Custom Mr. Winston integration development
Appfront builds custom integrations with Mr. Winston, the cloud POS system for hospitality. We connect your till with your accounting, reservation system, payment provider or in-house application, so that orders, revenue and products end up in the right place automatically. You avoid duplicate work and keying errors, and across all your locations you keep an up-to-date picture of what is happening at the till.
What is a Mr. Winston integration?
Mr. Winston (Winston POS) is a Dutch cloud POS system built specifically for hospitality. It runs on tablets, handhelds and terminals, and offers modules for ordering, payment, table management, reservations, QR ordering, loyalty and back office. Because the system runs in the cloud, your till data is in principle available anywhere, and therefore also available to integrate with your other software.
In practice, a custom integration means: passing orders and revenue automatically to your accounting, aligning transactions and payments with your payment provider, keeping the menu and products in sync between the till and ordering channels, connecting reservations to your hotel or reservation system, and exchanging real-time updates between Mr. Winston and your own application or dashboard via webhooks.
Appfront builds on the Mr. Winston API and webhooks (see also the official overview of Mr. Winston integrations) and follows the OWASP ASVS security standard. We align data flows, synchronisation and error handling with your actual hospitality processes, so the integration grows with your business and keeps running reliably during the busiest hours.
Cloud POS for hospitality
Ordering, payment and table management on tablets, handhelds and terminals. Because Mr. Winston runs in the cloud, your till data is ready to integrate in real time with your other systems, regardless of hardware or operating system.
Clear view of revenue and transactions
Daily revenue, transactions and product sales from the back office flow automatically to where you need them. One up-to-date view across all your locations, without retyping receipts or processing exports by hand.
Integrating with your systems
Mr. Winston connects with accounting, payment providers, and hotel and reservation systems. We build the integration that suits your business, so that orders, revenue and payments end up in the right place automatically.
Our development process for Mr. Winston integrations
We work to a proven methodology that removes uncertainty early and delivers a stable integration. From an initial analysis of your hospitality processes, till setup and adjacent systems through to go-live and ongoing management, every step is aimed at an integration your team can understand and trust.
We map out which till data you want to exchange, which systems Mr. Winston needs to connect with, how often synchronisation should take place, and how your locations and menu are set up.
We design the integration architecture, choose the right authentication for the Mr. Winston API, and define an error handling and retry strategy.
Implementation with automated tests, structured logging and monitoring. You see working builds along the way.
Controlled go-live with data validation and a safety net, followed by ongoing management and further development.
What a Mr. Winston integration actually delivers
Every Mr. Winston integration is tailored to your till setup, locations and adjacent systems. Below are the features we most often deliver for hospitality businesses that use Mr. Winston as their POS system.
API and webhook integration
The core of every integration: a reliable connection with the Mr. Winston API and webhooks. Data flows automatically and in real time between the till and your other systems, with logging, retries and monitoring so you never miss a transaction or order.
Orders and bookings
Orders placed at the till, via QR ordering or Home-Order, are passed on to your kitchen display, delivery workflow or your own application. The order process keeps running smoothly, even across multiple channels and locations at once.
Revenue and transactions
Daily revenue, transactions and payment methods are automatically passed on to your accounts or reporting. A single, consistent source for your figures, with no manual exports — neatly consolidated across all your locations.
Products and menu
Keep products, prices and the menu in sync between Mr. Winston and your ordering channels, website or app. A change made in one place flows through everywhere, so guests always see the current offering and the correct price.
Payments
Integration with your payment provider so that card payments, online payments and settlements flow neatly back into your administration. Transactions are reconciled with the till, so your cash position and accounting add up.
Accounting and reservation integration
Connect Mr. Winston with your accounting package and with your hotel or reservation system. Revenue flows into your books, and reservations and guest details are aligned with the till — so front of house and back office work from the same data.
Typical use cases in practice
A Mr. Winston integration looks very different depending on the type of hospitality business. We see a number of situations come up often, and for each we have a working setup that pays attention to orders, revenue and the right integration with accounting, payments or reservations.
Restaurants
Restaurants with table management, kitchen display screens and multiple courses. Orders and revenue flow automatically into accounting and reporting, and your menu stays in sync across your ordering channels. See also our API integrations for custom integrations.
Cafés and bars
Cafés and bars with quick rounds, separate tabs and evening peaks. Card payments and revenue are reconciled with your accounts, and orders pass smoothly through to the bar or kitchen — even when it's busy and every second counts.
Hotels with food and beverage
Hotels that manage the restaurant, bar and room service on a single till. Mr. Winston is integrated with your hotel or reservation system, so that charges land on the correct room or account and food and beverage revenue flows neatly into your bookkeeping.
Lunch rooms and quick service
Lunch rooms, caterers and quick-service restaurants with high volumes and short transactions. QR ordering and Home-Order are integrated with the till and kitchen, while products, prices and revenue stay automatically in sync with your other systems.
Technology we use
We build Mr. Winston integrations using the Mr. Winston API and webhooks, combined with the backend stack that suits you. The precise choice depends on the systems you want to connect to, such as accounting, payments or reservations, so that your own team can manage or further develop the integration.
Why choose Appfront for your Mr. Winston integration?
Appfront has extensive experience building API integrations for a wide range of organisations in the Netherlands. We always start with a thorough analysis of your existing systems and processes. An integration should not only work technically, but also add practical value to the way you work.
For every integration, we write clear documentation and make sure your own team, or any future supplier, can understand and manage it. No black box, just transparent code and clear agreements on monitoring, alerting and maintenance.
You work with a dedicated point of contact who understands both the technical and the functional side. This keeps communication short, prevents misunderstandings and speeds up decisions when choices need to be made during development.
See also our wider services around API integrations, middleware, custom software and web app development. Do you use other hospitality software? Also see our integrations with untill, Formitable and Mews, or the full overview of our integrations.
- Experience with API integrations for point-of-sale systems and hospitality software
- Experienced with accounting, payment and reservation integrations
- Secure by default: API key rotation, webhook signature validation, scoped permissions
- Clear documentation that your team can read and manage themselves
Security and privacy in Mr. Winston integrations
Till data from Mr. Winston contains transaction and payment details and, for reservations, loyalty or delivery, often customer details too. Appfront builds to the OWASP ASVS security standard. In practice this means API keys kept in secure vaults, webhook signature validation, scoped permissions and regular audits of the data flows between your till, payment provider and accounts.
We only process the data needed for the integration and document the data flows, so that your record of processing activities remains complete and you can demonstrably comply with the GDPR. Transaction and customer data is exchanged encrypted and accessed with least-privilege permissions, so payment and guest data stays protected throughout the project.
More on our security approach: information security policy and CVD policy.
- GDPR-compliant data processing and data minimisation
- Encryption in transit (TLS 1.2+) and at rest
- Role-based access and least-privilege principles
- Audit logs with traceable data flows
- Automatic retries and dead-letter queues
- Monitoring and alerting for anomalies
- Secrets management in line with best practice
- Documentation for your record of processing activities
Frequently asked questions about Mr. Winston integrations
Answers to the questions we are asked most often about Mr. Winston integrations.
A Mr. Winston integration is a technical link between the cloud-based point-of-sale system Mr. Winston (Winston POS) and another system, such as your accounting software, reservation system, payment provider or your own application. Orders, revenue, transactions and product data are exchanged automatically instead of being retyped by hand. An integration can be simple (passing daily revenue to your accounting) or extensive (real-time menu synchronisation, reservations and payments across multiple locations).
An integration makes sense as soon as you need your till data from Mr. Winston elsewhere: in your accounting, in a hotel or reservation system, in a dashboard covering multiple locations or in your own app. This avoids duplicate work, typing errors and delays between the till and the books. Not sure whether a standard integration will do or whether you need a custom build? We can help you work it out in an introductory call.
A simple integration, such as passing daily revenue or transactions on to a single accounting package, can go live within a few weeks. More complex scenarios involving real-time synchronisation of orders, menu and products, multiple locations or a custom application usually take longer. After an introductory call, we will give you a realistic estimate of the timeline.
We build integrations based on the Mr. Winston API and webhooks, combined with the backend stack that suits you: Node.js, Python, PHP or .NET. Authentication runs through API keys or OAuth. To pass data on to accounting, payment providers or booking systems, we set up reliable data flows with logging, retries and monitoring.
The cost depends on the complexity of the data flows, the number of systems to connect, the required sync frequency and the amount of custom logic. The number of locations and ongoing maintenance, monitoring and support also play a part. We always provide a clear quote following a no-obligation review of your situation.
Yes. POS data includes transaction and often customer data, so we build to the OWASP ASVS security standard: API keys held in secure vaults, webhook signature validation, scoped permissions and strictly separated rights per integration. We only process the data that is needed and document the data flows, so your record of processing activities stays complete and you can demonstrate GDPR compliance.
Yes. Appfront regularly takes over existing integrations, even if they were originally set up by another party. We review the API integration, data flows, webhook configuration and error handling, document the current setup and propose improvements. We then handle adjustments, extensions and monitoring, including timely API key rotation.
Mr. Winston is a cloud point-of-sale system widely used in hospitality: restaurants, cafés and bars, hotels with food and beverage, canteens, caterers and quick-service outlets. The system runs on tablets, handhelds and terminals and offers modules for ordering, payment, table management, reservations, QR ordering, loyalty and back office. An integration connects that POS data to your other systems.
Ready to build your Mr. Winston integration?
Tell us which POS data you want to exchange and which accounting package, payment provider or booking system Mr. Winston needs to connect with. We are happy to help with orders, revenue, products and real-time sync. A no-obligation first conversation will give you a clear picture of the possibilities within half an hour.