RELAIN
Retention marketing through email, SMS, WhatsApp, and direct mail for DTC brands
RELAIN provides retention marketing through email, SMS, WhatsApp, and direct mail for DTC brands. It is listed on Klaviyo's agency directory, where it lists Technical Development & Design, Implementation & Onboarding, Strategy & Consulting and 3 more services for brands with $1M to $500M in annual revenue, on Shopify and Shopify Plus.
Overview
RELAIN is a retention marketing partner for DTC brands. It runs a brand's CRM system across email, SMS, WhatsApp and direct mail, together with loyalty, referral and subscription programs. It aims to turn first purchases into repeat purchases by managing retention as one connected system.
- Built for
- Founder or exec-led DTC brands doing $5M to $100M a year on Shopify and Klaviyo whose customers buy more than once a year, such as beauty, supplements, apparel and consumables.
- Pricing
- Fixed monthly fee with everything in one package and no tiers. The amount depends on the brand's size, product range and existing setup, and is quoted after an audit of the account.
Products
- Email, SMS, WhatsApp and direct mail Runs the channels as one plan, using campaigns and flows.
- Loyalty, referral and subscriptions Sets up loyalty programs, referral programs and subscription models within the same retention logic.
- Data and reporting Reports CLV by cohort, repurchase rate and contribution margin per segment, with weekly reporting.
- Done for you, done with you, or consulting Works with in-house teams as full service, joint work, or consulting only.
Integrations
Buyer notes
- Onboarding starts with five questions and a call booking, then a first call, a Klaviyo audit, a second call, and the start of work.
- Support is listed as 24/7, with weekly reporting.
- Works best with Klaviyo and Shopify; other email platforms are known from migrations.
- Offices in Austin, Texas and Munich, Germany; site available in English and German.
From RELAIN's own site and Shopify App Store listings, as of 2026-10-20.
Services
- Platforms
- Shopify, Shopify Plus
- Brand size
- $1M - $10M, $10M - $30M, $30M - $100M, $100M - $500M annual revenue
- Regions
- North America, Europe
- Industries
- Retail: Subscriptions & Digital Goods, Retail: Home & Electronics, Retail: Food & Beverage, Retail: Apparel & Beauty, Retail: Outdoor & Automotive
As listed on Klaviyo's agency directory, 2026-11-03.
What services does RELAIN offer?
On Klaviyo's agency directory, RELAIN lists Technical Development & Design, Implementation & Onboarding, Strategy & Consulting, Data & Analytics, AI Strategy & Automation and Omnichannel Messaging. It says it works with brands with $1M to $500M in annual revenue, in North America and Europe. Platforms: Shopify and Shopify Plus.
How much does RELAIN cost?
Fixed monthly fee with everything in one package and no tiers. The amount depends on the brand's size, product range and existing setup, and is quoted after an audit of the account.