Author
Patrick Driscoll, Co-Founder & CEO
Published Date
May 8, 2026
Gruns scaled to over $100 million in revenue at a pace that turned heads across the e-commerce industry. The obvious story is the paid media, the influencer distribution, the social proof machine. But that kind of scaling at a unit-economic level requires something working hard in the background: a retention system that turns a $47.99 first order into months of recurring subscription revenue.
TVG's team purchased Gruns and mapped their complete post-subscription email journey. Every trigger. Every email. Every piece of timing across the first 12 days after a customer subscribes. What we found is a 16-email flow that treats the period between purchase and product arrival as a retention campaign, not a formality.
This is the full breakdown. Every phase of the flow, what each email is designed to do, and three specific lessons your brand can copy regardless of whether you sell gummies, tools, apparel, or consumables. If you run a subscription program and you are not doing this, you are leaving meaningful LTV on the table every month.
Watch the Full Breakdown on YouTube
Patrick walks through the full 16-email flow screen by screen, with commentary on every design decision Gruns made and what to replicate for your brand.
Why the Post-Subscription Flow Is Your Most Important Klaviyo Asset
Most e-commerce brands treat post-purchase email as logistics communication. Confirmation, tracking, delivery. Then silence. That approach is expensive because every subscriber you lose in the first 30 days is a full CAC you paid that returned nothing.
The post-subscription flow is your first real impression as a brand after the transaction is complete. The customer has just committed to a recurring charge. Buyer's remorse is a real psychological phenomenon, and the window between purchase and product arrival is when it peaks. A brand that fills that window with education, excitement, and reinforcement will consistently out-retain a brand that sends three boring automated emails and goes quiet.
The LTV to CAC Connection Gruns can be aggressive on paid acquisition, spending hard to acquire subscribers at scale, because their retention engine converts a $47.99 first order into 4x or more in lifetime value. Every additional month of subscriber retention directly lowers the effective CAC. That is the structural advantage a great post-subscription flow creates: it funds your acquisition by making each acquired customer worth more. |
For brands scaling past seven figures, the math is stark. A subscription brand with a 1x LTV is trapped in a break-even loop. A brand with a 4x LTV can scale aggressively, outbid competitors on CPMs, and still grow profitably. The post-subscription flow is a primary driver of that multiple.
How Gruns Structures the Subscription Offer and Funnel
Before breaking down the email flow, it is worth understanding how Gruns gets so many people into the subscription program in the first place. The offer is deliberately simple and the friction is minimal throughout.
The Offer
Gruns Subscription Offer Structure First order: $47.99 (subscribe and save, 40% off full price). Recurring billing: $79.99/month. Free shipping on first order. 30-day nutrition guarantee. Pause or cancel anytime. The entire offer is communicated in a single clear statement above the fold. |
The offer strips out every reason a customer would hesitate. The 40% first-order discount removes price friction. The pause-or-cancel guarantee removes commitment anxiety. Free two-day shipping removes logistical friction. Every element on the landing page exists to eliminate a specific objection before it forms.
The landing page itself follows a proven structure: social proof from media features, a benefits toggle with icon-driven USPs, a full ingredient breakdown, an us-versus-them comparison, real customer stats, and a UGC wall. Every section answers a question the skeptical buyer has before they know to ask it.
The Billing Cycle Decision
4-Week Billing vs. Monthly Billing: Why It Matters Gruns bills on a 4-week cycle, not a monthly cycle. A monthly subscriber renews 12 times per year. A 4-week subscriber renews 13 times per year. That is an additional full billing cycle extracted from every subscriber annually, with zero additional acquisition cost. At scale with thousands of active subscribers, this one structural decision generates meaningful incremental revenue every year. |
AOV Optimization at Every Step
Gruns upsells throughout the purchase process, not just at checkout. When a customer adds the core product to cart, they are immediately shown a Gruns Kids option, positioned as a natural add-on for parents who are already convinced. The cart page offers a buy-two option and a quarterly billing upgrade (which gives Gruns more cash upfront to fuel acquisition). The checkout page repeats the upsell.
Every step of the purchase funnel is engineered to increase average order value. By the time a customer completes checkout, Gruns has had multiple opportunities to increase the revenue per transaction before a single email is sent.
The Complete 16-Email Flow: Full Timeline
This is the full map of Gruns' post-subscription sequence, from the moment of purchase through day 12. The flow runs 16 emails deep across four distinct phases.
Timing | Type | Primary Job | |
|---|---|---|---|
1 | Immediate | Shopify Transactional | Order confirmation, review order details and savings |
2 | Immediate | Klaviyo Welcome | Meet OG Gruns flavor, set subscription expectations |
3 | Immediate | Klaviyo | Affiliate program invitation, drive referrals from day one |
4 | 10 minutes | Klaviyo | Order received confirmation, remove buyer's remorse |
5 | Under 24 hours | Klaviyo | Shipping label created, product is in motion |
6 | 32 hours | Klaviyo | Order shipped, fast fulfillment reinforced |
7 | 44 hours | Klaviyo | Delivering today, excitement building |
8 | 48 hours | Klaviyo | Delivered, 2-day promise kept, usage introduction |
9 | Day 1 | Klaviyo | Welcome to Day 1, how to use the product, build the habit |
10 | Day 2 | Klaviyo | Habit reinforcement, encouragement, ingredient callouts |
11 | Day 3 | Klaviyo | Day 3 check-in, social proof injection |
12 | Day 4 | Klaviyo | What to expect at 30 / 60 / 90 days, futurecasting |
13 | Day 5 | Klaviyo | More futurecasting, review volume building |
14 | Day 6 | Klaviyo | Congrats Day 6, continued habit reinforcement |
15 | Day 6 | Klaviyo | Leave a review CTA, generate social proof |
16 | Day 12 | Klaviyo | Typeform NPS survey, referral likelihood score |
Phase 1: Immediate Through 48 Hours, Own the Delivery Experience
Eight emails run in the first 48 hours after purchase. Four are immediate. Then shipping label, shipped, out for delivery, and delivered, each one timed to match exactly where the customer is in the fulfillment journey.
The email immediately after purchase handles a specific psychological job: removing buyer's remorse. The customer just committed to a recurring charge. Email 4, sent 10 minutes after purchase, confirms the order and reinforces the decision. Gruns does not wait until the product ships to begin this work.
The Generic Transactional Email Trap Most Shopify brands rely entirely on platform-generated transactional emails, the default shipping notifications that look like they came from a logistics company, not a brand. Gruns overlays their own Klaviyo-triggered emails on top of Shopify's transactionals. Each one is on-brand, educational, and emotionally warm. Your customer cannot tell the difference between a Shopify notification and a Klaviyo trigger. What they experience is either a brand that cares about the journey or a brand that treats fulfillment as paperwork. |
The shipping sequence matters for a specific competitive reason: Amazon. Any e-commerce brand competing for repeat purchases is implicitly competing with Amazon's fulfillment expectations. Gruns met their free two-day shipping promise and confirmed it with a dedicated delivery email within 48 hours. That is not incidental, it is a retention touchpoint that reinforces the brand promise before the product experience begins.
Phase 1, Immediate to 48 Hours: What Each Email Does
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Phase 2: Day 1 Through Day 6, Building the Daily Habit
Once the product arrives, the flow shifts from logistics to habit formation. Days one through six each receive a dedicated email at 7 a.m., timed to coincide with the morning routine when the gummy would naturally be consumed.
The structure of each email is deliberate. Day one introduces the habit and explains how to use the product. Day two delivers encouragement and ingredient education. Day three adds social proof from other customers. Day four futurecasts the 30, 60, and 90-day benefits. Day five continues the futurecasting with additional reviews. Day six marks the milestone and reinforces progress.
Why Futurecasting Is Critical for Supplement Subscriptions A gummy supplement does not produce immediate, obvious results. If a subscriber reaches day seven without understanding what to expect and when to expect it, the natural response is to question whether it is working, and questioning is the first step toward cancellation. Gruns' futurecasting emails (Days 4 and 5) explicitly tell the subscriber: in month one, expect better digestion and reduced sugar cravings. In month two, better stress response. In month three, optimal energy levels. The message is clear: you need to stay subscribed for 90 days to get the full benefit. They have just given the subscriber a reason to stay through the next three billing cycles. |
Social proof inside a post-subscription flow serves a function that surprises most brands. Reviews are typically associated with acquisition, convincing a cold audience to buy. Gruns uses reviews post-purchase to retain subscribers who have already bought. The logic is sound: if you have made bold product claims and the subscriber is waiting to see results, showing them that thousands of other customers experienced exactly what you promised is a retention mechanism, not just a sales tool.
Phase 2, Day 1 to Day 6: The Habit-Building Sequence
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Phase 3: The Post-Purchase Loop
Two final emails close out the flow. Day 6 includes a review request alongside the habit-reinforcement email. Day 12 delivers a Typeform net promoter score survey.
These two emails serve a compounding function. Reviews from satisfied early subscribers feed back into the acquisition funnel: the social proof wall on the landing page, the testimonials in the ad creative, the star rating in paid media assets. Each review a subscriber leaves is a piece of future acquisition creative being generated at no additional cost.
The NPS survey at Day 12 tells Gruns something the acquisition funnel cannot: whether the subscriber is likely to refer a friend at the specific moment when first-use impressions are forming. A high NPS score at Day 12 is predictive of long-term retention. A low NPS score is an early warning signal that can trigger a winback or intervention sequence before the subscriber cancels.
The Post-Purchase Loop: What to Build
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Three Lessons Your Brand Can Copy Right Now
Not every brand is Gruns, and not every product is a consumable supplement. But the structural principles behind this flow apply to any subscription model. Here is what to take and implement.
LESSON 1 Own the delivery experience Every email from purchase to delivery should feel like it came from your brand, not your logistics provider. Use Klaviyo triggers for shipping updates that match your brand voice. Narrate the journey from order placement to doorstep delivery as a sequence of touchpoints that build excitement and reduce buyer's remorse. Minimum viable version: At minimum, replace your default Shopify shipping notification with a branded Klaviyo email that reflects your product and your voice. This alone separates you from 90% of e-commerce brands. |
LESSON 2 Build the daily habit in the first seven days Whether you sell supplements, skincare, tools, or consumables, the first week after delivery is when usage habits form or fail to form. A subscriber who does not use the product in week one is at extreme churn risk. Design a day-by-day email sequence that teaches usage, delivers education, and provides social proof for why the product works over time. Minimum viable version: Even a three-email sequence for Days 1, 3, and 7, each with a specific usage tip and one piece of social proof, will meaningfully improve first-week engagement compared to no follow-up. |
LESSON 3 Create post-purchase loops A subscriber who leaves a review, refers a friend, and completes an NPS survey is far less likely to cancel than a subscriber who passively receives their product. Each of these actions creates a micro-commitment that builds attachment to the brand. Reviews generate acquisition content. Referrals lower net CAC. NPS data surfaces at-risk subscribers before they churn. Minimum viable version: Add one review request email at Day 7 and one NPS survey at Day 14. These two additions can be live within a week and both compound in value over time. |
Audit Your Own Post-Subscription Flow Against This Standard
Before building anything new, run your current flow through this checklist. Most brands find gaps in at least two of these areas.
Gap in Your Current Flow | What to Build |
|---|---|
No branded delivery update emails (using default Shopify only) | Build 4 Klaviyo triggers: label created, shipped, out for delivery, delivered. Brand each one. |
No buyer's remorse email in first 10 minutes after purchase | Add a single Klaviyo email timed 10 minutes post-purchase that confirms the order and reinforces the purchase decision. |
No habit-building sequence in first 7 days after delivery | Build a Day 1, Day 3, and Day 7 email sequence with specific usage education and social proof. |
No futurecasting for products with delayed results (supplements, skincare) | Add a Day 4 or Day 5 email explicitly mapping what to expect at 30, 60, and 90 days. Give the subscriber a timeline to stay committed to. |
No review request in the flow | Add a review request email at Day 6 to Day 8, timed to the first week of product use. |
No NPS or referral touchpoint | Add a Typeform or Klaviyo survey at Day 12 to Day 14. Use the data to identify at-risk subscribers before the first renewal. |
No affiliate or referral invite | Send an affiliate or referral invite in the immediate post-purchase window while enthusiasm is highest. |
Why Retention Is the Real Lever Behind Aggressive Acquisition
The most important insight from studying Gruns' flow is not about email design. It is about the economics that a strong retention system enables.
Gruns can run aggressive paid media, accept higher CPMs, and outspend competitors on acquisition because their post-subscription flow converts first-time subscribers into customers worth 3x to 4x their initial order value. Every dollar invested in the retention system multiplies the return on every dollar spent on acquisition.
For most e-commerce subscription brands, the retention system is a growth ceiling that is hiding in plain sight. The brands that scale fastest are the ones that fix retention before they scale acquisition, because retention is what determines whether scaled acquisition creates profit or just creates scale.
The Retention-First Growth Model Before increasing paid media spend, audit your post-subscription LTV. If your LTV:CAC ratio is below 3:1 over 6 months, the acquisition budget is outrunning the retention system. Build the retention infrastructure first, the post-subscription flow, the habit-building sequence, the post-purchase loops, then scale acquisition against the higher LTV that infrastructure creates. |
Watch the Full Flow Breakdown
Patrick walks through Gruns' complete 16-email flow screen by screen in the video below, with commentary on the specific design decisions behind every email and what each one is engineered to accomplish.
Watch the Full Breakdown on YouTube
Patrick walks through the full 16-email flow screen by screen, with commentary on every design decision Gruns made and what to replicate for your brand.
Get a Free Core Growth Audit Our team will analyze your contribution margin, true CAC, LTV:CAC ratio, retention system, and MER -- and hand you a personalized roadmap showing exactly where you're bleeding, underleveraged, and ready to scale. No pitch. Just the numbers. |
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About TVG
The Visionary Group (TVG) is a full-service e-commerce growth agency helping 7 and 8-figure Shopify brands scale profitably through paid media, creative strategy, email, and analytics. TVG spends and manages millions in Meta ad spend monthly across active brand partners.
Frequently Asked Questions
Q1: What should a post-subscription email flow include?
Q2: How many emails should be in a post-purchase subscription flow?
Q3: How does subscription LTV affect how much you can spend on customer acquisition?
Q4: What is the difference between 4-week billing and monthly billing for subscriptions?
Q5: How do I reduce subscription churn with email marketing?
Q6: How do I set up a post-subscription email flow in Klaviyo?
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