Powstania Warszawskiego 15
31-539 Kraków
Custom mobile and web software for mechanical contractors who have outgrown generic tools. Your technicians log hours, photos and forms on site, even without a signal, and your office sees every job without retyping a thing. Built end to end on a fixed price agreed before development starts.
30 minutes, no preparation needed.
Mechanical contractor app development means building software around how your company actually runs jobs: a mobile app for technicians and foremen that records hours, photos, forms and materials against a job, a web panel where the office schedules and approves that work, and integrations with your accounting or ERP. Apps Value, a mobile app development agency in Cracow, Poland, builds this end to end in Flutter, with offline work designed in from the start, on a fixed price agreed after scoping.
Most field service platforms are built for the average service company. Mechanical contractors are rarely average: the same company runs service calls, maintenance agreements and installation projects, often with different crews, rules and paperwork for each.
A tool built for service calls handles projects badly, and a project tool handles service badly. Your office ends up running both, plus a spreadsheet to connect them.
Hours, materials and subcontractor costs live in different places, so the real cost of a job is known weeks after it closed, if ever.
Plant rooms, basements and mechanical shafts are exactly where technicians spend their day, and exactly where cloud only apps stop working.
When the app has no place for something, technicians start writing it in their phone notes. The information exists, but the office never sees it.
Start up sheets, inspection checklists and sign offs are filled on paper or in PDFs, then typed again in the office before anyone can invoice.
You pay full licences for technicians who only need to clock in, take photos and close a job, and the bill grows with every hire.
Where these problems cost the most money, and how a first version fixes them, is covered in our guides to mechanical contractor job costing, digital forms for mechanical contractors and the change order app for contractors.
The goal is simple: everything a technician does on site reaches the office once, correctly, without anyone typing it twice.
A typical system has a field app, an office panel and the connections between them. The first version usually covers one workflow completely, and the rest is added in stages once your crews use it every day.
A few fast screens for the people in the field: the jobs assigned for today, a timer that keeps running when the screen locks, photos attached to the right job, digital forms and sign offs, extra work approved by the customer on site, and materials used. Built for gloves, bad light and no signal.
A web panel for dispatchers, project managers and the owner: who is where, which jobs are finished, what still needs approval, and what each job really cost. Corrections happen here too, so one wrong entry never sends anyone back to the spreadsheet.
Your accounting system, your ERP or your existing database stay where they are. The app reads and writes data through their APIs, so approved hours and materials reach invoicing without being typed again. More on this in our guide to field service app integration.
Walk us through one job from the call to the invoice. You get a straight answer on what a first version should cover.
Technicians regularly work in basements, tunnels and plant rooms with no connection. An app that only works online turns every one of those jobs into notes on paper. That is why offline work has to be designed in from the start rather than added later.
Before we build it, we agree with you what offline has to mean for your crews: which screens must work, what can wait for a connection, and what happens when the same record is changed in two places. Photos travel in their own queue, so a large upload never blocks hours and forms, and the office can always correct a record manually in the panel. The full approach is on our offline first app development page.
Two products where the hard part happened away from a desk: one for crews logging work on site, one that has to work with no connection at all.
Time and job tracking for technicians, with photo documentation and a separate panel for team leads and the office. During real use one requirement appeared that was in no document: the work timer had to keep running when the screen locked or a call was taken from inside the app.
Read the TimeFix case study
Navigation for inland waterways that has to work where there is no signal at all. The hard part was synchronisation: data is split by route section, the first launch pulls what it needs and every later start only syncs what changed.
Read the Liniowiec case studyOur experience with Apps Value exceeded all expectations. Their team demonstrated exceptional proficiency in both technical execution and project management. What truly set them apart was their proactive approach.
CTO, EvesportYou walk us through how a job runs today and where it breaks. We tell you what a realistic first version looks like.
Screens, rules and integrations in a document, with what is out of scope written down too. One price for that scope, paid in stages.
A working build to install, not a status report. Your own crews use it on real jobs while it is being built.
Delivery closes with a signed protocol against the scope. Anything in scope that does not work is fixed at our cost.
Code, backend, store accounts and data belong to you from the start, whoever develops the system next.
Larger contracts carry a one year warranty on the software. Further stages and maintenance are agreed separately.
How the contract and the acceptance work in detail is set out in fixed price app development and fixed price app acceptance. If you run HVAC service specifically, see also custom HVAC software development. If your company also takes on electrical work, see what an electrical contractor app has to handle.
Usually two connected parts: a mobile app for technicians and foremen to log hours, photos, forms and materials against a job, and a web panel for the office to schedule, review and approve that work. Both run on one backend, and the panel can connect to the accounting or ERP system you already use.
If an off the shelf platform covers your process and your crews actually use it, stay with it and integrate. Custom software makes sense when you run both service and project work, when job costing or forms do not fit the tool, or when staff keep the real data in spreadsheets and phone notes. Our guide to mechanical contractor software walks through the choice.
Yes. The technician records the extra work inside the job with photos and a pricing basis, and the customer signs on the device before the work starts, also without a signal. The office sees the approved change order the same day and can invoice it. How it works step by step is described in our guide to the change order app for contractors.
It can, if it is designed for it from the start. Hours, forms and photos are saved on the device and synced when the connection returns, with photos in their own queue so a large upload never blocks the rest. Before building it, we agree with you exactly what working offline has to mean for your crews.
A first version built around one workflow, for example time and photos against a job plus the office review, typically takes 8 to 12 weeks from kickoff to the stores. Adding integrations, more roles or more workflows extends that, and each addition is agreed in writing before it is built.
We price a fixed scope after a scoping call and a written scope document, so the number is agreed before development starts and paid in stages. We do not publish figures on this page. Current information is on our pricing page.
Every one or two weeks you get a working build to install. Your own technicians use it on real jobs during the build, which is when requirements surface that no meeting would find. Delivery closes with a signed acceptance protocol against the written scope.
Anything inside the agreed scope that does not work is fixed at our cost, and larger contracts carry a one year warranty on the software. Further development and maintenance are agreed as separate stages.
You do. The code, the backend, the store accounts and the data are registered in your name from the start, so you can continue with us or with your own team.
Thomas Siudut
Co-Founder and CEO, Apps Value
Tell us how a job moves from the first call to the invoice and where it gets retyped. You get an honest read on what a first version should cover and what can wait.
30 minutes, no preparation needed.