Best Shopify Apps to Increase Sales in 2026

How to Think About "Increasing Sales"

Before picking apps, understand the three revenue levers every Shopify store has:

1. Conversion rate — what percentage of visitors actually buy. Going from 2% to 3% is a 50% revenue increase with the same traffic.
2. Average order value (AOV) — how much each buyer spends. Adding $15 to every order adds up fast.
3. Customer lifetime value (LTV) — how often customers come back. Repeat buyers are 5-7x cheaper to convert than new visitors.

The best app stack hits all three. Here are the apps that actually move each lever, based on real usage — not just App Store ratings.

Best Apps for Conversion Rate

Maevn — AI Sales Assistant

What it does: Maevn watches how visitors browse your store in real time and detects when they're comparing similar products. It presents an AI-powered guided comparison — asking contextual questions about the visitor's needs, then recommending the best match with an automatic discount. After the recommendation, it suggests a complementary bundle from other products the visitor browsed.

Why it increases sales: Decision paralysis is a conversion killer. When shoppers compare 3 similar products and can't decide, they leave. Maevn solves this by acting like a knowledgeable sales associate — guiding the decision instead of hoping the customer figures it out alone. The AI also captures emails during the flow and syncs behavioral data to Klaviyo for targeted follow-ups.

Best for: Stores where customers naturally compare products (apparel, outdoor gear, electronics, beauty, home goods). Especially powerful for stores with 50+ products where manual configuration isn't practical.

Pricing: From $29/mo. 14-day free trial. View on Shopify App Store

Judge.me — Product Reviews

What it does: Collects and displays product reviews with photo/video support, Q&A, and review request emails. Integrates with Google Shopping for rich snippets.

Why it increases sales: Social proof is one of the most proven conversion drivers in ecommerce. Products with reviews convert 270% better than products without. Judge.me is the best value in the review app space — the free plan is genuinely useful, and the paid plan ($15/mo) covers everything most stores need.

Best for: Every Shopify store. Reviews are table stakes for ecommerce in 2026. If you don't have a review app, install this first.

Pricing: Free plan available. Awesome plan at $15/mo.

PageFly — Landing Page Builder

What it does: Drag-and-drop page builder for creating custom landing pages, product pages, and collection pages without coding.

Why it increases sales: Shopify's default theme editor is limited. PageFly lets you build high-converting landing pages for ad campaigns, seasonal promotions, and product launches. A/B test different page layouts to find what converts best.

Best for: Stores running paid ads that need dedicated landing pages. Stores that want more control over page design without hiring a developer.

Pricing: Free plan (1 published page). Paid from $24/mo.

Best Apps for Average Order Value

Maevn — AI Bundling & Upselling

Maevn appears in both categories because it tackles both conversion and AOV. After guiding a visitor to their ideal product via the comparison flow, Maevn checks for cross-category browsing behavior and suggests a complementary bundle. The bundle upsell includes an AI-generated pitch explaining why the products pair well, plus an automatic discount covering both items.

Unlike static bundle apps, Maevn's bundles are personalized per visitor based on what they actually browsed — not pre-configured by the merchant. For a deep dive on how Maevn compares to traditional bundle apps, see our Maevn vs Frequently Bought Together comparison.

ReConvert — Post-Purchase Upsells

What it does: Customizable thank-you page builder with one-click post-purchase upsell funnels. After checkout, customers see additional offers they can add to their order without re-entering payment.

Why it increases sales: Post-purchase upsells have zero cart abandonment risk and tap into the buyer's existing momentum. ReConvert's conversion rates on post-purchase offers are typically 3-8%, which adds up to meaningful revenue at scale.

Best for: Stores with products that have natural add-ons (accessories, refills, extended warranties). High-volume stores where even a 3% post-purchase take rate generates significant revenue.

Pricing: Free plan available. Paid from $4.99/mo + 0.75% of extra revenue.

For a detailed comparison of pre-purchase vs post-purchase approaches, see Maevn vs ReConvert.

Frequently Bought Together

What it does: Displays "Frequently Bought Together" product bundles on product pages based on purchase history data. Amazon-style recommendation widget.

Why it increases sales: Simple and effective for stores with obvious product pairings. The familiar "customers also bought" format is well-understood by shoppers and requires minimal setup.

Best for: Stores with clear complementary products and strong purchase history data. Budget-conscious stores that want basic bundling without complexity.

Pricing: Free for dev stores. $9.99/mo for live stores.

Best Apps for Email & Retention

Klaviyo — Email & SMS Marketing

What it does: Email and SMS marketing platform built for ecommerce. Deep Shopify integration with pre-built automation flows (abandoned cart, post-purchase, win-back, browse abandonment), advanced segmentation, and predictive analytics.

Why it increases sales: Email marketing generates $36-42 for every $1 spent — the highest ROI of any marketing channel. Klaviyo's Shopify integration means you can segment by purchase behavior, browsing activity, and predicted lifetime value. Automated flows run 24/7 without intervention.

Best for: Every Shopify store doing more than $10k/mo in revenue. The ROI on email automation is almost always positive.

Pricing: Free up to 250 contacts. Paid from $20/mo (scales with list size).

Pro tip: Pair Klaviyo with an app that captures emails from non-purchasers (like Maevn or a quiz app) to grow your list faster. Most stores only capture emails at checkout — that misses everyone who browses and leaves. See our guide on Klaviyo and AI integration for advanced flows.

Smile.io — Loyalty & Rewards

What it does: Points-based loyalty program. Customers earn points for purchases, referrals, and social engagement. Points can be redeemed for discounts or perks.

Why it increases sales: Loyalty programs increase purchase frequency by giving customers a reason to come back. The referral component also drives new customer acquisition at low cost. Repeat customers spend 67% more than new customers on average.

Best for: Stores with repeat-purchase products (consumables, fashion, beauty). Less impactful for high-ticket one-time purchases.

Pricing: Free plan (basic points). Paid from $49/mo.

Best Apps for Trust & Social Proof

Vitals — 40+ Apps in One

What it does: All-in-one marketing suite with reviews, upsells, currency converter, size charts, visitor counter, trust badges, and 30+ other widgets.

Why it increases sales: Consolidates multiple basic tools into one app, which is better for page speed than installing 10 separate apps. Trust badges and visitor counters add social proof. The reviews feature, while not as robust as Judge.me, is sufficient for many stores.

Best for: New stores that need multiple basic tools and want to minimize app clutter. Budget-conscious stores that can't afford separate best-in-class apps for each function.

Pricing: From $29.99/mo. 30-day free trial.

The Recommended App Stack

If you're building a Shopify app stack from scratch in 2026, here's the order I'd recommend:

Start with reviews and email (every store needs these). Add Maevn once you have consistent traffic and want to maximize conversion + AOV. Add ReConvert when you want to squeeze more revenue from existing orders. Add loyalty once you have a base of repeat customers.

What to Avoid

• Installing too many apps at once — each one adds load time and complexity. Add one, measure impact, then add the next.
• Overlapping functionality — don't run three different upsell apps simultaneously. Pick the best one for your use case.
• Ignoring mobile — test every app on mobile before going live. Over 70% of Shopify traffic is mobile.
• Set-and-forget mentality — apps that offer A/B testing and analytics exist for a reason. Check performance monthly and optimize.
• Chasing "best of" lists without context — the best app for a $500k/year fashion brand is different from the best app for a $50k/year specialty food store. Match the tool to your specific situation.

Wrapping Up

There's no single app that magically increases sales. The best results come from a focused stack of 3-5 apps that each solve a specific problem: convert more visitors, increase cart size, bring buyers back, and capture leads.

The apps listed here are the ones that consistently deliver ROI across different store sizes and categories in 2026. Start with the highest-impact gap in your current setup — for most stores, that's either reviews (if you have none), email automation (if you're not sending flows), or conversion optimization (if your traffic is decent but conversion rate is below 2%).

Whatever you install, measure the before and after. The best Shopify app is the one that actually moves your numbers.