The Starting Point: A Café Sitting on a Gold Mine
Koffie & Ko is a 38-seat café on Prinsengracht in Amsterdam. Before VoqadoWiFi, their guest WiFi password was chalked on a board near the counter. Every day, somewhere between 40 and 55 people connected. The owner, Marieke, knew her regulars by face but had no systematic way to identify them, reach them again, or understand how often they returned.
Her marketing consisted of occasional Instagram posts and a printed A5 flyer she'd leave on tables when something new was on the menu. Monthly marketing spend: roughly €180. Monthly attributable return: unknown.
The Setup: What Changed in Week One
The VoqadoWiFi onboarding took less than two hours. Marieke's existing TP-Link Omada access points were already in place — the integration required a portal configuration, a Mailchimp API key, and a GDPR-compliant opt-in flow. The captive portal was customised with her brand colours and a single welcome message: "Free WiFi — just tell us where to send your next treat."
The opt-in form collected first name and email, with an explicit checkbox for marketing communications. Within the first week, 61% of WiFi users completed the form. By week three, that number had stabilised at 54% — still well above industry averages for similar venues.
Month One: Understanding the Data
After 30 days, Marieke had 892 verified email addresses with location and session data attached. VoqadoWiFi's analytics panel revealed three things she hadn't known before:
Frequency distribution was skewed: 22% of her unique visitors accounted for 67% of total sessions. These were her regulars — people who came in three or more times per week — and she'd never had a way to reach them outside the four walls of the café.
Tuesday and Wednesday mornings were dead: Footfall between 09:00 and 11:00 on those two days averaged 8 covers. Every other morning slot averaged 19. This was a direct revenue gap she could address.
Post-5pm visits were almost non-existent from first-time visitors: New guests rarely came back in the evening. This pointed to a missed opportunity in dinner/drinks positioning.
Month Two: The First Campaigns
Armed with segmented lists, Marieke ran three targeted email campaigns.
The first was a "We miss you" re-engagement sequence sent to 143 people who had visited once in the past 30 days and not returned. The email offered a free pastry with any coffee order, valid Monday–Wednesday before noon. Open rate: 44%. Redemption rate: 19%. That single campaign drove 27 incremental visits in two weeks, generating approximately €162 in additional revenue against an email send cost of essentially zero.
The second campaign targeted her top-tier regulars — the 22% who visited most frequently. She invited them to a "First Thursday" tasting evening: new seasonal menu, 20% off the bill, reservations required. Of the 197 people emailed, 38 booked. Average spend per head that evening was €34, compared to her daytime average of €11.20. That one event added €1,292 to a Thursday that would otherwise have taken in around €340.
The third campaign was simpler: a Wednesday morning "quiet hours" promotion sent to 310 people who had visited on weekends. It filled 14 of the 16 available morning slots over four Wednesdays.
Month Three: The Compounding Effect
By month three, the email list had grown to 1,340 opted-in contacts. Campaign frequency was two emails per month. Marieke was now tracking redemptions through a unique promo code embedded in each send.
The breakdown for month three: - Re-engagement campaign: €340 attributed revenue - Loyalty tier promotion (new): €680 attributed revenue - Monthly event (Second Thursday): €1,380 event revenue - Total attributed: €2,400 - VoqadoWiFi subscription cost: €49/month
That's a 48x return on the direct tool cost, against a list built entirely from people who were already in the café.
What Marieke Says Now
"I used to think WiFi was just something you had to offer. Now I think of it as the beginning of a conversation. Every person who connects is someone I can actually talk to again."
The café's repeat visit rate — measured by returning MAC addresses — increased 31% between month one and month three. Not because the coffee got better. Because the relationship got better.
Key Takeaways for Venue Operators
If your venue has WiFi and you're not capturing data at login, you are generating goodwill for free with no return mechanism. The cost of a captive portal is trivial compared to the compounding value of a permission-based email list built from real, in-venue customers.
Start simple: one opt-in form, one monthly campaign, one event per quarter. Measure redemptions. The data will tell you what to do next.
VoqadoWiFi's integration with Mailchimp and GDPR-compliant consent flows means the legal and technical heavy lifting is already done. What you bring is the venue, the offer, and the willingness to actually send the email.
The 47 daily logins at Koffie & Ko were always there. They just needed somewhere to go.