★★★★★
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.
King Checkout Validation
by Lightcone
Block checkout with address validation, order limits and custom checkout rules.
Order limit
Free plan
- Rating
- 5.0
- Reviews
- 20
- Pricing from
- $4.99/mo
- Launched
- Mar 2024
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 King Checkout Validation
Use checkout validation to check shipping and billing address fields before orders are placed. Block PO boxes, require house or apartment numbers, and check postcode/ZIP, email and VAT/tax ID formats. Match phone country codes to address countries. Set order limits by cart amount, quantity or weight, with conditions for products, customer tags and countries. Use keyword, regex and field-length checks. Show localized error messages so shoppers can fix issues and continue checkout.
Highlights
- Address validation: block PO boxes and require house or apartment numbers
- Set order limits by amount, quantity or weight for products and customer tags
- Check postcode/ZIP, email and VAT/tax ID formats with checkout field rules
- Match phone country codes to shipping or billing countries
- Build keyword, regex and field-length rules with localized error messages
Languages
English, German, Dutch, French, Italian, Spanish, Portuguese (Brazil), Japanese, Chinese (Simplified), Norwegian (Bokmål), Turkish, and Finnish