OnceOnly: Discount Protection

Name: OnceOnly: Discount Protection
Brand: Diallo Media
Rating: 5.0 (1 reviews)

Pricing: Free plan available. Free trial available.
Rating: 5.0 (1)
Developer: Diallo Media

Find out how much of your first-order discount goes to repeat buyers and block it at checkout.

Shopify's "one per customer" only counts accounts and emails. Anyone with a second email gets your welcome discount again and you never see it happen. OnceOnly first shows how much of it went to repeat buyers over 12 months. Then it recognises the same person behind a new email and address and rejects the protected code or lets it through and tags the order. No Shopify Plus required. Only checksums are stored, never plain text. Servers in the EU.

How much of 12 months of welcome discounts went to repeat buyers
Recognizes the same person behind a new email, address or account
Rejects protected codes in the cart or lets them through and tags the order
Groups codes into campaigns: one discount per person & no Shopify Plus required
Exemptions for B2B, resellers and staff

Languages

English and German

Works with

Checkout
Shopify Admin
Advanced Store
Basic Store
Checkout
Online Store
Plus Store
Shop Admin

Pricing

Choose the plan that best fits your business.

Audit

Free

Features

12 months of orders, amount per code
Spots repeat buyers as orders come in
No volume limit
Built in Germany, servers in Frankfurt

Protect

$49 / month

or $468/year and save 20%

Features

Everything in Audit
Up to 2,000 orders a month
Blocks protected codes at checkout
Or lets them through and tags them
Three protection levels, your wording
Email support
Built in Germany, servers in Frankfurt

14-day free trial

Protect Plus

$149 / month

or $1,428/year and save 20%

Features

Everything in Protect
Orders with no monthly limit
Hold detected orders until you decide
Exemptions for B2B, resellers and staff
Download order rows as CSV
Priority support
Built in Germany, servers in Frankfurt

14-day free trial

All charges are billed in USD. Recurring and usage-based charges are billed every 30 days. See all pricing options

Reviews (1)

Overall rating

Counts per rating level

100% of ratings are 5 stars
1
0% of ratings are 4 stars
0% of ratings are 3 stars
0% of ratings are 2 stars
0% of ratings are 1 stars

All reviews

October 28, 2026

Dass jemand unseren Willkommensrabatt mit einer zweiten E-Mail-Adresse nochmal mitnimmt, war für uns vorher gar nicht sichtbar. In unserer Bestellliste sieht das aus wie ein neuer Kunde. OnceOnly erkennt den Fall über Name und Lieferadresse und lehnt den Code an der Kasse ab. Ich kann auch einstellen, dass die Bestellung erst einmal nur markiert wird, damit ich sie mir selbst ansehen kann. Der Rückblick über 12 Monate war der Punkt, an dem uns klar wurde, wie viel da über die Zeit zusammenkommt.

MagicMic

Germany

8 days using the app

Diallo Media replied October 28, 2026

Danke für die ausführliche Rückmeldung! Genau dafür haben wir OnceOnly gebaut: Ein Willkommensrabatt soll bei neuen Kunden ankommen und nicht ein zweites Mal bei jemandem, der schon bestellt hat. Schön, dass der Rückblick sichtbar gemacht hat, wie viel da über die Zeit zusammenkommt. Bei Fragen hilft euch jederzeit der Chat direkt in der App, oder ihr schreibt uns an hey@diallomedia.de.