Back In Stock 日本語版：再入荷通知サポーター vs Scarcity++ Low Stock Counterfor Shopify (2026)
Back In Stock 日本語版：再入荷通知サポーター and Scarcity++ Low Stock Counter are Shopify apps addressing different aspects of inventory management and customer engagement. Back In Stock 日本語版：再入荷通知サポーター focuses on capturing demand for out-of-stock items by enabling customers to sign up for email, SMS, or LINE notifications when products are restocked. It also offers features like a reservation request for made-to-order products and inventory alerts. Scarcity++ Low Stock Counter, on the other hand, centers on creating a sense of urgency by displaying live countdowns and inventory levels to encourage immediate purchases. Back In Stock 日本語版：再入荷通知サポーター is geared towards merchants looking to recover lost sales from out-of-stock items and understand customer demand. Its localized approach for the Japanese market is a key differentiator. Scarcity++ Low Stock Counter is designed for merchants who want to boost sales by leveraging scarcity and social proof, especially during holiday seasons or for products with limited stock. The primary difference lies in their approach: Back In Stock aims to recapture demand when products are unavailable, while Scarcity++ aims to stimulate demand by highlighting limited availability.
At a Glance
Back In Stock 日本語版：再入荷通知サポーター
2 reviews
Scarcity++ Low Stock Counter
72 reviews
Detailed Overview
Back In Stock 日本語版：再入荷通知サポーター
商品の再入荷をEmailまたはSMS・LINEで自動通知！在庫切れアラートや予約商品リクエスト機能も新たに搭載。機会損失を防ぎます。
Key Features
- 商品の再入荷時に自動でメール、SMS、LINE通知が可能
- 受注生産商品に活用できる予約商品のリクエスト機能も利用可能！
- クリック数や購入数などの数字が、グラフで簡単に確認できるダッシュボード機能
- 売り切れ状態を防ぐため、設定した在庫数を下回った際に通知を受け取れる在庫アラート機能
- 再入荷通知をLINEで！外部アプリとの連携がなく設定が可能
Scarcity++ Low Stock Counter
Rush customers to buy with live countdown stock counter that shows your product remaining inventory
Key Features
- Show customers the remaining product inventory levels and rush them to buy now
- Create social proof, scarcity & urgency within customers & hurrify them to order
- You can show the low stock countdown inventory alert for specific products only
- Show limited stock inventory alert and boost Valentine's holiday season sales
- Supports inventory from Roposo, GlowRoad, ShipStation, Shippo, ShipRocket & more
Feature Comparison
| Rating | 3.5/5 | 5/5 |
Rating Back In Stock 日本語版：再入荷通知サポーター3.5/5 Scarcity++ Low Stock Counter5/5 | ||
| Reviews | 2 | 72 |
Reviews Back In Stock 日本語版：再入荷通知サポーター2 Scarcity++ Low Stock Counter72 | ||
| Core Functionality | Restock Notifications (Email, SMS, LINE) | Live Inventory Countdown & Scarcity Display |
Core Functionality Back In Stock 日本語版：再入荷通知サポーターRestock Notifications (Email, SMS, LINE) Scarcity++ Low Stock CounterLive Inventory Countdown & Scarcity Display | ||
| Target Merchant | Merchants losing sales due to out-of-stock items, specifically in the Japanese market | Merchants wanting to increase sales through urgency and scarcity tactics |
Target Merchant Back In Stock 日本語版：再入荷通知サポーターMerchants losing sales due to out-of-stock items, specifically in the Japanese market Scarcity++ Low Stock CounterMerchants wanting to increase sales through urgency and scarcity tactics | ||
| Key Feature: Notification Channels | Email, SMS, LINE | N/A - Visual Counter Display |
Key Feature: Notification Channels Back In Stock 日本語版：再入荷通知サポーターEmail, SMS, LINE Scarcity++ Low Stock CounterN/A - Visual Counter Display | ||
| Key Feature: Inventory Alert | Yes, for low stock | Yes, Used in the low stock counter |
Key Feature: Inventory Alert Back In Stock 日本語版：再入荷通知サポーターYes, for low stock Scarcity++ Low Stock CounterYes, Used in the low stock counter | ||
| Reporting | Restock notification count per product/customer, conversion tracking | Not explicitly stated, focuses on display customization |
Reporting Back In Stock 日本語版：再入荷通知サポーターRestock notification count per product/customer, conversion tracking Scarcity++ Low Stock CounterNot explicitly stated, focuses on display customization | ||
| Localization | Localized for the Japanese market | Not specified, but includes holiday presets (e.g., Valentine's Day) |
Localization Back In Stock 日本語版：再入荷通知サポーターLocalized for the Japanese market Scarcity++ Low Stock CounterNot specified, but includes holiday presets (e.g., Valentine's Day) | ||
| Integration | No external app needed for LINE | Roposo, GlowRoad, ShipStation, Shippo, ShipRocket |
Integration Back In Stock 日本語版：再入荷通知サポーターNo external app needed for LINE Scarcity++ Low Stock CounterRoposo, GlowRoad, ShipStation, Shippo, ShipRocket | ||
- Conversion Audit
- Speed Audit
- SEO Audit
Conversion Audit
Our Verdict
If you're a merchant operating in the Japanese market and struggling with lost sales due to out-of-stock items, Back In Stock 日本語版：再入荷通知サポーター is likely the better choice. Its focus on restock notifications through email, SMS, and LINE, combined with its localized approach, makes it well-suited for capturing demand and re-engaging customers when products are back in stock.
However, if your goal is to create a sense of urgency and boost sales by highlighting limited inventory, Scarcity++ Low Stock Counter is the more appropriate option. Its live countdown and customizable display can effectively encourage customers to make immediate purchases, particularly during peak seasons or for products with limited availability. The significantly higher review count and perfect rating also suggest a greater level of satisfaction and proven effectiveness.
Common Questions
Which app is better for recovering lost sales?
Back In Stock 日本語版：再入荷通知サポーター is specifically designed to recover lost sales due to out-of-stock products by notifying customers when items are restocked.
Which app is better for increasing sales during holidays?
Scarcity++ Low Stock Counter is better suited for increasing sales during holidays by creating a sense of urgency and highlighting limited stock with holiday presets.
Which app is more user-friendly for the Japanese market?
Back In Stock 日本語版：再入荷通知サポーター is specifically localized for the Japanese market, making it more user-friendly for Japanese-speaking customers and merchants.
Which app has better social proof?
Scarcity++ Low Stock Counter has significantly better social proof, with a 5/5 rating based on 72 reviews, compared to Back In Stock 日本語版：再入荷通知サポーター's 3.5/5 rating with only 2 reviews.
Can both apps work together?
While technically possible, both apps address different parts of the sales cycle. Back In Stock handles post-out-of-stock re-engagement, while Scarcity++ focuses on pre-purchase urgency. Using both might be redundant for some stores but could be beneficial for high-demand, frequently out-of-stock products.
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