SMART Preorder & Back in stock vs Klarna On-Site Messaging
How SMART Preorder & Back in stock and Klarna On-Site Messaging compare on the Shopify App Store: rating, review count, pricing, the Built for Shopify badge, and where each one ranks in the store's organic search results. Every number is the App Store's own and is never edited.
Updated October 23, 2026 · App Store dataSMART Preorder & Back in stock vs Klarna On-Site Messaging at a glance
As of October 23, 2026, SMART Preorder & Back in stock is rated 5.0 stars from 625 reviews and Klarna On-Site Messaging is rated 2.4 stars from 113 reviews on the Shopify App Store.
- Rating: SMART Preorder & Back in stock has the higher rating, 5.0 stars against 2.4.
- Reviews: SMART Preorder & Back in stock has more reviews, 625 against 113.
- Pricing: Both list "Free".
- Built for Shopify: Only SMART Preorder & Back in stock carries the Built for Shopify badge.
| Fact |
SMART Preorder & Back in stock
|
Klarna On-Site Messaging
|
|---|---|---|
| Tagline | Sell when sold out: preorders, deposits & back in stock alerts | Convert more sales with flexible payment option messaging. |
| Rating | ★ 5.0 | ★ 2.4 |
| Reviews | 625 | 113 |
| Pricing | Free | Free |
| Built for Shopify | Built for Shopify | No badge |
| Data as of | October 23, 2026 | October 23, 2026 |
Built for ShopifyRatings, review counts, pricing labels and badges are read from each app's Shopify App Store search result card. Rankings are the store's organic results for the searches Rankbase tracks; sponsored results are excluded.
Where each app ranks in App Store search
| App Store search |
SMART Preorder & Back in stock
|
Klarna On-Site Messaging
|
|---|---|---|
| Only SMART Preorder & Back in stock ranks · 56 searches | ||
| Pedidos Ya | #1 | not in top 10 |
| Soldes | #1 | not in top 10 |
| Stockful | #1 | not in top 10 |
| Smart S | #2 | not in top 10 |
| Smart Se | #2 | not in top 10 |
| Sold Out | #2 | not in top 10 |
| Depo | #3 | not in top 10 |
| Retour | #3 | not in top 10 |
| Vorbestellung | #3 | not in top 10 |
| Baback | #4 | not in top 10 |
| Drop Start | #4 | not in top 10 |
| Kno | #4 | not in top 10 |
| Manus | #4 | not in top 10 |
| Precommande | #4 | not in top 10 |
| Shiprocket Smart Cart | #4 | not in top 10 |
| Stock | #4 | not in top 10 |
| Alert Me | #5 | not in top 10 |
| Essential Preorder | #5 | not in top 10 |
| Hide Payment Methods | #5 | not in top 10 |
| Vindi | #5 | not in top 10 |
| Beae | #6 | not in top 10 |
| Candy Rack | #6 | not in top 10 |
| Carro | #6 | not in top 10 |
| Payment Method | #6 | not in top 10 |
| Payment Rules | #6 | not in top 10 |
| Poptin | #6 | not in top 10 |
| Rep AI | #6 | not in top 10 |
| Smart | #6 | not in top 10 |
| Template | #6 | not in top 10 |
| Alegra | #7 | not in top 10 |
| Charge | #7 | not in top 10 |
| Coming Soon | #7 | not in top 10 |
| Count | #7 | not in top 10 |
| Payment Methods | #7 | not in top 10 |
| Templates | #7 | not in top 10 |
| Tra | #7 | not in top 10 |
| Zahlungsmethoden | #7 | not in top 10 |
| Back In Stock Alert | #8 | not in top 10 |
| Deposit | #8 | not in top 10 |
| Deser | #8 | not in top 10 |
| Hide Payment | #8 | not in top 10 |
| Ins | #8 | not in top 10 |
| Preorders | #8 | not in top 10 |
| Seur | #8 | not in top 10 |
| Split | #8 | not in top 10 |
| Split Payment | #8 | not in top 10 |
| Stocado | #8 | not in top 10 |
| Backorder | #9 | not in top 10 |
| Metodos De Pago | #9 | not in top 10 |
| Parcelamento | #9 | not in top 10 |
| Bucks | #10 | not in top 10 |
| Orderly | #10 | not in top 10 |
| Orders | #10 | not in top 10 |
| Pre Orders | #10 | not in top 10 |
| Qikify Smart Menu | #10 | not in top 10 |
| Sorting | #10 | not in top 10 |
| Only Klarna On-Site Messaging ranks · 3 searches | ||
| Klarna | not in top 10 | #1 |
| Klarna Payments | not in top 10 | #1 |
| Buy Now Pay Later | not in top 10 | #4 |
In the App Store's organic search results, SMART Preorder & Back in stock ranks in the top 10 for 56 of the 3,809 searches we track and Klarna On-Site Messaging for 3. They do not currently share a top-10 result. They last ranked together for "klarna payments" on October 22, 2026.
Frequently asked questions
Is SMART Preorder & Back in stock or Klarna On-Site Messaging rated higher on the Shopify App Store?
SMART Preorder & Back in stock has the higher rating, 5.0 stars against 2.4. SMART Preorder & Back in stock has more reviews, 625 against 113.
Which has more reviews, SMART Preorder & Back in stock or Klarna On-Site Messaging?
SMART Preorder & Back in stock has more reviews, 625 against 113.
Which ranks higher in Shopify App Store search, SMART Preorder & Back in stock or Klarna On-Site Messaging?
In the App Store's organic search results, SMART Preorder & Back in stock ranks in the top 10 for 56 of the 3,809 searches we track and Klarna On-Site Messaging for 3. They do not currently share a top-10 result. They last ranked together for "klarna payments" on October 22, 2026.
How is this comparison made?
Rankbase records the organic results merchants see when they search the Shopify App Store for 3,809 popular keywords, refreshed daily for published rankings and at least weekly for the rest. Each app's rating, review count, pricing label and Built for Shopify badge are taken from its App Store search result card, so they are exactly what merchants see; the date next to each app is the last time it appeared in any tracked top 10. Sponsored results are excluded, and nothing on this page is edited by hand, including for Rankbase's own apps.
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Klarna On-Site Messaging against other apps
Rankbase paired these two apps on October 15, 2026, when both ranked in the top 3 for "klarna payments". The page stays as long as either app keeps ranking or the comparison keeps being read, and every number on it is refreshed from the App Store.
Rank higher on the Shopify App Store
Rankbase helps Shopify app developers track keyword positions, analyze install click data, and optimize app listings to rank higher in the Shopify App Store.
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Rankbase is made by Craftshift, a Shopify Partner building apps for product images, variants, and bulk catalog work. We built Rankbase to track the App Store rankings of our own apps first, then opened it to other developers, and this directory grew out of that work. The rankings on these pages are Shopify's own organic search results; we never edit them, including for our own apps.
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