Dia: AI Chatbot & Assistant vs Mearch: AI Chatbot & Support
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Nov 3, 2026 for Dia, Oct 14, 2026 for Mearch.
The short answer
- On the Shopify App Store: Dia 5.0 from 6 reviews and Mearch 5.0 from 1 reviews.
- Both list a free plan. Paid plans start at $19/month for Dia and $81/month for Mearch.
- Mearch lists 25 features Dia’s listing doesn’t mention, including A/B testing, Agent analytics, Bundles.
Head to head
- United States
- United Kingdom
- France
Momentum
New reviews each month
Review pace is the clearest public read on how fast an app is winning new merchants.
Free
- · 200 replies / month
Launch
- · 3,000 replies / month
Grow
- · 10,000 replies / month
Scale
- · 30,000 replies / month
Free
- · 100 AI Replies / month
- · 100 Products
- · 7/24 AI Customer Support
- · AI Product Recommendations
- · Customizable AI Personality & Branding
- · FAQ & Contact Information Training
Starter
- · 1000 AI Replies / month
- · 1000 Products
- · 7/24 AI Customer Support
- · AI Product Recommendations
- · Customizable AI Personality & Branding
- · FAQ & Contact Information Training
Growth
- · 3000 AI Replies / month
- · 5000 Products
- · 7/24 AI Customer Support
- · AI Product Recommendations
- · Customizable AI Personality & Branding
- · FAQ & Contact Information Training
Premium
- · 10000 Products
- · 6000 AI Replies / month
- · 7/24 AI Customer Support
- · AI Product Recommendations
- · Customizable AI Personality & Branding
- · FAQ & Contact Information Training
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureDia is an AI Chatbot for Shopify, trained on your products, collections, pages, articles, and store policies. Dia offers a unique and intelligent sales assistant experience. It answers product questions, recommends products smartly, and helps customers with order status requests.
Mearch AI Chatbot helps Shopify merchants enhance the shopping experience, streamline support, and deliver personalized interactions that improve conversion rates and drive higher AOV. It enables smart product discovery through AI-powered search, offers tailored recommendations to help shoppers find what they need, and provides real-time assistance 24/7.
- Answer product questions before shoppers drop off
- Guide undecided shoppers to the suggested product faster
- Cut repetitive support with instant answers and order help
- See which conversations lead to orders and revenue
- AI Product Discovery: Understands intent and deliver the most relevant products.
- AI Product Recommendations: Boosts sales and engagement with product suggestions
- Conversational AI: Provides 24/7 human-like support, sales, and FAQ answers
- Multi-Language Support: Engage global customers with AI-driven multilingual chat
All the numbers
Every figure, side by side
A green dot marks the app ahead on a measured figure. Estimates, gaps and apps that leave no storefront trace never take the lead.
Adoption
| Measure |  Dia |  Mearch |
|---|---|---|
| Detected stores | 21 | Not published |
| Net store change, 28 days | 0 | 0 |
| Stores added, 28 days | Not enough data | Not enough data |
| Big-brand share | Not enough data | Not enough data |
| Top store categories | Apparel & Accessories, Home & Garden, Health & Beauty | Not published |
| Top store countries | United States, United Kingdom, France | Not published |
Reviews
| Measure | Dia | Mearch |
|---|---|---|
| App Store rating | 5.0 ★ | 5.0 ★ |
| App Store reviews | 6(ahead) | 1 |
| New reviews, 28 days | Not enough data | Not enough data |
| Reviewers a year or more in | Not enough data | Not enough data |
FAQ
Dia and Mearch: common questions
- Is Dia or Mearch cheaper?
- Both list a free plan. Paid plans start at $19/month for Dia and $81/month for Mearch. Shoplist compares base prices only between monthly plans in the same currency; usage charges and annual plans vary, so check each plan’s limits.
- Which has better reviews, Dia or Mearch?
- On the Shopify App Store: Dia 5.0 from 6 reviews and Mearch 5.0 from 1 reviews.
- What features does each app list that the other doesn’t?
- Mearch lists 25 the others don’t mention, such as A/B testing, Agent analytics, Bundles, Business hours. A feature missing from a listing may still be supported; this compares what each App Store listing says.
- Where does this comparison’s data come from?
- Shoplist crawls Shopify storefronts to detect which apps each store runs, and reads each app’s Shopify App Store listing for reviews, pricing, features and integrations. Store counts are as of Nov 3, 2026 for Dia, Oct 14, 2026 for Mearch; estimated figures are labeled.
How Shoplist compares apps
Store counts come from Shoplist’s crawl of Shopify storefronts, which detects the apps each store runs; they are as of Nov 3, 2026 for Dia, Oct 14, 2026 for Mearch. Reviews, ratings, plans, features and integrations come from each app’s Shopify App Store listing. 28-day figures are labeled when estimated, and a figure that is missing or estimated never decides who leads. Read the methodology.