![Best Shopify Spy Tools in 2026 [Honest Guide + 4,898-Store Data]](/images/blog/best-shopify-spy-tools.webp)
Best Shopify Spy Tools in 2026 [Honest Guide + 4,898-Store Data]
We compared 10 Shopify spy tools and analyzed 4,898 stores to find what actually works. Honest accuracy expectations, real user ratings, and the signals that matter.
10 proven cold email templates for reaching Shopify store owners. Learn the tech-stack personalization framework that achieves 15-25% reply rates vs the 1-5% average.

TL;DR: The average cold email response rate is 1-5%. Top performers hit 15-25% by personalizing based on tech stack gaps - what apps a store is missing. We've included 10 templates below that use this approach, plus the exact personalization framework. Use StoreInspect to find stores with specific gaps and verified contacts, or check any store's tech stack free with Store Inspector.
You did the hard work. You found Shopify stores in your niche. You got the founder's email. You qualified them using the STAMP framework.
Now you're staring at a blank email. What do you actually say?
Most agencies send something like: "Hi {First Name}, I noticed your Shopify store and thought our services might help..." Then they wonder why nobody replies.
I've received hundreds of these. Deleted every single one.
Here's the problem: that email could go to anyone. It shows zero research. Zero understanding of their business. Zero reason to respond.
This one's different. We'll show you exactly what to write - 10 templates that work, the personalization framework behind them, and realistic benchmarks backed by data.
Let's start with the numbers.
The average B2B cold email response rate is 1-5%. That means for every 100 emails, you get 1-5 replies. And most of those are "please remove me from your list."
But here's what's interesting: top performers hit 15-25% response rates. Same channel, same audience, 5x the results. What's the difference?
| Approach | Response Rate | Why |
|---|---|---|
| Generic mass email | 1-3% | No personalization, feels like spam |
| Name + company personalization | 3-5% | Better, but still generic pitch |
| Industry-specific pitch | 5-10% | Shows you understand their space |
| Tech-stack personalization | 15-25% | Shows you researched THIS store |
The gap isn't about subject lines or send times. It's about relevance.
A store owner gets 50 cold emails a week. Yours needs to prove - in the first sentence - that you actually looked at their store and found something specific.
Generic personalization: "I noticed you sell organic skincare products."
Tech-stack personalization: "I saw you're running Klaviyo for email but don't have SMS set up yet. Stores at your traffic level typically see 15-20% revenue lift after adding Attentive."
The second email shows you did real research. That's what gets replies.
Here's the framework.
Every Shopify store has gaps in their tech stack. Our analysis of 8,993 stores found:
| Gap | % of Stores Missing It |
|---|---|
| Reviews app | 66% |
| Upsell/cross-sell tools | 94% |
| Advanced analytics | 93% |
| SMS marketing | 85% |
| TikTok Pixel | 92-96% |
These gaps are your opening. Instead of convincing someone to switch from a competitor, you're pointing out something they don't have at all. That's a much easier conversation.
Not every gap matters equally. A store doing $10k/month doesn't need Gorgias (customer support software). But a store doing $100k/month without proper support is leaving money on the table.
Use traffic tier as a revenue proxy:
| Traffic Tier | Revenue Range | Gaps Worth Mentioning |
|---|---|---|
| Under 10k | $0-50k/mo | Basic email, reviews |
| 10k-50k | $50k-250k/mo | SMS, analytics, loyalty |
| 50k-200k | $250k-1M/mo | Support tools, upsells, attribution |
| 200k+ | $1M+/mo | Enterprise tools, custom solutions |
The gap pitch follows this formula:
I noticed [specific observation about their store].
[Relevant statistic or insight].
[Soft CTA].
Example:
I noticed you're running Klaviyo and Judge.me but don't have an upsell tool yet.
Stores at your traffic level (looks like 30k+ visitors) typically see 10-15% higher average orders after adding Rebuy or Bold.
Worth a quick chat about whether that makes sense for your catalog?
This works because:
For individual stores: Use the free Store Inspector extension. Visit any Shopify store, click the icon, see their apps, theme, and pixels instantly.
At scale: Use StoreInspect to filter thousands of stores by what apps they're missing. Export with verified contacts.
Each template below includes the actual script, an explanation of why it works, when to use it, and the variables you need to customize.
I've organized them by situation - pick the one that matches what you found when researching the store.
These work when a store is missing something obvious. Easiest conversations because you're not asking them to switch - you're pointing out what they don't have.
Use when: Store is missing something obvious for their size.
Subject: Quick question about {store_name}
Hi {first_name},
I was checking out {store_name} and noticed you're not using
{missing_app_category} yet.
That's actually pretty common - [X]% of stores at your stage
are in the same spot. But the ones that add {solution}
typically see {specific_benefit}.
Would it be worth a 15-minute call to see if that makes
sense for {store_name}?
{your_name}
Example filled in:
Hi Sarah,
I was checking out Glow Botanics and noticed you're not
using a reviews app yet.
That's actually pretty common - 66% of stores at your stage
are in the same spot. But the ones that add Judge.me or
Yotpo typically see 15-20% conversion lifts from social proof.
Would it be worth a 15-minute call to see if that makes
sense for Glow Botanics?
Jake
What makes this effective: You're not selling - you're pointing out a gap they probably already know about. The statistic normalizes it ("66% are in the same spot") while creating urgency.
Use when: Store is using a basic tool that has a better alternative.
Subject: Saw you're on {current_tool} - quick thought
Hi {first_name},
I noticed {store_name} is running {current_tool}. Totally
solid for getting started.
Quick question: have you looked at migrating to {better_tool}?
Most stores at your traffic level ({traffic_estimate}) switch
once they hit the limits of {current_tool} - usually around
{pain_point}.
We've helped [X] stores make that transition. If you're
curious what it would look like for {store_name}, happy to
share what we typically see.
{your_name}
Example filled in:
Hi Marcus,
I noticed Urban Threads is running Mailchimp. Totally solid
for getting started.
Quick question: have you looked at migrating to Klaviyo?
Most stores at your traffic level (looks like 40k+) switch
once they hit the limits of Mailchimp - usually around
segmentation and flow complexity.
We've helped 30+ stores make that transition. If you're
curious what it would look like for Urban Threads, happy
to share what we typically see.
Rachel
The psychology here: You're not attacking their current choice - you're acknowledging it was right for the past while opening the door to what's next.
Use when: Store has premium apps but a basic theme (or vice versa).
Subject: Noticed something interesting about {store_name}
Hi {first_name},
I was looking at {store_name} and noticed something
interesting.
You're running {premium_tools} - clearly you invest in
serious tools. But you're still on {basic_element}.
That's usually a quick win. Stores with your stack
typically see {benefit} after upgrading {basic_element}.
Would you be open to a quick audit? No strings - just
curious if there's an opportunity here.
{your_name}
Example filled in:
Hi David,
I was looking at Peak Performance Gear and noticed
something interesting.
You're running Klaviyo, Gorgias, and Triple Whale -
clearly you invest in serious tools. But you're still
on the Dawn theme.
That's usually a quick win. Stores with your stack
typically see 15-25% conversion lifts after a custom
theme build.
Would you be open to a quick audit? No strings - just
curious if there's an opportunity here.
Alex
Why this converts: You've identified an inconsistency that suggests an oversight, not a deliberate choice. The "no strings" language lowers the barrier to reply.
These work when you've spotted activity signals - they're running ads, they've grown recently, or you have a connection. The hook is what you noticed, not what they're missing.
Use when: You found them through Facebook Ad Library running active campaigns.
Subject: Your {platform} ads caught my attention
Hi {first_name},
I came across {store_name} in the {platform} Ad Library -
looks like you've been running campaigns for a while.
Quick question: are you tracking {specific_metric} on
those campaigns?
I ask because I noticed {observation_about_tracking}.
Most stores spending at your level leave {specific_gap}
on the table.
If you're curious what we typically find in a quick audit,
happy to take a look. Either way, solid creative work.
{your_name}
Example filled in:
Hi Jennifer,
I came across Coastal Living Co in the Meta Ad Library -
looks like you've been running campaigns for a while.
Quick question: are you tracking server-side conversions
on those campaigns? (That's the data that doesn't get
blocked by iOS privacy settings.)
I ask because I noticed you have Meta Pixel but not
Elevar or a similar tool. Most stores spending at your
level lose 20-30% of their conversion data to ad blockers.
If you're curious what we typically find in a quick audit,
happy to take a look. Either way, solid creative work.
Chris
Why this gets replies: Complimenting their ads builds rapport. The technical question shows expertise without being salesy.
Use when: Store appears to have grown recently (new traffic tier, more products, etc.).
Subject: Congrats on the growth at {store_name}
Hi {first_name},
I've been following {store_name} for a while and it looks
like things are taking off. Congrats!
Quick thought: stores at your new stage usually run into
{common_growing_pain}. Have you started thinking about
{solution_category} yet?
Not pitching anything - just curious where you're at.
We work with a lot of brands at similar stages and I
always find the growth challenges interesting.
{your_name}
Why it works: Genuine congratulations + useful insight = conversation starter. The "not pitching" language is honest and disarming.
Use when: You have any shared connection (same investor, same app, same industry event).
Subject: {mutual_connection} + quick question
Hi {first_name},
We're both {shared_connection} - figured I'd reach out.
I work with Shopify stores on {your_service}, and
{store_name} looks like exactly the kind of brand we
help.
Specifically, I noticed {specific_observation}. That's
usually a sign of {insight}.
Would you be open to a quick intro call? If not, no
worries - just thought I'd say hi since we're in
similar circles.
{your_name}
Why it works: Shared connections create instant trust. Even weak connections ("we both use Klaviyo") beat cold outreach.
These are tailored for specific services - dev work, SMS, analytics, subscriptions. Use these if your agency specializes in one area.
Use when: Store has a free/outdated theme but shows revenue signals.
Subject: Quick thought on {store_name}'s site
Hi {first_name},
I was checking out {store_name} and noticed you're on
{theme_name}. That's a solid foundation.
But looking at your traffic ({traffic_tier}) and the
tools you're running ({notable_apps}), you've probably
outgrown it.
Most stores at your stage see {conversion_lift} after
a custom build - mainly from {specific_improvements}.
Would it be worth a conversation about what a redesign
could look like? We can put together a quick mockup if
it makes sense.
{your_name}
Why it works: Compliments the foundation while showing you understand they've grown. The offer to create a mockup shows commitment.
Use when: Store has email marketing but no SMS.
Subject: Adding SMS to {store_name}?
Hi {first_name},
I noticed {store_name} is running {email_tool} - solid
email program.
Quick question: have you considered adding SMS?
I ask because stores with your email setup typically
see {percentage} of their email revenue again from SMS
when they add it. It's basically found money.
If you're curious about what an SMS program would look
like for {store_name}, happy to share some numbers from
similar brands.
{your_name}
The hook: "Found money" is compelling framing. You're not asking them to change anything - just add to what's working.
Use when: Store is running ads but has limited tracking.
Subject: Question about your tracking setup
Hi {first_name},
I was looking at {store_name} and noticed you're running
{pixel_1} and {pixel_2} but don't have {missing_tool}.
That's actually a problem for your ad performance.
Without {missing_tool}, you're probably losing {specific_issue}.
Most stores at your ad spend level see {benefit} after
fixing this. It's usually a quick win.
Would it be helpful if I put together a quick tracking
audit for {store_name}? Takes about 15 minutes and I
can show you exactly what's missing.
{your_name}
Why it works: Framing it as "a problem" creates urgency. The free audit offer demonstrates value before asking for anything.
Use when: Store sells consumables but has no subscription app.
Subject: Subscription idea for {store_name}
Hi {first_name},
I was looking at {store_name}'s catalog - {product_type}
seems like a perfect fit for subscriptions.
Are you using Recharge or Skio yet?
I ask because stores selling consumables typically see
{percentage} of revenue shift to subscription within 6
months of launching. The LTV improvement is significant.
If you've thought about it but haven't pulled the trigger,
happy to share what works for similar brands. If you've
decided against it, I'm curious why - always learning.
{your_name}
Why it works: Shows you understand their product type. The "always learning" close invites a response even if they say no.
Quick tip: To use these templates, you need to know what apps each store is running. The free Store Inspector extension shows you a store's complete tech stack in one click - apps, theme, pixels, and traffic tier.
Your email is worthless if it never gets opened. Here's what works:
| Subject Line | Expected Open Rate | Why It Works |
|---|---|---|
| "Quick question about {store_name}" | 45-55% | Personalized, curiosity gap |
| "Saw something on your site" | 40-50% | Implies specific observation |
| "{Mutual_connection} + quick thought" | 50-60% | Social proof, familiarity |
| "Re: {store_name}" | 35-45% | Implies ongoing conversation |
| "Idea for {store_name}" | 40-50% | Value-forward |
| "{First_name} - 2 min question" | 35-45% | Sets time expectation |
What to avoid:
| Subject Line | Why It Fails |
|---|---|
| "Partnership opportunity" | Generic, sounds like spam |
| "Can I pick your brain?" | Asks for time, gives nothing |
| "Following up" (first email) | Implies prior contact that didn't happen |
| ALL CAPS or excessive punctuation!!! | Spam triggers |
| "FREE" or "discount" | Commercial spam filters |
The test: Would you open this email from a stranger? If not, rewrite it.
Most responses come from follow-ups, not the first email. Studies show that 2-4 follow-ups maximize responses without annoying recipients.
| Day | Goal | |
|---|---|---|
| Day 1 | Initial outreach | Plant the seed |
| Day 3 | Quick bump | Resurface in inbox |
| Day 7 | New angle | Provide additional value |
| Day 14 | Last chance | Clear close |
Hi {first_name},
Just floating this back up - curious if you had a
chance to think about {topic}.
No pressure either way. Let me know if you'd like
to chat or if the timing isn't right.
{your_name}
Hi {first_name},
One more thought on {topic}.
I was looking at {competitor_or_similar_store} and
noticed they're doing {relevant_thing}. Might be
worth considering for {store_name}.
Either way, happy to share what we're seeing in
the space if it's useful.
{your_name}
Hi {first_name},
I'll keep this short - is {topic} something you want
to explore, or should I close this out?
Either answer works. Just don't want to keep
bothering you if the timing isn't right.
{your_name}
After Day 14: Stop. Seriously, stop. If they haven't replied after 4 touches, they're either not interested or it's not the right time. Move on. You can revisit in 3-6 months when circumstances may have changed.
(I know it's tempting to send "just one more" - don't. You'll annoy them and burn the bridge for later.)
Here's exactly what to personalize and where to find the data:
| Variable | Where to Find | Example Usage |
|---|---|---|
| Apps installed | Extension popup | "I noticed you're running Klaviyo and Gorgias" |
| Apps missing | Extension popup | "You don't have a reviews app yet" |
| Theme name | Extension popup | "You're on the Dawn theme" |
| Theme type | Extension popup | "You're still on a free theme" |
| Pixels detected | Extension popup | "You have Meta Pixel but not TikTok" |
| Traffic tier | Extension popup | "Looks like 30k+ monthly visitors" |
| Variable | Where to Find | Example Usage |
|---|---|---|
| Job title | Profile | "As Head of Growth at {company}..." |
| Tenure | Profile | "Congrats on the 2 years at {company}" |
| Previous company | Profile | "I saw you came from {previous}" |
| Shared connections | Connections | "We're both connected to {name}" |
| Recent post | Feed | "Loved your post about {topic}" |
| Variable | Where to Find | Example Usage |
|---|---|---|
| Ad run time | Ad details | "You've been running that creative for 3+ months" |
| Creative style | Ad preview | "Your UGC-style ads are working well" |
| Multiple creatives | Ad count | "I see you're testing 20+ variations" |
| Platform presence | Filters | "You're on Meta but not TikTok yet" |
The best outreach combines 2-3 data sources. Here's an example using Store Inspector data + Facebook Ad Library:
"I noticed you're running Klaviyo and have 6+ pixels set up, but I didn't see any TikTok tracking. Given how many Meta ads you're running, that seems like a gap worth closing."
This level of detail is impossible to fake. It proves you did real research. And it only takes 2-3 minutes to gather when you have the right tools.
Let's set realistic expectations. Here's what the data shows:
| Approach | Response Rate | Meeting Book Rate |
|---|---|---|
| Mass email (no personalization) | 1-2% | 0.1-0.3% |
| Basic personalization (name, company) | 2-4% | 0.3-0.5% |
| Industry personalization | 4-8% | 0.5-1% |
| Tech-stack personalization | 10-20% | 1-3% |
| Referral/warm intro | 20-40% | 3-8% |
Sources: Belkins, Instantly, Digital Bloom
Notice the jump from "basic personalization" to "tech-stack personalization" - that's a 3-5x improvement. This is the gap most agencies miss.
Campaign size matters more than most people realize. The math is simple: more emails means less research per email.
| Campaign Size | Response Rate | Notes |
|---|---|---|
| Under 50 recipients | 5-8% | Highly targeted |
| 50-200 recipients | 3-5% | Sweet spot for agencies |
| 200-1,000 recipients | 2-4% | Quality starts to drop |
| 1,000+ recipients | 1-2% | Mass outreach territory |
Source: Mailforge 2025 study
The sweet spot for most agencies is 50-200 recipients per campaign. Enough volume to test, small enough to personalize properly.
Who you email matters as much as what you say. Different roles respond to different angles.
| Role | Response Rate | Best Approach |
|---|---|---|
| Founder/CEO | 4-6% | Direct value prop |
| CMO/Marketing Head | 5-8% | Marketing-specific insight |
| Ecommerce Manager | 6-10% | Tactical suggestions |
| Operations | 3-5% | Efficiency focus |
C-level executives respond 23% more often than non-C-suite - but they're also harder to reach. Target based on who makes decisions for your service. See our guide on finding Shopify store owner contacts.
| Metric | Average | Good | Excellent |
|---|---|---|---|
| Open rate | 30-40% | 45-55% | 60%+ |
| Response rate | 2-4% | 8-12% | 15%+ |
| Positive response rate | 1-2% | 4-6% | 8%+ |
| Meeting book rate | 0.5-1% | 2-3% | 5%+ |
If you're hitting "good" numbers with tech-stack personalization, you're outperforming 80% of agencies.
These words and phrases increase the chance of landing in spam:
| Avoid | Use Instead |
|---|---|
| "Free" | "Complimentary" or just describe the offer |
| "Guaranteed" | "Typically" or "usually" |
| "Act now" | "When you have time" |
| "Limited time" | No urgency needed |
| "Click here" | Descriptive link text |
| "Dear Sir/Madam" | First name or nothing |
| Multiple exclamation marks!!! | One or none |
There's a line between "did research" and "stalked you." Don't cross it.
| Okay | Creepy |
|---|---|
| "I noticed your store uses Klaviyo" | "I saw you started using Klaviyo on March 3rd" |
| "Looks like you're in the 30k traffic range" | "You had 32,847 visitors last month" |
| "I came across your LinkedIn" | "I saw you went to {college} and live in {city}" |
| "Your Meta ads look strong" | "I've been tracking your ad spend for weeks" |
Rule: Only mention information that's clearly business-relevant.
DTC brands are casual. Enterprise language kills your response rate.
| Enterprise (Bad) | DTC (Good) |
|---|---|
| "I would like to schedule a discovery call" | "Worth a quick chat?" |
| "Please find attached our capabilities deck" | "Happy to share what we typically see" |
| "We provide end-to-end solutions" | "We help stores like yours with {specific thing}" |
| "Synergize your customer acquisition funnel" | "Get more customers" |
New domains get flagged as spam. Before any outreach:
Skipping this step can blacklist your domain permanently. Most email tools like Instantly or Saleshandy have warmup features built in.
5-10% is good. 15%+ is excellent. Average is 2-4%, so anything above 5% means you're doing something right. Tech-stack personalization typically achieves 10-20% for well-targeted campaigns.
3-4 follow-ups over 2 weeks. Most responses come from follow-ups, not the first email. After 4 touches with no response, move on. You can revisit in 3-6 months.
Minimal links, if any. Multiple links trigger spam filters. If you must include one, make it to your homepage or calendar. Never include attachments in cold emails.
Tuesday-Thursday, 9-11am in the recipient's timezone. Avoid Mondays (inbox overflow) and Fridays (weekend mode). Early morning gets you near the top of the inbox.
Use the free Store Inspector extension. Visit any Shopify store, click the icon, and see their complete tech stack - apps, theme, pixels, and traffic tier.
Yes, but efficiently. Use templates as a base, then customize 2-3 elements per email: the specific tech observation, the relevant statistic, and the CTA. Takes 2-3 minutes per email and makes a real difference.
Usually skip them. Convincing someone to switch is harder than filling a gap. Focus on stores that don't have what you sell. Exception: if you have a strong "migration" offer with proof points.
Start with 20-30/day from a new domain, scale to 50-100/day over time. Going higher risks deliverability issues. Quality beats quantity - 50 well-researched emails outperform 500 generic ones.
Yes, always. Sending to invalid emails destroys your sender reputation. Use tools like ZeroBounce or NeverBounce to verify lists before any campaign. Target 95%+ valid rate. See our guide on finding verified contacts.
Short, personalized, and curiosity-inducing. "Quick question about {store_name}" consistently performs well. Avoid generic lines like "Partnership opportunity" that scream mass email.
The difference between 2% and 15% response rates comes down to one thing: relevance.
Generic emails get ignored. Tech-stack personalization gets responses because it proves you did actual research on their specific store.
The framework:
Use these templates as starting points:
| Template | Best For |
|---|---|
| Missing App Pitch | Stores without something obvious |
| Upgrade Pitch | Stores on basic tools ready to level up |
| Tech Mismatch | Premium apps + basic theme (or vice versa) |
| Active Advertiser | Stores running paid ads |
| Growth Congratulations | Recently grown stores |
| Mutual Connection | Any shared connection |
| Dev Agency Pitch | Free theme + revenue signals |
| SMS Expansion | Has email, no SMS |
| Analytics Gap | Ads without proper tracking |
| Subscription Opportunity | Consumables without subscriptions |
Realistic expectations:
| Metric | Target |
|---|---|
| Open rate | 45-55% |
| Response rate | 10-15% |
| Meeting book rate | 2-3% |
These numbers require personalization. Mass email won't get you there.
You now have the templates. You need the targets.
Option 1: Check individual stores
Install the free Store Inspector extension. Visit any Shopify store, click the icon, see their apps, theme, and pixels. Find the gap, write the pitch.
Option 2: Find stores at scale
Use StoreInspect to filter thousands of stores by:
Export with 2-5 verified contacts per store - founders, CMOs, and ecommerce managers ready to pitch.
Browse Stores by Category → | Get the Free Extension →
Related guides:
Search by niche, traffic, and tech stack. Export with verified emails.

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