IoT applications tailored to the client
Manufacturer of boilers, air conditioning, lighting, machines, controllers? Your product physically works, but the customer has no way to manage it from their phone. KG Electronics (25 years on the market) commissioned us an application - the effect from a case study: customers come back calling "the one with WiFi".
If you recognize at least two of these—it makes sense to discuss a custom IoT application.
01
A customer in a store asks the salesperson about Wi-Fi, not the price. Your product is dropping in the rankings among distributors because it "doesn't support" it. Your competitor's brand is winning, even though your device is technically superior.
02
The controller sends telemetry data, but the data isn't being recorded anywhere. The support team learns about the malfunction from a customer complaint, not from an alert. The manufacturer doesn't know how customers are actually using the device.
03
Customers in foreign markets expect the application as a standard. Without a software layer, the conversation ends with a leaflet instead of an order.
04
IoT is not an ordinary application. OTA updates, network errors, energy efficiency, fail-safe modes - without experience with hardware, the application only works in laboratory conditions. It's raining outside.
Real customer, real faCTOry, real product. Not a portfolio of mockups.
Full post at LinkedIn JSON Crew.
A clickable prototype in a test environment before we write a single line of production code. Payment in four installments.
Week 1
A map of your device's protocols (ModBus, MQTT, manufacturer-specific protocol), a list of integrations (ERP, service providers, distributors), and decisions regarding what the MVP includes. Deposit: 30%.
Weeks 2–3
Clickable mobile app prototype + admin panel. Screen flow by user type: end user / service / manufacturer. Screens on real devices.
End of Week 3
You approve the prototype. We won't start building the MVPithout your approval. Upon approval: another 30%.
Weeks 4–7
iOS and Andswarmd app, backend with telemetry, admin panel, and OTA updates ready for deployment. Weekly iterations on a real device. After the MVP release: another 30%.
Week 8
Publication on Google Play and App Store. Onboarding of first customers. Code transfer and deployment to your environment. After implementation: last 10%.
The customer in the store consciously chooses your controller because he sees that he has the application. The distributor asks about the price "with the application included in the package". The manufacturer's brand returns to the first screen, not leaflets.
Alerts from the device are sent to the service panel. Planned replacement, not reactive. Fewer trips to the customer, fewer complaints, shorter failure repair time.
You see how customers actually use the device - what functions, at what times, with what errors. The second generation of the product is based on data, not on the guesswork of R&D.
A driver bug? Remote update for the entire fleet. A new feature? Push it to the app without returning the device. Faster iteration, lower support costs.
Real customer, real devices, real reviews in the store. You can download the KG app and check for yourself.
KG Electronics · Manufacturer of gas boilers
12 000 / 1 000+
A Polish manufacturer with 25 years of experience. The Smart Control app for end users and an admin panel for service technicians. 12,000 connected controllers and over 1,000 app downloads. "Customers keep coming back, asking for the one with WiFi".
View the full case studyGoogle Play · Available in the store
★ LIVE
Over 1,000 downloads, reviews from KG end-users, and publicly visible ratings. Download it and check it out—this isn’t a portfolio of mockups; it’s an app that’s been in production for 18 months.
Open in Google PlayBlog · Buying Guide
7 questions
Before you send the brief, read through the 7-question checklist we use to evaluate ourselves. A comprehensive guide for decision-makers—what sets an IoT software development company apart from a regular one, and when to choose a custom solution versus a ready-made platform.
Read the guideTwo paths, two different manufacturer profiles.
Choose a ready-made platform
Choose Custom IoT
Tuya will suffice for most simple uses. Custom IoT is made for manufacturers for whom a brand on the first screen of the application and integration with the Polish ERP/service are a condition for entering the market.
What happens after implementation, and who we are.
After implementation
Optional packages. We will discuss the details during a meeting after implementation.
See also
30 seconds on JSON Crew
A software company specializing in digital transformation for B2B sales. Product configurators, dashboards, and sales processs carmation. Three key case studies (Akpil, Forest, and the internal JSON Hub platform) and portfolio implementations (KG Electronics, Metal Roofing, a heat recovery center, and modular homes).
Custom pricing following the initial discovery phase. Typeically, an IoT MVP ranges from 80,000 to 300,00PLN 0 for the first version (backend + iOS/Andswarmd mobile app + admin panel). Fixed price once the scope is defined; 30/30/30/10 payment schedule.
Modbus, MQTT, OPCUA, and proprietary manufacturer protocols. The decision regarding the communication stack is made during the initial discovery phase—we base our approach on what your device is already transmitting and what you expect in terms of scalability.
Yes. The Smart Control app from KG Electronics — Now available on Google Play. Setting up a developer account, screenshots, store description, and passing Apple and Google verification — all included. Typeically 1–2 weeks from the date the MVP is completed.
Backend hosting is your responsibility (AWS, Azure, GCP, or your own infrastructure). We recommend a scalable architecture—KG Electronics operates reliably with 12,000 connected devices. Hosting costs are not included in our project scope—we’ll work with you to determine the details before launch.
Yes, provided the architecture is designed for scalability from the outset. Architectural decisions (queues, batch processsing, partitioning, edge computing) are made in the initial phase. KG Electronics — 12,000 devices with no performance issues over 18 months of production.
The Launch Care and Growth Circle maintenance packages are available as optional add-ons. Plus, developer support is available on demand. We’ll discuss the details during a post-implementation meeting.
Describe your device and how you'd like to modify it. We'll get back to you within one business day.
IoT (Internet of Things) It’s the integration of physical devices—machines, sensors, controllers—with software that collects data from them and allows you to manage them remotely. In manufacturing and industry, this isn’t just a gimmick: it’s a way to know what’s happening with your equipment before a customer calls to report a malfunction.
We build IoT applications for situations where device data goes unused or reaches the customer with a delay. Instead of „we’ll check and get back to you," you get a live overview, failure alerts, and device activity history—all in one dashboard.
We connect devices regardless of what they "say": ModBus, MQTT, manufacturer-specific protocols. Data from the device is sent to the backend, and from there—via integrations — to your ERP, website, or distributor system. IoT is valuable when it’s not a standalone system, but rather part of a processs.
The IoT layer typically consists of the backend + web application (management panel) and a mobile app (preview and alerts on your phone). The customer no longer has a "single-function remote control"—they have a system that actively monitors the device's operation and security.
We start with a map of your device’s protocols and a list of integrations, followed by a clickable prototype in a test environment, and only then do we move on to production code. An MVP—with the most important monitoring feature—in 8 weeks, with payment spread out in stages. We’ll expand the system once the core is up and running and collecting data.
Smart Control App — A company with 25 years of experience has evolved from simple controllers to a full-fledged smart home system: a stable backend, user accounts, push notifications for outages, and availability on the App Store and Google Play. We discuss data-driven production management in more detail in this article IoT Production Management.
Do you have devices from which you aren't extracting data? Schedule a free consultation—we'll map out the protocols and tell you what your MVP should track and how much it will cost.