Micro-apps: AI already supercharged developers; now it’s your turn

6 min read·Updated October 18, 2026

AI already changed developers’ work

Over the past few years, AI became part of everyday work for people who code: it writes code, reviews it, finds bugs and explains what isn’t clear. Developers didn’t stop being needed; they got faster and can spend more time deciding what to build.

The interesting question is a different one: what happens when that same capability reaches someone who doesn’t code but does know the problem? The person who merges three spreadsheets every Monday, who chases approvals over WhatsApp or who fixes the same errors by hand knows exactly what should be improved. Until now, they lacked a way to build it.

What a micro-app is

A micro-app is a small application that solves one specific pain for a team. It doesn’t try to replace the company’s main system: it does one thing and does it well. Some typical examples in administrative teams:

• Purchase requests with their approval flow, instead of scattered emails and messages.
• Team vacation and leave tracking, with everyone’s balance always up to date.
• Accounts receivable follow-up: who owes, how much and since when, with reminders before due dates.
• An inventory log for a warehouse or the office’s assets.
• A dashboard that gathers the data now copied from several spreadsheets for the weekly report.

What they share: the process already exists, someone does it by hand and the information lives in files only one person fully understands.

Signs your spreadsheet is ready to become an app

Spreadsheets are an excellent tool, and often exactly what’s needed. But there are signs a file has outgrown what the team needs:

• There are several versions of the same file and nobody is sure which is the latest.
• Several people edit it and someone has deleted or overwritten someone else’s work.
• You move data from one file to another, or from email to the file, several times a week.
• Formulas break and only one person knows how to fix them.
• Approvals happen outside the file, in messages or emails, with no record.

It isn’t just a feeling. Research on spreadsheets has concluded for years that their errors are common and non-trivial (Panko, 2008). And a McKinsey analysis of more than 2,000 work activities in the United States found that collecting and processing data takes about a third of working time, with a technical automation potential above 60% (McKinsey, 2016). Much of that time is exactly copying, pasting and consolidating.

From idea to micro-app, without coding

Here’s what the path looks like with Korbex, a team of AI agents with defined roles that works with you and asks for your approval at the key steps:

1. 01

   You describe the problem in your own words

   In the chat, the way you’d explain it to a colleague: what you do today, what eats your time and what you’d like to happen. No technical knowledge needed.

2. 02

   The Delivery Manager turns it into scope

   It translates your need into user stories and acceptance criteria. You review and approve what goes into the first version.

3. 03

   The team plans and builds

   The Project Manager splits the work into tasks and the building agents code it; every change arrives as a pull request.

4. 04

   It gets reviewed and tested

   The Architect reviews every change and QA validates it against what you agreed before it’s done.

5. 05

   You approve the release

   Nothing reaches production without your “yes”. And the micro-app lives in your own GitHub and Firebase accounts: it’s yours from day one.

A real example: Franco Cerámicas tracked its sales in a spreadsheet and needed to know, for every sale, how much the sales rep earns and how much profit the company keeps. Today it uses a custom web app whose base was generated with Anton, the Korbex engine; its real catalog of 743 products was imported from the same spreadsheet it used before.

Maintain it and help it grow

Building the first version is only the start. A useful micro-app gets used, and what gets used needs improvements: a new field, another report, a different permission for the department head. That’s where many tools built in a rush get abandoned.

• Asking for changes works like asking for the first version: you describe it in the chat and the agent team plans, builds and tests it.
• Every change goes through the same review and tests, and you approve what goes to production.
• The Cybersecurity agent reviews risks, keys and permissions, which matters when the app handles customer or company information.
• If the micro-app grows into something the agents don’t cover alone, like a different stack or a complex integration, a Korbex engineer can take it on.
• Because the code lives in your GitHub, you’re never locked in: your technical team, if you have one, can review it or carry it on.

What it costs

Korbex is paid with a monthly plan and no contracts. The base, Korbex office, includes Korbex and the Delivery Manager: it’s for defining the scope of what you want to build. To build, test and publish the micro-app, the Full team works on it, with all eleven agents. We’ll publish pricing very soon; meanwhile, write to us and we’ll tell you more.

Start with a single pain. A small micro-app your team actually uses is worth more than a big system nobody adopts. Once it works, the next one is easier.

What to look after

• Pick a process with an owner: someone who knows it end to end and can tell whether the app solves the problem.
• Look after the data: if your spreadsheet holds customer, salary or cost information, decide from the start who can see what.
• Measure before and after: how long the process took and how many errors there were. That’s how you’ll know whether the micro-app was worth it.
• Bring your colleagues in: if the tool takes tedious work off their plate, they’ll be the first to use it.