Brands Should Have to Earn You.

Herm.io builds you a private loyalty profile from your real purchase history. Connect your email or upload receipts — we analyse the loyalty you've shown to the brands you shop with, across every retailer you use, and turn it into an anonymised loyalty profile. The brands you've been loyal to can finally see the full picture (without ever seeing your identity) and reward you accordingly: personalised discounts, store credit, exclusive products, and early access. You stay anonymous until you choose to redeem a reward.

Yes, completely free. Always. Brands pay Herm.io to recognise and reward their loyal customers. We share those benefits with you in the form of rewards calibrated to the loyalty you've actually shown. There is no premium tier and no hidden costs.

Your identity is never shared, sold, or transferred to brands. Ever. They see only anonymised loyalty signals — how often, how long, and how broadly you've been loyal to their brand — but never your name, email, or personal details. You're completely anonymous until you choose to redeem a reward. We are GDPR-compliant, founded in London, UK, and you can request full data deletion at any time.

Coupon extensions and cashback sites give everyone the same deals and make money by tracking your browsing and selling data to advertisers. Herm.io works differently: you build a private loyalty profile that captures your real loyalty across every retailer you shop with — not just one channel. The brands you've been loyal to finally see the full picture, anonymously, and reward that loyalty accordingly. Your personal data is never sold or transferred to brands.

We have brands across Europe live with rewards right now, and more joining every week. You can also follow any brand you've been loyal to — including major names like Nike, Zara, and H&M. Following a brand tells us this is one you've shopped, so when they recognise the loyalty profiles in our network, your loyalty to them is part of the picture. When enough members follow a brand, we bring them on board and you'll be first to know.

Connecting your email helps us recognise the loyalty you've shown across every retailer you shop with — making your loyalty profile as accurate as possible — but it's not required. You can also upload purchase receipts manually or connect specific retailer accounts. If you don't connect any data sources, you'll still see general rewards available to all members, similar to a coupon site.

Following a brand tells us this is one you've shopped with and want to be recognised by. If the brand is already on Herm.io, the loyalty you've shown them across every retailer you shop is reflected in your loyalty profile, and you'll see rewards from them. If they're not on the platform yet, your follow is a vote — when enough members follow a brand, we bring them on board and notify you the moment they join.

Yes, at any time. Request full data deletion and we remove everything — your loyalty profile, purchase history, and all associated data. No retention periods, no fine print.