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Shopify apps / Paris

Custom Shopify app development for stores in Paris.

Custom apps for what Shopify does not do out of the box, and our own apps for common problems.

ThinkAlgo is based in India and works remotely with store owners in Paris, Île-de-France: a written scope, one fixed price, and nothing paid until you like the first milestone.

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Starter from $500 · Paris · India

Adyam, our store operations console, in daily use at a client store. Customer data masked.

Based in
India
No office in Paris. All work is remote.
Prices
Fixed, in US dollars
Shown on this site in EUR as an approximate figure.
Shopify Payments
Available in France
Shopify's supported-countries list, checked 2 October 2026.
Time
10:00 in Paris is 13:30 in India
India is 3 h 30 min ahead of Paris at this time of year.
The problem

What store owners tell us.

“Shopify cannot do this out of the box and no app does it right.”
“We need a discount rule the admin does not allow.”
“Two systems need to talk and someone copies data by hand.”
What you get

Shopify apps, delivered to a written scope.

Connections to other systems
Admin tools for your team
Discount, shipping and checkout rules
Our own apps, installable from the App Store
The right route chosen for your plan

Custom apps can use Shopify Functions for checkout and discount logic only on Shopify Plus. Stores on other plans get that logic through an App Store app. We choose the route with you before quoting. No sales popups or login popups: we do not build things that interrupt buyers.

For a store in Paris

What we account for locally.

Paris is the centre of French fashion, beauty and luxury, and home to most of the country's online brands. French shoppers expect French-language service, local card payment and pickup-point delivery, and stores selling across the EU need VAT handled country by country.

TaxVAT applies, and sales to shoppers in other EU countries usually go through the One Stop Shop scheme.
Payments and deliveryShoppers expect Cartes Bancaires, PayPal and pickup-point delivery.
Selling abroadShopify Payments is available to businesses in France, so local currencies work through Shopify's own markets settings. We set up prices, rounding and shipping per country and keep them right.

General notes, not tax or legal advice. We confirm the details for your store in the written scope.

Options and prices

Starter, project or monthly plan.

Starting points for a written quote, in US dollars. No deposit: see the first milestone, then 50% to continue and the rest on handover. Founding clients pay 40% less on the project tier

Starter

App scoping

$500from · fixed

What the app does, which route fits, and a fixed price for the build.

Project

Custom app

$4,000from · fixed

Connections to other systems, admin tools, or discount, shipping and checkout rules.

Monthly plan

App maintenance

$300from · per month

API changes, Shopify updates and small fixes.

How we work with Paris

Remote, in writing, and paid only after you have seen the work.

012 working days

Check

We look at your store and write down what we find.

02In writing

Fixed quote

Written scope and one price. Changes outside it are quoted separately.

03No deposit

First milestone

Built and shown on staging before you pay anything.

0414 days

Build, handover, support

Weekly updates, then training, documentation and support.

Questions

Before you ask.

Do you have an office in Paris?

No. We are based in India and work remotely with stores in Paris. Calls are booked at a time that suits Paris hours, and you get a reply within one working day.

Which currency do you quote in?

US dollars, fixed in a written scope. The EUR figures on this site are approximate conversions at the current rate.

Do I pay anything upfront?

No. We build the first milestone and show it on staging. If it is not what we agreed, you owe nothing. If you continue, 50% is due then and the rest on handover.

More for stores in Paris
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Shopify app developer elsewhere in France
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Tell us about your store.

A reply within one working day, with questions, next steps or a fixed quote.

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