Shopify address validation app. Block missing house numbers, PO boxes, bad postal codes & special characters at checkout. Stop bad orders. Free plan available.
From $4.99/month. Prices are the published USD list prices on the Shopify App Store and exclude usage charges.
| Plan | Price |
|---|---|
| Starter | $4.99/month |
| Growth | $9.99/month |
| Pro | $14.99/month |
The top plan is 3.0× the entry plan, a normal spread — the tiers are most likely gated on volume rather than on features.
98% of ratings are 4 or 5 stars.
Across the 46 most recent reviews, the merchants writing them were mostly in Germany, United States, Netherlands. 2% had been running the app for a year or more before reviewing it. The developer replied to 48% of them.
At $4.99/mo to start, Ninja Address Validation is priced below the category — the median entry price across 6 apps in this category is $9.99/mo.
Aggregated from 43 reviews with written feedback — we analyse the sentiment behind the ratings, we don't reprint reviews.
From our daily App Store rank tracking and review history — signals a static listing doesn't show.
Measured against the 166 reviewed apps in Checkout - Other, where it currently sits at #31 of 353 listings.
| Ninja Address Validation | Checkout - Other median | |
|---|---|---|
| Rating | 4.9 | 5 |
| Reviews | 45 | 6 |
That is 8× the review volume of the typical app in this category — the rating is carrying a lot more evidence than most.
The most-reviewed apps in Checkout - Other, with their current rating and entry price.
| App | Rating | Reviews | Price from | Compare |
|---|---|---|---|---|
| SMART Checkout Upsells & Rules | 5 | 832 | — | compare |
| Kedra Checkout Rules & Upsells | 4.8 | 508 | $6.99/mo | compare |
| Kwik COD & Checkout | 4.7 | 398 | $9.99/mo | compare |
| Blockify Checkout Customizer | 4.9 | 314 | $9.99/mo | compare |
| Shopify Checkout Blocks | 4.1 | 220 | — | compare |
| Payment Rules Hide PaymentHero | 4.9 | 213 | $9.99/mo | compare |
| BeSure Checkout Rules | 5 | 191 | $4.99/mo | compare |
| AOV.ai Post Purchase Upsell | 4.9 | 168 | $19/mo | compare |
Built by Magical Apps, on the App Store since February 2024.






No. Ninja Address Validation has no free plan; the cheapest paid plan is $4.99 per month.
Ninja Address Validation publishes 3 plans: Starter at $4.99/month, Growth at $9.99/month, Pro at $14.99/month. These are list prices from the Shopify App Store and exclude any usage-based charges.
Ninja Address Validation holds 4.9 out of 5 from 45 merchant reviews, with 98% of them at 4 or 5 stars. That is a small sample, so weigh the rating lightly — read the most recent reviews and judge the app on its features and support instead.
The most-reviewed alternatives in Checkout - Other are SMART Checkout Upsells & Rules, Kedra Checkout Rules & Upsells and Kwik COD & Checkout. The comparison table above shows each one's rating, review count and entry price.
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