What type of Apps Do You Write For Clients

General
1

Just out of curiosity, what type of apps do you write for your clients and what Operating Systems do you target?

Also, are you designing apps per client specs and requirement or selling something you designed and created to sell to multiple customers/clients?

2

We write business apps. Database heavy. All on Windows OS.

We adjust the apps to meet the business requirements. We basically have a bunch of building blocks that we can snap together to get us 90% there and customize the rest.

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3

I do mostly production line test / QA software, often controlling custom hardware, as well as ancillary information management applications related to the production line apps. All of the factory computers run Windows, but some admin folks are using Macs of late. The apps look better on Mac but run fine on Windows.

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4

Mostly R&D with the database apps. R&D usually works with something that’s never been invented before, or making highly repetitive mathematical, engineering, chemistry equations with fast answers, and graphics. This also involves some electronic measurement and testing results.
Target OS’ are typically Windows, Raspberry Pi, and Arduino.

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5

I’ve developed and maintain a CMS System in our Company. It brings together many other systems. So that we have to work with one App only to manage customers, bills, internet- and voip connections, orders, statistical data and much much more.

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6

Applications for business use. Mainly Manufacturing Execution Systems and Manufacturing Resource Planning. Platforms: Windows, MacOS, Raspberry Pi (a lot on production lines, at workstations, on information screens). Heavy use of databases. I do praise Xojo for stability, important thing when dealing with manufacturing.

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7

Mostly for Business since 2007. Creating and maintaining App for French Apple Repair Center, App for Urgency Call Center, and working on converting old RealBasic code to Xojo App. I am essentially dealing with macOS, iOS and Windows 10/11.

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8

Vertical market for retail - (my design, features aded if they are fun, useful, or likely to increase sales.)
In the past, utilities for data processing and design for a previous employer, like Sasha above.
(Sadly, my early retirement led them to decide to rewrite the functionality in other tools rather than continue with my Xojo built app.
Unsurprising as they have no other skills in Xojo there. )

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9

I usually write business apps for businesses, which are willing to pay good money. Mostly on long term relationships with their CEO or CTO. They need something, send good specs and get an app without much trouble. I write down hours and they pay. No hassle for both sides.

I don’t like to compete with some other dude on the App Store for yet another in-app purchase freemium app.

Platforms is usually what Xojo is best at: One project for an app to run on MacOS and Windows. Sometimes with Linux, too.
If they’d only need one platform, they may easily find someone else.

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10

Command and control systems for motor yachts. My system uses an onboard network of Raspberry Pi computers (each with one or more attached Arduinos) communicating via MQTT protocol to each other and an onboard Web 2 app that displays data across 4 onboard iPads and 2 Android tablets as well as remotely connected browsers. All written in 100% Xojo with no plugins.

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11

Wow! It’s really great seeing all of the different uses of Xojo here. I would have loved to have used XoJo when I was in Corporate IT, but they were too heavy into Microsoft products. While I’ve programmed in a number of different languages, I was using mostly Visual Basic and PowerShell for most of the tasks I needed to get done.

I originally purchased Xojo to use for my own personal projects and enjoyment. However, I’m looking at opportunities to create various tools to include with offerings in my business.

I really love the ability to provide cross platform support with a single code base!

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12

Back when I was working I used it for a whole variety of things. A lot of processing of data files and importing into databases. I creates a system to create xlsx files and used it to produce report packages with multiple sheets of data and graphs at the touch of a button.

We also made apps that could be downloaded by the public / general practitioners to assess risk in of complications diabetic patients (UKPDS Risk Engine). The HOMA Calculator was a simpler product used for calculating the beta cell function and insulin sensitivity in type 2 diabetic patients using their insulin and glucose levels.

Another somewhat more specialised application was a full life time simulation model for type 2 patients. It would take their current readings and estimate their life of adverse events for the next 40 years. Applying to costings to the outcomes and operating over vast numbers of patients it has been used by governments to assess potential new drugs cost effectiveness. The core of this was written in C++ but the execution engine was a xojo app. The latest version is able to fully utilise a 124 core system and still run for days to get an answer. Linux, Windows or Mac.

Now that I’m retired I’ve been bringing back to life an old statistics package I created in on Windows VB many years ago.

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