Two apps for selling more
Bloqio CRO Apps — Prometeo / Hermes
Two apps any Shopify store can install: an announcement bar at the top for promotions, and a buy button that stays visible while people scroll down the page.

- Work for a brand
- type of project
- Shopify CLI · Theme App Extensions
- main tools
- 11
- real screenshots of the project
01 · The challenge
What was going on
Context
Every time a store wants to announce a promotion, someone has to go edit the site code. It is slow, it breaks easily, and it almost always ends up looking wrong on a phone.
The problem
Turn two tricks everyone builds by hand into installable products that read the store’s real price and stock and are set up from one simple screen.
My part
The idea, the design, the code for both apps, and getting them ready for anyone to install. All me.
02 · How I solved it
How I decided to solve it
- 01
Install on top of the store without touching its code, so uninstalling leaves nothing broken.
- 02
Design for the phone first, and always know which product, which size, and how much stock exists right now.
- 03
Make both look like the same family, but let each one do a single thing well.
03 · What I made
What got built
- Prometeo: the top bar. Message, button, countdown, and once a customer closes it, it stays closed.
- Hermes: the buy button that follows you down the page, with size, quantity, and a warning when something sells out.
- The settings panel inside Shopify, and everything Shopify requires to publish an app.
04 · Charts
The numbers as charts
BCA-MAP
Bloqio CRO product map
Two apps, one criterion: reduce friction at different journey moments.
BCA-ARC
Shopify app architecture
Embedded admin + Theme App Extension as merchant and shopper surfaces.
05 · The product
Explore the project

01 The product page explains the commercial problem before showing implementation patterns.

02 Hermes is presented mobile-first: keeping purchase action available without invading content.

03 The gallery documents product states and storefront context for visual-integration review.

04 Prometeo — offer: a persistent promotional message above the header without crowding the hero.

05 Prometeo — countdown: time pressure for real drops or commercial windows.

06 Prometeo — CTA: the bar as a bridge to a priority collection or landing.

07 Prometeo on PDP: the message coexists with the product page without stealing focus.

08 Hermes mobile: purchase CTA stays in thumb reach while the shopper keeps scrolling.

09 Hermes desktop: the same purchase intent with more room for message, price, and action.

10 Hermes — sync: the sticky mirrors the real product/variant before add to cart.

11 Hermes — quantity: adjust units in the sticky flow without returning to the main block.
06 · How it turned out
What changed in the end
Two working apps, installable on any Shopify store.
Set up in minutes with no code: whoever installs them needs no help from anyone.
What I would not compromise on
- It should make sense without a manual.
- Never show a made-up price or stock number.
- If it does not work on a phone, it does not work.
07 · Technology
What it is made with
- ShopifyShopify CLI
- ShopifyTheme App Extensions
- ShopifyApp Embeds
- ShopifyLiquid
- JavaScriptJavaScript
- CSSCSS
- ReactReact Router
- ReactReact
- ShopifyShopify App Bridge
- ShopifyPolaris
- PrismaPrisma
- PostgreSQLPostgreSQL
- RailwayRailway
- TypeScriptTypeScript
- ViteVite
08 · Links
Open it and check for yourself
More cases
Other projects you can review
Casa Tecalli — Shopify OS 2.0A sample store I built to show how I work: made so the brand feels premium, products are easy to find, and buying from a phone is comfortable.See the case
Come VerdeI work with a food brand on how it speaks, where it advertises, how it sells on Amazon and Mercado Libre, and which part of that work AI can take. The goal is to plan all of it together instead of each area on its own.See the case
La Carnicería VirtualI reviewed an online butcher shop top to bottom to find why people came in and did not buy. I delivered a list of fixes ordered by how much each one helps sales.See the case
Want something like this for your business?
If your team repeats the same task by hand every campaign, it can probably become a tool.