
Shopify App Store · 12 apps · development to order
12 apps in the App Store. The next one is yours.
Since 2023 we have released twelve apps for Shopify: shipping, marketplaces, fiscal receipts, invoices, prices, cash on delivery and visibility in AI assistants. All passed review and remain in the catalogue. Below is what they do and what they cost.
Three apps with reviews
Nova Poshta waybill from the order in ten seconds.
The app creates the shipment in Nova Poshta, prints the label and writes the tracking number into the Shopify order. On the Pro plan shipments are created automatically; on Enterprise the customer picks a branch or parcel locker right in the cart.
- 4.7 out of 5 · 18 reviews
- 14 days free
- from $5 a month + $0.10 per shipment
See what ChatGPT says about you, and fix it.
Agentic Fuel scans the catalogue, scores how ready each product is for assistants' questions and fills in what is missing: categories, attributes, use cases, FAQ, specifications. It then publishes this as JSON-LD and tracks how often OpenAI, Anthropic, Gemini, Perplexity and Grok name your brand, and who they name instead.
- 5.0 out of 5 · 7 reviews
- free plan
- paid plans from $29 a month
Fiscal receipts with no cashier or cash register.
For every order paid through a payment gateway, the app issues a receipt in the Vchasno.Kasa software cash register. The service passes it to Ukraine's State Tax Service, and the customer gets it by email. Refund receipts work the same way; any currency is available on the Pro plan.
- 5.0 out of 5 · 3 reviews
- free plan
- Pro from $5 a month + $0.10 per receipt
The other nine
Shipping
UkrPoshta without manual entry.
The shipment, label and tracking number are created from the Shopify order. On the Pro plan automatically, as with Nova Poshta.
- Shipments created and labels printed
- Tracking number in the order
- Automatic creation on the Pro plan
- from $5 a month + $0.10 per shipment
- 14 days free
Marketplaces
Products to Rozetka, orders back into Shopify.
The feed is built to Rozetka's requirements; marketplace orders arrive in Shopify and go out to delivery through Nova Poshta Shipping. Sync runs every 30 minutes on the Start plan and every 15 on the others.
- Product feed for Rozetka
- Order import and management
- Sync every 15 or 30 minutes
- from $9.99 a month
- 14 days free
Allo.ua orders in Shopify, not in your inbox.
The app collects orders from Allo.ua, creates them in Shopify and hands them to Nova Poshta Shipping. The plan depends on orders per month: from 30 to unlimited.
- Order import and management
- Nova Poshta Shipping integration
- 30, 60, 300 orders a month or unlimited
- from $9.99 a month
- 14 days free
A daily Epicentr feed with current stock levels.
The feed is built and refreshed every day together with stock levels: a customer cannot order what the warehouse no longer has. Product parameters are set in the app.
- Feed of up to 100, 1,000 or 5,000 products
- Product parameters in the app
- Refreshed every day
- from $9.99 a month
- 14 days free
Install from the App Store Need a feed for another marketplace?
A Hotline feed with no category errors.
The app maps products to Hotline and E-Katalog categories and parameters, builds the feed daily or on demand and keeps an error log. You see which product lacks a category or a required field.
- Hotline and EK categories and parameters
- Feed daily or by hand
- Error log per product
- from $5 a month
- 14 days free
Install from the App Store Discuss a feed for your price aggregator
Moving to Shopify
Prom.ua Migration Kit · 5.0 out of 5 · 1 review
Leave Prom.ua without losing customers or orders.
The app moves customers and the last two months of orders from Prom.ua into Shopify. Your mailing list and sales history are there from day one on the new platform.
- Customer import
- Import of two months of orders
- Nova Poshta Shipping integration
- from $9.99 a month
- 14 days free
Orders and documents
Invoices, delivery and orders in one app.
Branded PDF invoices go to the customer automatically when an order is created or fulfilled. Orders sit in a kanban, a calendar and a list; the checkout gets your own fields: date and time, instructions, pickup point.
- PDF invoices with your logo, sent by email automatically
- Your own checkout fields
- Kanban, calendar and list of orders
- from $9.99 a month, −8% yearly
- 14 days free
Prices
Prices follow the rate every day. On their own.
Each variant's price is tied to the dollar or euro and recalculated into the local currency daily, with your margin and rounding. Every run is logged and can be rolled back.
- Rate from a feed or entered by hand
- Margin and rounding rules
- Log and rollback of a run
- free plan · paid plans from $7.99 a month
- 14 days free
Cash on delivery
Cash on delivery confirmed before shipping.
In Colombia most orders are paid on delivery, and a refusal costs the store the trip there and back. Entregado scores the risk of every order and asks the customer to confirm it on the thank-you page or in WhatsApp. Doubtful orders wait for your decision.
- Risk scored by phone, address and history
- Confirmation on the thank-you page and in WhatsApp
- Doubtful orders wait; nothing is cancelled
- free plan · paid plans from $19 a month
Install from the App Store Cash on delivery in another market?
What we build to order
Master Development is a Shopify Select Partner. Shopify gives this tier to partners who bring new merchants to the platform and support their early success.
Public apps for the App Store
Idea to listing: an embedded Polaris interface, the Billing API, mandatory webhooks, copy and screenshots, review submission and replies to reviewers.
Payment apps
Payment apps and QR and bank-transfer flows for markets without Shopify Payments, under Shopify's rules for payment apps.
Shipping, invoices and fiscal receipts
Integrations with carriers, e-invoicing and software cash registers for local markets. Nova Poshta Shipping, UkrPoshta Shipping and Vchasno.Kasa are built this way.
Apps for a single store
Exchange with ERP and the warehouse, process automation, endpoints for agentic commerce. The code and the Partner account stay with you.
Stack: Remix / React Router 7, Polaris, Prisma with MySQL or Postgres, AWS SQS and Lambda for background jobs. Ruby on Rails for selected projects; Agentic Fuel is written in it.
How we work
A 45-minute conversation
Free. You describe the task; we say whether it will pass review and what it will require from the store.
Functional specification
Screens, data model, webhooks, pricing plans and the review checklist. The specification has a fixed price, and it fixes the development price too.
Development
A weekly demo on a development store with your data. You test every increment yourself.
Listing and review
Submission, replies to reviewers, resubmission, until the app is live. Then monthly support: API versions, deprecations, the listing.
Questions from the first call
Will you build a payment app for a market without Shopify Payments?
Yes. Master Development builds payment apps for Shopify and QR and bank-transfer flows under Shopify's rules for payment apps.
Do you handle the App Store review yourselves?
Yes. Submission, replies to reviewer comments and resubmission are included in the fixed price. Twelve of our apps passed Shopify's review and remain in the catalogue.
Who owns the app's code?
The client. The repository and the Partner account are yours; we work inside them.
How much does Shopify app development cost?
At Master Development the price of a Shopify app is fixed after the functional specification. The specification itself also costs a fixed sum, and the first 45-minute conversation is free.
Describe the app in three sentences.
We will say whether it will pass review and how big the job is. If one of the twelve already covers the task, we will say that too.










