InstallAndroid App

$1,650Delivered in 2 weeks once your details are in30-day cover

What this package is

Install is a real Android app that sits as an icon on the phone. Staff open it directly, with no browser and no web address to type, which sounds small but is the difference between something used daily and something quietly forgotten.

Inside it are up to five main screens, a login using your own staff accounts, and a live connection to your server data. What this package does not include is working without a signal, the in-app camera, and push notifications. All three are in Field.

It is written in Kotlin and Jetpack Compose, Google's own tools, not a website wrapped to look like an app. You receive an install file tested on real hardware, the full source code, an English README, and a contract in English covering scope, dates, and who owns the code.

See it working

A real app on the phone, not a link you open in a browserTap the icon on the home screen to open it, then use the bottom bar to see all five screens.

·Phone

·Messages

·Camera

·Settings

·Maps

·Calendar

·Photos

You have opened

0 of 5 screens

This package is sold as up to five main screens, so the number is something you can count rather than take on trust. When we agree the work, those five are written into the specification by name, exactly like this.

Northgate Cooling Services

An icon on the home screenOpened directly, with no browser and no web address to type

Your own staff loginsThe accounts they already have, not a second password to remember

Live data from your serverEvery screen pulls the real thing, not figures typed in once

This mirrors the screen of the delivered app. Everything here lives in this page and is connected to nothing. The real thing is an Android app written in Kotlin, installed on the phone and working without a browser.

Everything you get

This list is the entire scope of the package. Nothing is hidden in a contract.

Native Android app written in Kotlin, not a website wrapped to look like one
Up to 5 main screens, login, and a live connection to your server data
Install file tested on real hardware, ready to hand out to staff
English README and code comments, so your own team can carry the code on
Contract in English covering scope, delivery dates, and who owns the code
60 days of support after handover

Not included in this package

iOS. I will be straight with you: I cannot build it right now because I do not own a Mac. That is a tool limit, not a skill one. If you need both platforms, hire someone separately for iOS.
The Google Play developer account fee, a one-time 25 US dollars, paid under your own company name so the app belongs to you and not to me.
Pressing submit on the Play Store for you. I prepare every file and document, but the submission should happen inside your own account. I will walk you through it while you do it.
Ads and getting people to install it. That is marketing, a different line of work from mine.
A registered company on my side. I am one developer working under my own name in Thailand, and the contract is with me personally, not with an agency.

What I need from you before starting

Every question needs an answer, because these are the settings your system is built from. None of them can be skipped. If one is not settled yet, put down what you know today and we adjust it when work starts.

Who uses the app, your staff or your customers Required

The two are designed differently from the first screen. A staff app is built to finish work quickly. A customer app is built so a first-time user needs no explanation.

What happens inside the app, step by step Required

The screen count comes from the number of steps, not from a guess. Give me the sequence and I can tell you whether five screens is enough.

Where does the data live today Required

The app needs something to talk to. If a system already exists I connect to it. If there is none, the server side has to be counted as part of the work.

Do your staff already have logins Required

If they do, I reuse them so nobody has to remember a second password, which is the most common reason a new system stops being used.

What phones will your staff be using Required

Android 7 and above is my standard. If there are older handsets in the team, that has to be known before we start rather than on handover day.

How will the app reach your staff Required

For an internal team, sending the install file directly is done in a day and skips store review. Only apps for the general public actually need to be published.

How the work runs

Tell me who uses it and where

Staff or customers, inside one building or out on the road. Those two answers change how the whole thing gets built, so they come first.

You get the scope and one price in writing

Scope, price, and what I need from you, in one English document. The price moves on four things: how many screens, whether it has to run with no signal, how much work the camera does, and whether you need a web console. Nothing gets added on later.

You try the real app partway through

I send install files while the work is going, so you are holding the app on a phone long before the end date, not waiting to see it at handover.

Handover and store preparation

Source code, install file, English manual and technical doc, and the files for a Play Store submission. Then 60 days of support.

Paying and getting started

Full price of this package$1,650

Paid in full at order The price is fixed and the scope is written out. No numbers appear later.
Work starts as soon as it lands No call to book and no quote to wait for.
30 days of cover after delivery Anything wrong with my work is fixed at no charge.

Bank transfer or PromptPay. A receipt is issued every time, and a stamped work contract if you want one.

How to reach you

Your namePhone, LINE or email

Questions about this package

How is this different from a website on a phone?

Visually it need not be. But three things a website cannot do: keep working with no signal, raise a notification on the lock screen, and open the camera quickly with real control over it. If your work needs none of those, I will tell you to build a website instead. It is cheaper and easier to change.

Can you do iOS as well?

Not at the moment. Building for iOS requires a Mac, which I do not own. I say so up front rather than halfway through a conversation. If you need both platforms, hire someone separately for iOS and I will hand them the server-side documentation so they can start immediately.

What counts as one of the five screens?

Screens with genuinely different content. Confirmation dialogs, loading states and error messages do not count. When we agree the work I write the five out by name in the specification, so there is nothing left to argue about later.

Without the Play Store, how does it get installed?

I send the install file and you allow installation from outside the store once per device. I provide an illustrated guide. This is normal practice inside companies and is faster than waiting for store review. If you do want to publish, that is in Scan, which prepares every file and document for it.

Off-the-shelf software is far cheaper. Why build one?

The right question to ask, and the honest answer is that if your work looks like everybody else's, do not build. There is off-the-shelf software for nearly every field job already, from staff attendance to maintenance tickets to van sales, and some of it starts free. I am glad to point you at the right one. Building your own earns its cost when your process is specific enough that a template cannot hold it: pricing by your own formula, a connection into a system you already run, or data that is not allowed to sit on somebody else's server. I work out which of those you are at no charge, and say so plainly if you are none of them.

Is there real native work I can look at?

Yes. ReceiptLens is a native Android app I wrote in Kotlin and Jetpack Compose. It reads receipts through the camera and processes them entirely on the device. The whole codebase is public on GitHub and it is in the work section of this site. Judge it from the code rather than from a number of years.

Often booked together

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