Personal links
One link per person. Know exactly who clicked.
Sending an offer, a proposal or an invite to a list? Stackly gives every contact their own short link, so you see who opened it, when and how often — and who to follow up with.
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Who opened it
Each person's link shows whether they clicked, when they first opened it and how many times.
Every open counts
Repeat visits are counted too, so you can spot the people who keep coming back.
Send on WhatsApp in a tap
A WhatsApp button per contact opens a chat with your message and their link already filled in.
Paste or upload a list
Paste names with phone numbers or emails, or upload a CSV with up to 500 people per list.
UTM tags built in
utm_source, utm_medium and utm_campaign are added for you, so the clicks group correctly in GA4.
Export for follow-ups
Download who clicked and who didn't as a CSV for your CRM or sales team.
How it works
Set up in minutes
- 01
Add your list
Paste contacts or upload a CSV, and add the page you want them to open.
- 02
Send their link
Use the WhatsApp or email buttons, or copy each personal message.
- 03
Follow up smart
Filter to "Not yet" and nudge only the people who haven't opened it.
Tracking
Clicks with a name next to them
A normal link tells you 37 people clicked. Personal links tell you it was Rahul, Priya and Neha — and that Arjun hasn't opened it yet.
- Clicked / not yet for every contact
- First and last open time
- Number of opens, city and device
- Links look like stackly.in/p/aB3k9
Sending
Made for WhatsApp in India
Write the message once with {name} and {link}. Each contact's WhatsApp or email button opens with their first name and their own link filled in.
- 10-digit numbers get +91 automatically
- Email button with the same message
- Copy message for other apps
- Links stay live for 30 days
In practice
How teams use it
WhatsApp offers for customers
Send a sale or loyalty offer to your VIP list and see who actually opened it.
stackly.in/p/aB3k9 → Rahul
Sales follow-ups
Real estate, insurance or B2B: send a proposal or brochure and call the ones who opened it twice.
Opened 3× · Mumbai
Agency & freelancer proposals
Know when the client opened your pitch deck before you call them.
Priya · opened 20 min ago
Event invitations
Point each personal link to your event page to see who looked at the invite.
Invite → stackly.in/event/launch
Fee reminders & notices
Coaching centres and schools can see which parents opened the notice.
Not yet → send a reminder
Recruiting
Share a job description with shortlisted candidates and follow up with the ones who read it.
4 of 6 opened
Playbooks
Who uses it, and how
Pick the one that sounds like you and follow the three steps.
Online stores & D2C brands
See which customers opened your WhatsApp offer.
- 1Export your VIP customers (name + phone) as a CSV
- 2Create a list with your sale page as the link
- 3Send on WhatsApp, then re-send only to "Not yet" the next day
Tip: People who opened 3+ times are ready to buy: give them a nudge or a small extra discount.
Real estate & insurance agents
Call the leads who actually looked at your brochure.
- 1Paste today's leads with their phone numbers
- 2Link to the project brochure or plan page
- 3Sort your calls: opened twice or more first, "Not yet" last
Tip: The city and device on each open tell you whether they checked it at work or at home.
Agencies & freelancers
Know when a client opened your proposal before you follow up.
- 1Add the clients you're pitching this week
- 2Link to your deck (Google Slides, Notion or a PDF)
- 3Use the email button, then call right after the first open
Tip: "First click 20 min ago" is the best time for a follow-up call.
Schools & coaching institutes
Make sure every parent saw the fee or exam notice.
- 1Upload the class list (student or parent name + phone)
- 2Link to the notice or fee page
- 3Remind only the parents marked "Not yet"
Tip: Export the CSV and share "who hasn't seen it" with class teachers.
Event organisers
See who looked at your invite, not just who registered.
- 1Create your event page first
- 2Make a list of invitees and use the event link
- 3Follow up with people who opened it but haven't registered
Tip: Pair it with approval on the event page for invite-only events.
Recruiters & HR teams
Follow up with shortlisted candidates who read the job description.
- 1Add the shortlisted candidates
- 2Link to the job description or careers page
- 3Call the ones who opened it; nudge the rest once
Tip: Several opens from one candidate usually means strong interest.
FAQ
Common questions
No. Each link ends with a random code like stackly.in/p/aB3k9, so nothing personal is visible in the URL.
Send your next message with personal links
Paste your list, send on WhatsApp, and see who opened it.