πŸ“¦ Mercastock
Shopify Β· Mobile app Β· Digital services

We see your store
every day.
We fix it before
you notice.

The only Shopify partner that lives inside your store β€” with own app, flat monthly price, no hourly billing.

30 seconds Β· No signup Β· Instant report with 20+ technical checks

πŸ“¦ Stock
sign out
T-shirts Hoodies All
Organic Cotton T-shirt
$24.90 (tap to edit)
S
βˆ’ 24 +
M
βˆ’ 25 +
Hooded Sweatshirt
$49.00 (tap to edit)

Not an agency. Not just an app.
Your digital partner inside Shopify.

We watch your catalog every day. We detect what's broken before you do. And we fix it without charging by the hour.

⚑

Mobile stock management

Push stock up or down, edit prices, archive sold-out β€” from mobile, in seconds. Without opening Shopify admin.

πŸ”

Continuous monitoring

SKU out of stock, empty SEO, missing photo, wrong tag: we alert you before your customer notices.

πŸ“ˆ

Ongoing technical SEO

Meta titles, alt image, schema β€” reviewed and optimized monthly. No expensive audits every 6 months.

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Blog and new pages

SEO posts, campaign landings, legal policies, "about us" pages: we write and publish them for you.

🎨

Design changes

Colors, typography, banners, sections: theme adjustments included in Premium. Zero freelancer contracts.

πŸ€–

Simon: your AI sales rep 24/7

The AI that answers your customers in any language, as if it were you, with real knowledge of your catalog. Included in Premium.

Included in Premium

Sell while you sleep.
Simon replies for you.

Simon is Mercastock's AI. Knows all your products, speaks like you, responds in seconds. Customers ask at 2 AM and buy at 2:03.

  • βœ“ Replies in Spanish, English and other languages β€” auto-detects which one your customer uses.
  • βœ“ Knows your catalog in real time: prices, stock, variants, shipping and return policies.
  • βœ“ Speaks in the tone you define: warm, professional, close, formal.
  • βœ“ If it doesn't know something, it passes it to you β€” never invents prices or promises what doesn't exist.
πŸ€–
Simon
● online
Hi, do you have the Terra Corset Top in blue and white?
Right now we have Terra in black and burgundy. Blue+white is on our list of upcoming colors β€” want me to notify you when we open it? πŸ’œ
Yes please. How long does an order take?
Terra in stock ships tomorrow. Made-to-order is 2-3 weeks.

Real example. Simon AI-assisted β€” supervised by the shop owner.

Flat monthly price. No hourly billing.

One price, up to 3 users per store, all features included.

Prices shown in $ Β· actual billing depends on your card's country.

Basic
$19 /month

For solo shops, up to 500 SKUs.

  • βœ“ Mobile inventory app
  • βœ“ Price and variant editor
  • βœ“ Monthly SEO check
  • βœ“ 1 new page per year
  • βœ“ Email support
Start with Basic
Most popular
Growth
$49 /month

For shops that want to grow without hiring an agency.

  • βœ“ Everything in Basic
  • βœ“ Continuous technical SEO
  • βœ“ 1 new page per month
  • βœ“ 1 blog post every 2 months
  • βœ“ Monthly store report
  • βœ“ Priority support
Choose Growth
Premium + Simon AI
$99 /month

For shops that want to focus on selling.

  • βœ“ Everything in Growth
  • βœ“ Simon AI answering your chats 24/7
  • βœ“ 2 blog posts per month
  • βœ“ Unlimited minor design changes
  • βœ“ Direct WhatsApp or call
  • βœ“ Response within 24h
Talk about Premium

One-time setup services

Perfect for new shops or migrations. Add to any monthly plan.

Complete theme setup

$249

Mercastock theme installed with your palette and content.

Blog launch (10 SEO posts)

$349

10 SEO-optimized posts, published and structured.

Deep SEO audit

$149

Full technical analysis + improvement plan applied.

Migration to Shopify

$249

From WooCommerce, Etsy, PrestaShop or similar. Full catalog.

Bundle savings

"Full Launch" package

$747
$649

Full theme + Blog launch (10 posts) + Deep SEO audit. All installed and ready in 2-3 weeks.

Frequently asked

Is it the same as Shopify Mobile?

No. Shopify Mobile does everything Shopify does β€” with the same busy interface. Mercastock is a mobile app ultra-focused on the tasks you do every day: stock, prices, variants. It also includes human services (SEO, blog, design changes) that Shopify Mobile doesn't have.

Is it a Shopify App Store app?

No. Each store installs a private custom app in their own Shopify admin. Your token stays with you, encrypted on our servers. No shared credentials.

How is my price determined?

By the country your card was issued in. European cards pay in euros (€49/€99/€199). Cards from the Americas and rest of world pay in dollars ($19/$49/$99). Same product, priced fair for your market.

Can I cancel anytime?

Yes, cancel anytime from your panel. No commitment, no penalty. Everything already done (setup, theme, blog) stays in your store forever.

Do you touch my orders or customer data?

No. We only write to products, variants, inventory, collections and pages. Orders and customers stay in Shopify β€” we don't read or touch them.

How do we start?

Email [email protected]. We reply to schedule a free 20-min call. In that call we look at your store, your goals, and decide if Mercastock fits. If yes, we start within 48 hours.