There are six common ways to capture leads at a trade show or exhibition stall: collecting business cards, paper sign-up forms, organiser badge scanners, tablet or kiosk forms, visitor-scanned QR codes, and WhatsApp-based capture. The right choice depends on how busy your stall gets, how much detail you need from each visitor, and how quickly you want to follow up.
Before comparing methods, it helps to be clear about what a good lead capture method has to do.
What a good lead capture method must do
- Be fast for the visitor. If it takes more than a minute, people at a busy stall will skip it.
- Capture the right details accurately. Name, phone number and a couple of qualifying answers — typed correctly.
- Capture context. What the visitor wanted, how interested they were, and any promised follow-up.
- Put every lead in one place. Not split across staff phones, notebooks and photo galleries.
- Keep working when the venue internet doesn't (see offline lead capture).
- Make follow-up easy. The sooner a lead can be contacted, the more likely it converts.
Keep these six criteria in mind as you read the comparison below.
Method 1: Collecting business cards
The traditional method: the visitor hands over a card, and it goes into a bowl or a pocket.
Works well for: quick exchanges with senior visitors who carry cards.
Problems:
- Many visitors — especially owners of smaller businesses and younger buyers — no longer carry cards.
- A card has no context. A week later you won't remember who wanted a price list and who was just being polite.
- Someone has to type every card into a spreadsheet or CRM, and that job is usually postponed.
- Cards get lost, mixed up between staff members, or left at the hotel.
Make it better: write a short note on the back of each card immediately, or scan it into a lead capture app that extracts the details for you.
Method 2: Paper sign-up forms or registers
A clipboard or register where visitors write their name, number and interest.
Works well for: very small stalls on a tight budget.
Problems: handwriting is hard to read, phone numbers get written with a digit missing, and a single register becomes a queue at peak times. It also has to be typed up later. See our detailed comparison of paper forms vs digital lead capture.
Method 3: Organiser badge scanners
Some large exhibitions print a barcode or QR code on visitor badges and rent scanners or a scanning app to exhibitors.
Works well for: big international shows where every visitor is pre-registered.
Problems:
- Not every exhibition offers it, and it usually costs extra.
- You get only what the visitor typed when registering — often a name, company and email, but not their interest in your products.
- The data typically reaches you after the show, through the organiser's portal, which delays follow-up.
Make it better: add your own qualifying notes for each scan if the scanning app allows it.
Method 4: Tablet or kiosk forms
A tablet on the stall counter running a digital form.
Works well for: stalls with a dedicated staff member to guide visitors through the form.
Problems: one tablet serves one visitor at a time, so it becomes a queue when the stall is busy. Online-only forms fail when the venue Wi-Fi is overloaded. And tablets need to be charged, secured and wiped of the previous visitor's entry.
Method 5: QR codes the visitor scans with their own phone
You display a QR code at the stall. Visitors scan it with their phone camera and share their details on their own device.
Works well for: busy stalls, because any number of visitors can scan at the same time and nobody waits for a staff member.
Why it works: the visitor types their own details, so spelling and phone numbers are accurate. The visitor's phone uses its own mobile data, so you don't depend on the venue Wi-Fi. And you can ask the same qualifying questions to everyone.
Watch out for: a QR code that leads to a long web form. Keep it to a few questions. We cover design and placement in QR code lead capture for exhibitions.
Method 6: WhatsApp-based lead capture
A variation of the QR method where scanning the code opens a WhatsApp chat instead of a web page. The visitor sends a message, answers a few questions in the chat, and receives your brochure in the same conversation.
Works well for: markets where WhatsApp is the default way businesses talk to customers, such as India.
Why it works: there is no app to install and nothing new to learn — visitors already use WhatsApp every day. Their number is verified automatically because they messaged you from it, and the brochure stays in their chat history, so they can find your company again after the show.
Side-by-side comparison
| Method | Speed at a busy stall | Data accuracy | Qualifying details | Works without venue Wi-Fi | Ready for follow-up |
|---|---|---|---|---|---|
| Business cards | Fast | Good, but no context | No | Yes | After manual typing |
| Paper forms | Slow (queue) | Poor (handwriting) | Some | Yes | After manual typing |
| Badge scanners | Fast | Registration data only | Rarely | Depends on the device | Often after the show |
| Tablet forms | Slow (one at a time) | Good | Yes | Only if built for offline | Immediately |
| QR code to a web form | Fast (parallel) | Good | Yes | Uses visitor's mobile data | Immediately |
| QR code to WhatsApp | Fast (parallel) | Verified number | Yes | Uses visitor's mobile data | Immediately, in the same chat |
How to choose the right method for your stall
- If your stall gets crowded at peak hours, choose a method where visitors use their own phones (QR or WhatsApp) so you can capture many people at once.
- If you need detailed qualification, choose a digital method where you control the questions.
- If your sales team follows up on WhatsApp anyway, capture leads in WhatsApp from the start — the conversation is already open.
- Always keep a fallback for visitors who prefer to talk: a staff member who can add the lead manually on their phone, ideally with business card scanning.
Most exhibitors end up combining two methods: a self-service QR code for the majority of visitors, and manual entry by staff for important conversations. What matters most is that both feed the same lead list.
How StallLead captures leads
StallLead combines both approaches. Your stall gets a QR code for each event; scanning it opens WhatsApp, where visitors answer your short list of questions and choose options such as "Get price list" or "Talk to sales", which can send them the right document automatically. Staff can add visitors manually in the web app or the mobile app — manual entries are saved even when the staff device is offline, and with a connection the mobile app can scan a business card to pre-fill the details. Every lead from every source lands in one list per event. See all features.
Frequently asked questions
What is the most effective way to collect leads at a trade show?
For most stalls, a self-service method where visitors scan a QR code with their own phone is the most effective, because many people can do it at once and they enter their own details accurately. Combine it with staff-entered leads for in-depth conversations.
What information should I collect from trade show leads?
Collect name, phone number (and email if you sell by email), company, and two to four qualifying answers such as product interest, purchase timeline and location. Add a short note about the conversation.
Do I need an app for exhibition lead capture?
Your visitors shouldn't need to install anything — a QR code that opens a web form or WhatsApp works with the phone camera. Your staff benefit from an app that stores all leads in one place and works offline.