segment collects customer data and sends it to other tools. Releva keeps its own memory of each shopper and uses it to sell on your site and in your messages. Choose Segment if you want a data platform for your team to build on. Choose Releva if you want the selling done.
Do I need developers to run Releva?
Not on Shopify or platforms with a plug-in, where it goes live the same day. Other platforms take 3 to 5 business days.
Which one has holdout groups?
Both. In Twilio Engage your team adds a randomized split to a journey. Releva sets up holdout groups of any size automatically, on any part of the agent, and shows the orders it added.
I want to build my own AI agent. Which fits?
Twilio is built for that. It gives developers the channels and tools to connect an AI agent they build. Releva is a finished agent for store sales, with search, recommendations, chat and messages ready to use.
What are the main alternatives to Twilio Segment for an online store?
Stores compare customer data platforms such as Segment, Bloomreach and Insider One, or email and SMS platforms such as Klaviyo and Omnisend. If you want one agent that sells on your site and brings customers back, compare Releva.
How is Releva priced?
A fixed monthly price for your store, quoted after a 30-minute call. It doesn't depend on how many features you use or how many chats the agent answers.
See what your shoppers would see
Thirty minutes, with your store open. We'll show you what the agent would rank, recommend and send, and how a holdout would read it.
Book 30 minutes
You'll talk to one of us.