★★★★★
The app stopped syncing after the last update and support took a week to reply. We lost orders during the outage and had to switch to a competitor.
Checkout Address Validator
by Schwan I/O
Prevent failed deliveries. Block checkout when an address is missing a postal code or house number.
- Rating
- 5.0
- Reviews
- 1
- Pricing from
- $4.99/mo
- Launched
- Aug 2026
First seen 18 Sep 2026 · Data updated 1 week ago
Worst recent reviews
1- and 2-star reviews reveal what this app gets wrong: the gaps a competitor could fill.
About Checkout Address Validator
Express wallets — Shop Pay, PayPal, Apple Pay, Google Pay — skip your address form, so orders arrive with a street but no house number, or no postal code at all, and the delivery fails. A missing house number only produces a warning at checkout, which the buyer can ignore. This app turns it into a block: checkout cannot be completed until the address is fixed, wallets included. Rules are set per country, and buyer messages ship in 33 languages.
Highlights
- Blocks checkout when a postal code or house number is missing
- Validates express wallet checkouts: Shop Pay, PayPal, Apple Pay, Google Pay
- Every country you ship to, with Shopify's postal-code rule prefilled
- P.O. boxes, packstations and pickup points are never blocked
- Buyer messages in 33 languages, editable for every store language
Languages
English, German, French, Italian, and Spanish