We build what your Shopify store needs next
Shopify apps you can install today, custom apps built from your idea, and the storefronts, integrations and reports that tie it all together. Built on Shopify's own rails, explained in plain words, supported by the people who wrote the code.


Two apps, one standard
Each does one job well, works the way Shopify does, and tells you in plain words when something needs you.

Kartel
Every discount your store could run, in one app: spend-more-save-more tiers, quantity breaks, four kinds of bundle, free gifts that add themselves, VIP levels, win-back offers, multi-rule codes and bulk codes with usage counts. Choose a discount, answer three questions, watch the shopper's cart update, turn it on. Shopify applies it at checkout. Works on every Shopify plan with no theme edits.

Outbound MCF
Ship Shopify orders from the stock you already keep in TikTok Shop's US warehouses. Outbound MCF claims eligible orders, creates them with TikTok through Multi-Channel Fulfillment, writes tracking back to Shopify, keeps inventory in step, and hands anything TikTok can't ship to your own warehouse. Every exception explained in plain words.
One team, from idea to App Store
Whether you need an app that exists today or one that doesn't yet, we build on Shopify's own rails: Functions, checkout extensions, Hydrogen and the Admin API. No workarounds that break on the next theme update.
- Public apps you can install, and private apps built from your brief
- Storefronts, integrations and reports around them
- Plain words, honest pricing, support from the builders
Your custom idea, built
A feature Shopify or the App Store doesn't offer? We design and build it as a private app for your store, from a one-page brief to a working release, with Shopify's review rules already in mind if you later want to publish it.
Learn moreShopify apps
Public apps on the App Store, built once and supported for every merchant. Kartel for discounts and Outbound MCF for fulfilment, with the Kartel family next.
See the appsStorefronts and themes
Hydrogen storefronts, theme sections and app blocks, and checkout and thank-you page extensions that fit your brand and keep working after theme updates.
Learn moreIntegrations and automation
Warehouses and 3PLs, marketplaces, POS, ERPs and ad platforms: order routing, stock and tracking sync, and alerts in plain words when something needs a person.
Learn moreDashboards and data
Reports that answer the question you actually have: funnel drops, abandoned carts, sale performance day by day, delivery times. Built on your own orders, exported when you need the rows.
Learn moreOngoing care
After launch we keep it running: monitoring and alerts, Shopify API version upgrades, App Store policy changes, and a support inbox answered by the people who built it, within one business day.
Learn moreFrom a brief to a release in four steps
The same process for our own apps and for custom builds. You see progress every week and never find out about a decision after the fact.
Brief
One page in your words: what the store needs, who uses it, what "done" looks like. We reply with questions, a rough shape and an estimate.
Design
Screens and data flows you can click through before any code, so surprises happen early and cheaply.
Build and test
Built on a development store, checked live with real carts, orders and edge cases. Automated tests run on every change.
Launch and care
Released to your store or the App Store, then monitored, upgraded and supported by us.
Made for merchants, built on Shopify's own rails
We use the parts of Shopify designed to be built on, so what we ship keeps working through theme changes, API upgrades and App Store reviews, and we write every screen in the merchant's words.
Who is Shreyas Labs?
A small software studio in India that builds Shopify apps and custom Shopify work. Both of our first apps, Kartel and Outbound MCF, were built and tested end to end before being submitted to the Shopify App Store. See the About page.
Can you build something just for my store?
Yes. That is our custom work: a private app for your store alone, a storefront, an integration or a report. Start with a few lines on the Services page.
Do your apps work on every Shopify plan?
Yes. Kartel and Outbound MCF work on Basic, Shopify, Advanced and Plus. A few Plus-only extras in Kartel switch off cleanly on other plans.
Have an idea your store can't do yet?
Tell us in a few lines. We'll reply within one business day with whether it can be built, roughly how, and what it would take.