Custom field service app development · Flutter and React Native

We Build Field Service Software Around How Your Team Works

Not a product you adapt to. We start every field service app development project by talking to your dispatcher, your crews, and your ops team, then build the exact field service management software your operation needs, whether you run construction crews, trade contractors, or maintenance teams. Every project is different. That is the point.

30 minutes. No commitment. We will ask about your operation, tell you what we would build, and give you a straight answer on cost and timeline.
Fixed price before you commit We sign your NDA first No pitch deck
USUKCHDEPL Field service companies worldwide, including New York
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Fixed price, milestone payments You own the source code from day one Offline first by default Live overlap with US East Coast
Why companies come to us

Why Field Service Companies Build Custom Software

The same four situations come up on almost every first call. If any of these sound familiar, a custom app is probably the right conversation to have.

Situation 1

Your dispatcher is spending half the day on the phone

Assigning jobs, answering questions about addresses, relaying information that should already be in the technician's pocket. That is not a people problem. It is a software problem, and it is solvable.

Situation 2

You have no real time view of where your team is

When a priority job comes in, you are calling technicians one by one to figure out who is closest. That gap between what is happening in the field and what you can see from the office costs you time and jobs.

Situation 3

Job reports come back late, incomplete, or not at all

Paper forms, photos on personal phones, signatures that never make it back to the office. The job is done but the documentation is not, and that creates billing delays, disputes, and compliance risk.

Situation 4

Off the shelf software does not fit how you actually operate

You bought a platform built for the average field service company, and your team now works around it instead of with it. Your business is not average, and the workarounds cost more than the subscription.

Which operation

Field service covers
very different operations

The label is one thing. What the software has to do underneath varies enormously, and knowing which of these you are moves the scope more than any feature on your list.

Trade contractors

Plumbing, electrical, HVAC. Reactive call outs mixed with scheduled work, parts on the van, and a quote that often has to happen on site.

Construction crews

Teams rather than individuals, work packages rather than tickets, and sites where the same crew stays for days or weeks at a time.

Inspection and compliance

Recurring frequencies, service history that must be readable on site, and reports that have to satisfy a regulator rather than just a customer.

Facilities management

A fixed set of buildings and assets, requests coming from tenants, and proof of completion that goes to a property manager.

Delivery and logistics

Route order matters more than job detail. Proof of delivery, exceptions, and live position are the whole product.

Asset heavy operations

Utilities and infrastructure. The asset has a history, a location, and a maintenance schedule, and the app is really a view onto that record.

What changes

What Changes After a Custom Field Service App

Not a feature list. A description of what your dispatcher's day looks like, and your technicians' day, and yours.

Before
Dispatchers call technicians to assign jobs, give directions, and answer questions
No real time view of where the team is or what they are working on
Paper forms and photos on personal phones that never make it back to the office
Per seat pricing that increases every time you hire someone new
Workarounds for the features your platform was never designed to support
After
Work reaches the field without a single phone call, with everything the crew needs to start
The office sees what is happening in the field all day, without asking anyone
Documentation is complete before the crew leaves the site, not days later
One cost to build, then yours. No per seat fees, no price increases, no vendor dependency.
Software that matches how your team actually works, built around your specific workflows
How we start every project

How We Scope a Custom Field Service App Development Project

Most software projects fail because the team starts writing code before they understand the operation. We start differently.

01

We talk to the people who will actually use it

Not just the decision maker. We want to hear from your dispatcher about how they assign jobs today. From a technician about what information they need at the start of a job. From whoever chases reports at the end of the day. That is where the real requirements come from.

02

We map your current workflow before proposing anything

How does a job get created? How does a technician find out about it? What happens when there is a problem on site? What does a completed job look like in your system? We need to understand all of that before we suggest what to change or automate.

03

We tell you what we would build and why

After the discovery call, we put together a scope document that describes the app in plain language, not technical specs. You read it and tell us where we got it wrong. That document becomes the basis of the fixed price quote.

04

You get a fixed price before anything starts

We give you a complete cost and timeline before you commit. Milestone payments tied to working software, not invoices tied to hours. If the scope changes, we talk about it before it affects the price.

Questions we ask on the first call

On dispatchHow does your dispatcher find out a new job needs to be assigned? How do they decide which technician gets it?

On techniciansWhat does a technician do when they arrive at a job? What information do they need that they do not currently have in one place?

On reportingWhat needs to be documented after a job is complete? Who needs to see it and when?

On the current setupWhat tool do you use today and what is the one thing it cannot do that costs you the most time?

On connectivityWhere do your crews lose signal, and what do they need to be able to finish while offline?

On successWhat would need to be true six months after the app launches for you to consider this a success?

What breaks

Where field service apps
actually fall over

These are the failures we find most often when auditing an existing field app. Each one is invisible in a demo and obvious to your crews within a month.

Offline that only reads, not writes

Caching a job list for offline viewing is easy. Letting a technician complete a job, attach photos and capture a signature with no signal, then reconciling that against a server where the dispatcher also changed something, is the hard part. This is the single biggest technical driver of cost in field service, and the thing most cheaply built apps get wrong.

Photos on a bad connection

A crew uploads twelve site photos over one bar of signal. Without resumable uploads and a queue that survives the app being closed, those photos silently never arrive, and nobody finds out until billing.

Form versions changing under live jobs

You update a checklist. What happens to the jobs already completed against the old version, and the ones half filled in right now? Every compliance driven operation needs an answer, and it has to be designed rather than discovered.

Battery and background location

Live crew position is the feature ops teams ask for first and technicians complain about first, because naive implementations drain a phone by lunchtime. Getting useful tracking at an acceptable battery cost is a real engineering problem.

Shift boundaries and time

Clock in and clock out around midnight, across a daylight saving change, or for a crew working in a different time zone from the office. Storing local time instead of an absolute instant is what turns payroll into a monthly argument.

Every project is different

Every Field Service App Development Project Is Different

This is what custom development means in practice. The same category of business, field service, but three different operations that needed three different solutions.

General contractor

The problem was dispatch speed

They ran repair and installation crews across active construction sites and needed to assign urgent jobs quickly rather than working through a phone chain to find the right crew. We built the coordination side of their operation first. Everything else came in later phases, after they had seen how the core worked.

Fire protection contractor

The problem was recurring inspection management

Every building had a scheduled inspection frequency and a service history that technicians needed to reference on site. The problem was not dispatch. It was that technicians had no access to that history in the field. We built around that first.

Facilities management

The problem was documentation and sign off

They were losing contracts because completed work could not be proved fast enough. The app we built focused on one thing: making finished work provable the same day it was done, straight from the site to the property manager. Everything else was secondary.

Version one

What to build first,
and what to leave out

Field service is the category most likely to be overbuilt, because the operation genuinely is complicated and every department has a wish list. Here is roughly where we draw the line on a first release.

Build it now
  • One complete path from job created to job closed, working on real devices
  • Offline writes with conflict handling, because this is the one thing that cannot be retrofitted cheaply
  • The technician role, finished properly, since that is where adoption succeeds or fails
  • Photo and signature capture with a reliable upload queue
  • Whatever documentation unblocks billing, and nothing beyond it
  • A way for the office to fix a job by hand when something goes wrong
Leave it for later
  • Live GPS tracking, until crews trust the app for the basics
  • A full custom admin panel, which is a second application in practice
  • Route optimisation, before you know the routes are the bottleneck
  • Inventory and parts on the van, unless it is the reason you are building
  • Customer facing notifications and portals
  • Deep ERP or accounting integration, beyond a simple export

Not sure what your app should look like?

That is exactly what the discovery call is for. You describe your operation, we ask questions, and by the end of 30 minutes you will have a clearer picture of what the right software looks like for your business.

Book a Discovery Call
If we are not the right fit, we say so on this call
What we have shipped

Field Service Management Software We Have Shipped

Shipped · Flutter · Field service management

TimeFix

The client managed technicians across multiple job sites and ran the whole operation through phone calls and a shared spreadsheet. They did not come to us with a feature list. They came with a problem: coordination ate too much office time and job documentation came back too slowly for billing. We mapped their workflow, identified the two things that would have the most impact, and built around those first.

Flutter iOS and Android Works offline Back4App PostgreSQL Live in production
TimeFix
mockup
TimeFix field service app showing a technician's job on site with tasks, photos and sign off
Technician view: the job on site, with everything needed to finish and sign it off before leaving.
The business case

The Real Cost of Running Field Service Without Custom Software

The cost of building is visible on a single invoice. The cost of the status quo is invisible, spread across daily friction that never shows up in one place. We are not going to invent numbers for your operation. Measure these four for one week and you will have a business case nobody can argue with.

Measure this for one week
Dispatcher phone timeEvery call made purely to assign work, give an address, or ask for a status update. Count the calls, not the feeling.
Days from job done to invoice sentMeasured from the moment work finished, not from when paperwork arrived. This is usually the number that pays for the project.
Crew time lost to unclear job informationTime spent on site working out what the job actually is, or driving back for something the brief did not mention.
Your per seat software bill, multiplied outWhat you pay today per technician per month, times your headcount, times the next three years, plus the increases in your contract.
What a custom app changes
Coordination moves into the systemWork reaches the field with everything needed to start, so the dispatcher stops being a switchboard and starts handling exceptions.
Documentation closes on sitePhotos, forms and signatures are complete before the crew leaves, which is what unblocks billing rather than delaying it.
Crews arrive knowing the jobThe brief, the history and the asset record are in their pocket rather than in someone else's inbox.
The seat bill stops growingOne build cost, then it is yours. Hiring ten more technicians changes your payroll, not your software bill.

Bring those four numbers to the call. We will work through them with you against a real scope and a real fixed price, and if the arithmetic does not support building something custom yet, we will tell you that instead of selling you a project.

Book a Free Call
What it costs

What a custom field service app costs

Field service sits in the complex tier of our pricing, because offline writes, three user roles and an integration are the norm rather than the exception. A focused first version starts at $35,000 and a full system connecting more of the business runs to around $60,000. You get one fixed number after the discovery call, not a range.

Timeline moves with scope. A deliberately narrow first version, built around one workflow, lands in 10 to 14 weeks. A full field service system with dispatch, offline reporting and an integration into what the business already runs on takes 14 to 22 weeks.

If what you are actually scoping is a first version rather than a full system, the way the number is built up is worth reading first, because for field service the offline requirement moves it more than the feature count does.

Field service app development process

How a Field Service App Development Project Works

Week 1

Discovery call and workflow mapping

We talk to your team, map how dispatch and reporting work today, and identify the highest impact things to build first. You get a scope document in plain language that describes the app before we write a line of code.

Week 1

Fixed price and milestone plan

We turn the scope document into a fixed price with milestone payments. You know the full cost before anything starts. If the scope changes during the project, we agree on it before it affects the price.

Weeks 2+

Build by milestone, demo every two weeks

We build in stages and demo working software at every milestone. You review, give feedback, and we move on. No surprises at the end. The app you see at launch is the one you have been reviewing throughout.

Field test

One crew, real jobs, before everyone gets it

Field apps live or die on adoption, so we put the app in front of one crew on real jobs before rollout. What they change in that fortnight is usually worth more than a month of office review.

Launch

Submission, training, and full handover

We handle App Store and Google Play submission, run a training session with your dispatch team, and hand over the complete source code and documentation. Post launch support is included. You own everything.

How we work together

Two Ways to Build Your Field Service App

Fixed price project

We scope the work, agree a fixed price with milestone payments, and deliver a complete, production ready app. Best for operations teams with a clear problem who want a defined outcome on a defined timeline. No hourly billing, no open ended engagement. More on how fixed price delivery works.

Dedicated developer

A senior Flutter or React Native developer embedded in your team, full time or part time. Best if you already have an app or internal engineering team and need an experienced developer to extend, maintain, or improve it on an ongoing basis.

Common questions

Field Service App Development: Common Questions

What operations leaders ask us before the first call.

How much does custom field service software cost to build?
A focused first version, built around the core of how your operation runs, starts at $35,000. Larger systems that connect more of the business run to around $60,000. Field service sits in our complex tier because offline writes, three user roles and an integration are usually all required. We give you a fixed number after the discovery call, not a range.
How long does it take?
A deliberately narrow first version, built around one workflow, takes 10 to 14 weeks. A full field service system with dispatch, offline reporting and an integration takes 14 to 22 weeks. We give you a specific timeline with the fixed price quote and break delivery into milestones so you see working software throughout.
Will the app work when technicians lose signal?
Yes. We build offline first by default for field service apps, and that means writes as well as reads: a crew can complete a job, attach photos and capture a signature with no signal, and it syncs when the connection returns. This matters especially on construction sites, in basements, warehouses, or anywhere coverage is unreliable.
What happens when two people change the same job offline?
That is the conflict case, and it has to be designed rather than left to chance. We agree the rule with you during scoping: usually the field wins on job outcome data and the office wins on assignment and scheduling. Getting this decided upfront is what separates an app crews trust from one they stop using.
We already have a field service platform. Does custom make sense?
It depends, and we will tell you honestly. If your current platform works and the per seat cost is manageable, custom may not be worth it yet. Where custom wins is when the seat bill at scale is significant, when your workflows do not fit the product, or when there is something it cannot do that matters to how you operate.
Can you integrate with tools we already use?
Yes. We connect to the accounting, payment, messaging and mapping services your business already runs on. What is possible depends on what each tool exposes: a documented API is routine, while an older system with no API is where these projects genuinely expand. We confirm all of it before you commit to anything.
Do we own the source code?
Yes. You get the complete source code, design files and documentation from day one. You can host it anywhere, hand it to another developer, or bring it in house. There is no vendor lock in and no ongoing fees unless you choose to keep us on.
Will our crews actually use it?
That is the real risk with field apps, and it is why we put the app in front of one crew on real jobs before rollout. Technicians will not adopt something that takes longer than the paper it replaced, so the technician side gets finished properly in version one while office features wait.
Do you build the office side too, or just the mobile app?
Both, but usually not in the same phase. The mobile app plus a minimal way for the office to see and fix things comes first. A full custom dispatch dashboard is effectively a second application, and it is often worth deferring until you know how the field side behaves in practice.
Can you take over an existing field service app?
Often, yes. We start with a code audit and give you an honest read on the state of the codebase within two weeks, including whether anything genuinely needs rebuilding. With field apps the first thing we check is how offline writes and conflicts are handled, because that is where the real problems usually sit.
What about GPS tracking and battery life?
Live crew position is the feature ops teams ask for first and technicians complain about first, because naive implementations drain a phone by lunchtime. It is buildable at an acceptable battery cost, but it is real work, and it is usually better added once crews already trust the app.
Your team is in Poland. How does that work?
We work with operations teams across the US, UK and Europe. We schedule standups and demos at times that work for your team, communicate on Slack, and deliver milestone demos on video calls. What matters is how well we communicate and whether we deliver what we said we would. You can read more about how our Flutter development team in Poland works with US and UK clients.
Before you book

What actually happens
in those 30 minutes

No slides, no discovery questionnaire to fill in beforehand. Three things happen, in this order.

01

You describe the operation

How work reaches the field today, where it gets stuck, and what your crews and dispatcher actually do. Twenty minutes of this is usually enough for us to see the shape of the problem.

02

We tell you what we would build

In plain language, on the call. Which workflow we would start with, what we would deliberately leave out of version one, and why.

03

You get a straight answer on cost

A real range on the call, and a fixed number in writing after we have put the scope on paper. If the numbers do not justify building yet, we will say that.

Ready to Build Your Field Service Management App?

Book a 30 minute call, walk us through your dispatch and reporting setup, and we will tell you what a custom field service app would look like, how long it would take to build, and what it would cost. No commitment, no pitch deck.

Book a Free Discovery Call
NDA signed before we talk, if you want one Source code yours from day one No obligation to proceed
Running crews in the field? Let's figure out what to build.
Book a Free Call