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5 Ways to Grow Your Email List Fast | Privy

Popup-driven email list growth strategies comparing popup types, placement, and triggers for Shopify stores.

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Sarah Mitchell

Certified Shopify Expert · Google Analytics Certified · 8+ years in e-commerce

5 Ways to Grow Your Email List Fast | Privy

5 Ways to Grow Your Email List Fast on Shopify With Popups

Shopify merchants already know email is their highest-ROI channel, but most stores still leave list growth to a single footer form. Popups—when done thoughtfully—can easily 3–5x your capture rate without hurting the shopping experience. Below are five popup-driven plays that pair timing, placement, and incentive to grow your list fast while keeping your brand intact.

Why popups still win for email marketing on Shopify

Email is one of the few channels you own end-to-end, and Shopify’s own research shows incentives plus strategic forms lift signups dramatically (Shopify). Popups remain the fastest way to present the right offer at the right moment, especially when you segment by traffic source, cart status, and device. Pairing them with smart triggers and testing is core to modern email marketing on Shopify, and tools like Revenue Boost make that execution simple with spin-to-win, flash sale, and exit-intent formats.

1) Lead with a high-intent welcome popup

What it is: A first-visit popup that trades a clear benefit (e.g., 10% off, free shipping, or a gift-with-purchase) for an email—and optionally SMS.

Where to place it: Center-screen for desktop; slide-in or bottom-sheet for mobile to avoid blocking the browsing flow.

When to trigger: After 6–10 seconds on site or after the user scrolls 40–60%. This catches engaged visitors without ambushing bounce-prone traffic.

Why it works: Visitors who pause to scroll or spend a few seconds are expressing intent. Shopify reports that tying an incentive to a simple, branded form materially lifts conversions (Shopify).

How to build it:

  • Use a two-step popup: page one sells the offer, page two collects the email (and optionally SMS). Two-step flows reduce friction and feel less demanding.
  • Keep fields to email only; ask for SMS or preferences on the second screen or post-submit.
  • A/B test the headline and incentive size with a tool that supports fast testing, like Revenue Boost, so you can stop guessing which offer pulls more signups.

Shopify fit: Welcome popups pair well with seasonal offers. If you’re running a “Back to School” promo, a targeted welcome popup keeps the campaign front and center for every new visitor.

2) Offer gated value with spin-to-win

What it is: A gamified popup that lets shoppers spin for a reward—discount tiers, free shipping, or a gift with minimum spend.

Where to place it: Keep the wheel anchored mid-screen but allow a dismissible option. On mobile, use a lighter-weight wheel or mini-modal to avoid jarring transitions.

When to trigger: After scroll depth or 2nd pageview. Avoid firing instantly; you want the visitor engaged enough to feel the wheel is a perk, not a gimmick.

Why it works: Gamification can double opt-in rates for cold traffic because the perceived value of “winning” is higher than a standard discount (Klaviyo). Privy’s data also shows merchants using popups strategically can grow lists up to 5x with the right timing and targeting (Privy).

How to build it:

  • Cap the biggest prize; most spins should land on your target margin-safe offer (e.g., 10–15% off or free shipping over $75).
  • Pair the wheel with a minimum purchase requirement to protect AOV.
  • Add a short timer to the claim page to encourage checkout without feeling pushy.

Shopify fit: Spin-to-win shines on paid social traffic where shoppers are browsing, not buying. It gives them a reason to stick and helps you capture emails before retargeting gets expensive.

3) Deploy exit-intent popups that feel helpful, not desperate

What it is: A popup triggered when desktop users move toward the tab close or back button, or when mobile users show inactivity/scroll reversal.

Where to place it: Center-screen for desktop; bottom slide-up for mobile to stay thumb-friendly.

When to trigger: Only on exit intent for desktop; on mobile use a 10–15 second inactivity trigger to avoid accidental fires.

Why it works: Exit-intent converts abandoning traffic you already paid for. Mailchimp’s 5 T’s framework emphasizes timing and targeting as keys to list growth (Mailchimp), and exit-intent nails both.

How to build it:

  • Make the offer different from your welcome deal: free shipping threshold, a small bonus, or “save your cart” reminder.
  • Keep copy reassuring: “Grab your code and we’ll email it so you don’t lose it.”
  • Connect the form to your cart object so you can trigger a cart-recovery email. For examples of recovery flows, see these cart abandonment popup flows.

Shopify fit: High-intent product pages and cart/checkout-adjacent pages are prime spots. Exit-intent popups there help you salvage nearly-ready buyers without interrupting shoppers still browsing collections.

4) Time-limited flash sale popups for returning visitors

What it is: A popup that announces a short promo (4–24 hours) only to return visitors or email subscribers who haven’t purchased recently.

Where to place it: Top or bottom bar on mobile; small modal or side panel on desktop to avoid blocking product imagery.

When to trigger: On 2nd session or after a shopper hits a key page (e.g., “Sale” or a hero collection) twice.

Why it works: Urgency is a conversion lever, but it also boosts signups because shoppers want to lock in the code by email. Omnisend highlights sustainable list growth comes from clear value exchanges that feel owned, not algorithm-dependent (Omnisend).

How to build it:

  • Use a countdown timer synced to your ecommerce platform so the timer matches the actual promo.
  • For email capture, promise delivery of the code via inbox to anchor the value of subscribing.
  • A/B test “% off vs. $$ off” and include a minimum purchase to protect margin.

Shopify fit: If you’re running weekend drops or limited runs, flash sale popups let you collect emails while informing high-intent browsers. Pair with Revenue Boost’s A/B testing to settle the best incentive fast.

Want a deeper list of popup patterns that protect brand feel? Check this breakdown of email capture patterns customers don’t hate.

5) Post-purchase popups for referrals and VIP growth

What it is: A popup (or slide-in) that appears on the order status page or shortly after purchase, inviting customers to join a VIP list, referral program, or early access list.

Where to place it: On the thank-you page or inside your post-purchase page if you use Shopify’s checkout extensibility. Use a subtle slide-in to avoid disrupting order confirmation.

When to trigger: After order confirmation loads; delay 3–5 seconds to let the buyer absorb the receipt.

Why it works: Buyers are at peak trust post-purchase. Offering early access or points for referrals captures high-quality subscribers who engage and buy again. Klaviyo notes that value-rich offers attract higher-value subscribers who stick around (Klaviyo).

How to build it:

  • Offer VIP perks: early access to drops, double points for the next purchase, or a friends-and-family code delivered via email.
  • Keep it minimal—email only. You already have their name and purchase data.
  • Tag these subscribers in your ESP so you can send tailored replenishment or launch emails.

Shopify fit: Great for brands with repeatable purchases—beauty, supplements, apparel basics. It keeps customers in your owned channels instead of relying on paid reacquisition.

Choosing the right popup type for your Shopify store

  • Welcome modal: Best for first-time traffic and list growth volume. Use after a short delay or scroll.
  • Spin-to-win: Best for cold traffic from ads; use gamification and margin-safe prizes.
  • Exit-intent: Best for abandoning cart and high-intent product page visitors; use a distinct offer.
  • Flash sale bar/popup: Best for returning visitors and seasonal pushes; combine with timers.
  • Post-purchase slide-in: Best for VIP and referral growth; keep it light and value-first.

Placement and trigger best practices

  • Delay wisely: 6–10 seconds or 40–60% scroll finds engaged visitors without tanking UX.
  • Device-aware: Use center modals on desktop; slide-ins or bottom sheets on mobile to stay thumb-friendly.
  • Segment by source: Show stronger incentives to paid social traffic; keep smaller offers for organic/loyal visitors.
  • Respect frequency: Cap impressions (e.g., once per session) and use cookies so you don’t annoy repeat visitors.
  • Comply globally: Use GDPR-friendly consent language and optional checkboxes for EU/UK traffic. Revenue Boost and similar tools provide built-in compliance toggles.

Testing your way to faster list growth

Testing unlocks compounding gains. Here’s a simple loop:

  1. Hypothesis: “A 12% off welcome offer outperforms free shipping.”
  2. A/B test: Split traffic 50/50 using your popup tool.
  3. Measure: Signups, claimed-to-purchase rate, AOV of captured cohort.
  4. Roll forward: Keep the winner, test the next lever (placement, trigger, creative).

Mailchimp’s emphasis on testing and tracking backs this disciplined approach (Mailchimp). Keep each test simple so you learn fast and avoid confounding results.

For a deeper dive on optimizing popup conversion, see these Shopify popup best practices with examples and copy templates.

Example Shopify popup stack for rapid growth

  • Homepage: Welcome popup after 8 seconds with 10% off; email + SMS optional.
  • Collection/product pages: Exit-intent with “Save your cart, get free shipping over $75.”
  • Blog/organic traffic: Slide-in after 50% scroll offering style guides or size charts via email.
  • Paid social landing pages: Spin-to-win after 2nd pageview; rewards capped at 15% off.
  • Thank-you page: Post-purchase slide-in for VIP early access list.

Run these with A/B testing and frequency caps. This balanced stack covers awareness, intent, and loyalty without smothering visitors.

Copy and design tips that respect your brand

  • Lead with value: “Unlock 10% off your first order” beats generic “Join our newsletter.”
  • Show social proof: Add a short line like “Trusted by 200k+ subscribers” if accurate.
  • Keep forms lean: Email first, SMS optional; avoid asking for birthdays or preferences up front.
  • Match the theme: Align typography and colors with your Shopify theme; subtle motion beats aggressive animations.
  • Use scarcity honestly: Real timers and limited codes build trust; fake urgency erodes it.

For more guidance on selecting the right toolset, explore this roundup of Shopify popup apps for 2025 to compare features like exit-intent accuracy, A/B testing depth, and GDPR controls.

Deliverability and list health (don’t skip this)

Rapid list growth only helps if your emails land in the inbox:

  • Double opt-in selectively: For geos with stricter privacy expectations, double opt-in keeps list quality high.
  • Clean regularly: Remove chronically inactive subscribers; better engagement keeps inbox placement strong.
  • Tag by source: Knowing whether a subscriber came from spin-to-win vs. exit-intent helps you tailor flows and offers.
  • Send a fast welcome: Trigger a welcome email within minutes to set expectations and deliver the promised incentive.

FAQ

How many popups are too many? One primary popup plus contextual variants (exit-intent, post-purchase) is usually enough. Cap frequency per session and avoid stacking two modals back-to-back.

Do spin-to-win popups hurt brand perception? Not if prizes are on-brand and the design matches your store. Keep the rewards reasonable and set minimum purchase thresholds.

What’s the best timing for a welcome popup on Shopify? Start with 6–10 seconds or 40–60% scroll. If bounce is high, delay more; if engagement is low, test a slightly earlier trigger.

Should I collect SMS with email? Make SMS optional. Email remains the core owned channel; SMS can be offered on the second step or via a post-submit prompt.

Bringing it together

Popups work when they’re purposeful: right offer, right time, right visitor. Start with a high-intent welcome, layer in spin-to-win for cold traffic, add exit-intent for abandoners, flash sale bars for returners, and post-purchase VIP capture. Test each lever, respect the shopping experience, and you’ll see email list growth that compounds.

If you want a single tool to launch all five strategies with A/B testing, GDPR controls, and templates for Shopify, Revenue Boost can get you live in minutes—worth a trial run on your next campaign.

Tags:email marketing shopify
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About Sarah Mitchell

Certified Shopify Expert · Google Analytics Certified · 8+ years in e-commerce

Sarah is an e-commerce growth specialist with over 8 years of experience helping Shopify merchants scale their businesses. She has worked with 200+ online stores, specializing in conversion optimization and email marketing strategies.

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