A Square till in Belfast handles sterling beautifully, right up until a customer from Dublin wants to pay in euro

Most builds run £25,000 to £75,000. A core POS with dual-currency payments sits at the lower end, while adding loyalty, inventory, accounting and multi-site support reaches higher. Payment and dual-currency handling is the main driver.

Yes, natively. That matters in Belfast, where cross-border customers from the Republic and tourists regularly want to pay in euro. A custom POS handles both currencies in one flow rather than forcing awkward workarounds like a Square or Clover till does.

It supports flexible split and shared billing across multiple cards and currencies, so a Game of Thrones tour party or a large group can divide a bill cleanly. This is exactly the scenario off-the-shelf tills handle worst and where a custom build earns its keep.

Between three and six months depending on scope. A core dual-currency till is quickest, while loyalty, inventory, accounting and multi-site support take longer. Payment integration and testing are important not to rush.

Yes. A well-built custom POS includes an offline mode that keeps taking payments and recording sales when the connection drops, syncing once it returns, so a busy Belfast service is never held hostage to the wifi.

Yes. Stock updates in real time as you sell, and sales feed your accounting software with correct tax lines, so a custom POS joins loyalty, inventory and finance into one flow instead of leaving them as disconnected apps.

A good build follows recognised payment card security standards and uses compliant payment providers, so card handling is at least as secure as an off-the-shelf till. Ask your developer directly how they meet these standards before committing.

You own the software and can run it on hardware you choose, avoiding the per-terminal licence tax of proprietary tills. You still pay payment processing fees, but the recurring per-device cost that scales against a busy venue goes away.

Budget for payment processing fees, hardware support and a maintenance retainer for updates. For a busy multi-terminal Belfast venue, this often works out cheaper over time than the per-transaction and per-terminal fees of a proprietary system.

Nothing dramatic, if the engagement was set up correctly: the code sits in your repository, hosting runs on your cloud account, and a handover document explains how to deploy and operate the system. Any competent replacement team can then take over in days rather than months. If the agency controls the repo, the servers, or the domain, fix that now, because renegotiating access during a dispute is the most expensive place to discover the problem.

Budget 15 to 20 percent of the original build cost per year, so a $100,000 system runs $15,000 to $20,000 annually for hosting, OS and payment SDK updates, security patches, and small feature changes. Digital Heroes structures this as a monthly retainer for most POS clients, commonly $1,000 to $3,000 depending on location count. For multi-location operators that figure usually still undercuts the per-terminal subscription fees they were paying before.

For a focused first build, most small businesses land between $8,000 and $60,000: roughly $8,000 to $45,000 for a custom website and $25,000 to $60,000 for an internal tool or simple web app, based on Digital Heroes delivery across 2,000+ projects. Customer-facing products with payments, logins, or a mobile app start around $40,000. Quotes far below these bands usually mean a template with your logo on it, not software shaped around your workflow.

Plan on 8 to 16 weeks for a focused first version and 4 to 9 months for a larger platform, which is the typical spread across Digital Heroes builds. The first 2 to 3 weeks go to discovery and design before any production code ships. The two things that stretch timelines most are integrations with legacy systems and slow feedback from your side, not developer speed.

Ask to see a live POS or payments product they built, then ask exactly how they handled offline mode, receipt printing, and PCI scope, because those three areas expose anyone who has only built ordinary web apps. A competent agency will name the payment SDKs they used, such as Stripe Terminal or Adyen, and describe their terminal certification process without checking notes. If the portfolio is all marketing sites and dashboards, keep looking.

For testing whether anyone wants the product, yes, and Bubble's paid plans start at $29 a month, which is the cheapest validation you will ever buy. The ceiling arrives with complex data relationships, heavy integrations, performance at a few thousand users, and the fact that you cannot export a Bubble app to servers you control. A path many Digital Heroes clients take: prove demand on no-code, then rebuild custom once revenue justifies it, treating the no-code version as a paid prototype rather than a foundation.

Add up what you pay per year today: subscription fees per terminal, add-on modules, and the gap between your effective processing rate and an interchange-plus rate, then divide the build cost by that total. A retail group paying $60,000 a year in fees and processing markup against a $150,000 build pays back in 2.5 years, before counting labor saved by workflows designed for your operation. Digital Heroes models 2 to 4 year payback for most multi-location operators and advises against building when the model shows longer.

The reliable signals are re-typing the same data into multiple tools, one employee acting as human middleware between systems, and errors appearing in handoffs between teams. Hard limits force the issue too: Airtable's Team plan caps at 50,000 records per base, and Business costs $45 per seat per month, so a 20-person team pays about $10,800 a year for a tool it has already outgrown. When workarounds consume more hours than the tools save, the spreadsheet era is over.

Usually only at 8 or more locations, where per-terminal software fees, add-on modules like online ordering and loyalty, and processing markup commonly total $8,000 to $20,000 per location per year in the statements Digital Heroes reviews for restaurant groups. A custom system converts that into a one-time build of $100,000 to $250,000 plus maintenance, which models out to 18 to 30 month payback for most groups. Under five locations, stay on Toast and put the money into operations.

Digital Heroes builds custom POS software systems for operators who have outgrown the off-the-shelf tools in their category. The work is delivered remotely: our engineers work from Delhi and Lucknow, leadership is in New York, and some team members live in London and Sydney and work remotely from there. We have no office in Belfast. You can chat with the team directly, and every form gets an email reply within 24 hours.