Whataburger was founded in Corpus Christi 75 years ago today, and to celebrate the Texas burger chain’s birthday, you can get a classic #1 Whataburger for just 75 cents.

But don’t just walk in because there’s an app for that.

“Be sure to download the Whataburger App, because from 11 a.m. to 8 p.m. local time, Whataburger Rewards members can score this digital-only offer exclusively online and through the app. The deal is limited to one redemption per Rewards account, with customizations and add-ons available for an additional charge,” according to a Whataburger news release.

“We’re also serving the second collection of limited-edition Whataburger Commemorative Cups – continuing the 75th anniversary celebration with new designs. Following the first collection that concluded on July 31, the new 32-ounce cups will debut on Aug. 5 with a 75th table tent- inspired design, followed by a silver-striped anniversary cup (Aug. 12) and a classic A-frame tribute cup (Aug. 19). Perfect for pairing with a Whatameal or saving as a sippable souvenir, these cups are only available for a limited time – in select restaurants and online at Whatastore.com – with more collections coming this fall and winter,” according to the Whataburger news release.

“Whataburger’s story has always been one about people – the fans who’ve made us part of their everyday moments, the Family Members who serve every meal with care and pride, and the communities that have welcomed us like family for 75 years,” said Whataburger President and CEO Debbie Stroud. “As we celebrate this milestone, we’re not just marking time – we’re honoring the memories, the traditions, and the quality experiences that keep folks coming back. This anniversary is our way of saying thank you. Thank you for your trust, your loyalty, and for letting us be part of your table.”