Growing sales on Shopify in 2026 is no longer just about driving traffic. Successful merchants focus on conversion rate optimization (CRO), average order value (AOV), customer retention, and automation — and the fastest way to achieve all of this is by using the right Shopify apps.

With over 8,000 apps in the Shopify App Store, choosing the right tools can be overwhelming. In this guide, we’ve curated the 13 best Shopify apps to increase sales in 2026, complete with feature reviews, ideal use cases, and real-world store examples.

Whether you’re a new store owner or a scaling brand, these apps will help you sell more without increasing ad spend.

13 Best Shopify Apps to Increase Sales in 2026

1. ReConvert – Post Purchase Upsell

⭐ Best Post-Purchase Upsell App

Why It Increases Sales

ReConvert allows you to upsell customers after checkout, when payment is already completed.

Key Features

• One-click post-purchase upsells

• Thank-you page customization

• Cross-sell offers

• Birthday & reorder reminders

Store Example

A beauty brand uses ReConvert to upsell skincare bundles after purchase, increasing AOV by 20%.

Best for: Brands looking to increase AOV without interrupting checkout.

2. Vitals – All-in-One Marketing App

⭐ Best All-in-One Sales App

Key Features

• Upsell & cross-sell

• Product bundles

• Reviews & trust badges

• Countdown timers

• Free shipping bar

Why It Works

Vitals replaces 10+ separate apps, improving site speed and conversions.

Store Example

A dropshipping store uses Vitals’ urgency tools to double conversion rate during flash sales.

Best for: New and growing Shopify stores.

3. Zipify Pages

⭐ Best Landing Page Builder

Key Features

• High-converting templates

• Sales funnels

• A/B testing

• Mobile optimization

Why It Increases Sales

Optimized landing pages convert better than standard product pages.

Store Example

A fitness brand builds custom product funnels that outperform default pages by 30%.

Best for: Brands running ads or promotions.

4. Klaviyo

⭐ Best Email & SMS Marketing App

Key Features

• Automated email flows

• Abandoned cart recovery

• SMS campaigns

• Customer segmentation

Why It Increases Sales

Retention is cheaper than acquisition. Klaviyo turns visitors into repeat buyers.

Store Example

A fashion store recovers 25% of abandoned carts using automated emails.

Best for: Any Shopify store serious about growth.

5. Frequently Bought Together

⭐ Best Product Bundle App

Key Features

• AI-powered product bundles

• Amazon-style recommendations

• One-click add to cart

Why It Works

Bundles increase AOV by encouraging customers to buy more.

Store Example

An electronics store increases AOV by 18% using smart bundles.

Best for: Stores with complementary products.

6. Loox – Product Reviews & UGC

⭐ Best Visual Review App

Key Features

• Photo & video reviews

• Review request automation

• Social proof widgets

Why It Increases Sales

Visual reviews build trust and reduce purchase hesitation.

Store Example

A jewelry brand boosts conversion rate by 22% after adding Loox reviews.

Best for: DTC brands and social commerce.

7. UpCart – Slide Cart Drawer

⭐ Best Cart Upsell App

Key Features

• Sticky cart drawer

• In-cart upsells

• Free shipping progress bar

Why It Works

Upselling inside the cart captures buyers at high intent.

Store Example

A home decor store increases AOV by 15% using in-cart upsells.

Best for: Stores wanting frictionless upsells.

8. Judge.me

⭐ Best Free Review App

Key Features

• Unlimited reviews

• SEO-rich snippets

• Photo reviews

Why It Increases Sales

Social proof improves trust and organic traffic.

Store Example

A startup brand builds credibility fast with verified reviews.

Best for: Budget-conscious merchants.

9. Smile.io – Loyalty & Rewards

⭐ Best Loyalty Program App

Key Features

• Points & rewards

• Referral programs

• VIP tiers

Why It Works

Returning customers spend more than first-time buyers.

Store Example

A subscription brand increases repeat purchase rate by 30%.

Best for: Brands focused on retention.

10. Bold Discounts

⭐ Best Discount Automation App

Key Features

• Flash sales

• Bulk discounts

• Scheduled promotions

Why It Increases Sales

Automated discounts reduce friction and boost urgency.

Store Example

A seasonal brand runs automated holiday sales with zero manual work.

Best for: Stores running frequent promotions.

11. Searchanise

⭐ Best Search & Filter App

Key Features

• Smart search

• Product filters

• AI suggestions

Why It Works

Better search = faster product discovery = higher conversions.

Store Example

A large catalog store improves conversion rate by improving on-site search.

Best for: Stores with many products.

12. Candy Rack

⭐ Best One-Click Upsell App

Key Features

• Pre-purchase & post-purchase upsells

• Mobile-optimized offers

• Smart targeting

Why It Increases Sales

One-click upsells remove friction and increase AOV.

Store Example

A supplement brand adds cross-sells at checkout for higher revenue.

Best for: Brands selling consumables.

13. PushOwl

⭐ Best Web Push Notification App

Key Features

• Abandoned cart reminders

• Back-in-stock alerts

• Campaign automation

Why It Works

Push notifications reach customers without email or SMS.

Store Example

A fashion brand recovers lost sales using push reminders.

Best for: Re-engagement & remarketing.