# Industries with work you can check

> The industries where App369 has work you can check: business software and CRM, Shopify stores, and AI and developer tools. See the portfolio and case studies.

Canonical: https://app369.com/industries/

Industries with work you can check in the portfolio and case studies.

[**Get Started **→](https://app369.com/contact/) [**View Portfolio**](https://app369.com/portfolio/)

**FL**

Miami based

**Flutter**

iOS, Android & web

**Fixed**

Price in writing before work starts

**ET**

Eastern Time hours

## Industries

[<h3>**Business software and CRM**</h3>Workspace369, App369's own all-in-one workspace for freelancers and small service businesses, and QuoteIQ, a CRM for home service contractors I worked on as an independent contractor from 2022 to 2026. Both have case studies.**Read the case studies**](https://app369.com/case-studies/) [<h3>**E-Commerce**</h3>Shopify client stores are in the portfolio, and the Shopify Speed and Checkout Tune-Up is one of the fixed-price offers.**See the Shopify Tune-Up**](https://app369.com/fixed-price/shopify-speed-optimization/) [<h3>**AI and developer tools**</h3>Two open-source Claude projects are in the portfolio: saas-mcp-connector, an MCP server that lets Claude use a SaaS API safely, and the Claude Agent Reliability Kit, a reference build for a dependable tool-use agent.**See the portfolio**](https://app369.com/portfolio/)

## **Prefer a fixed price?**

Fixed scope, fixed price, paid upfront. The work happens in writing; no call needed.

- [**Web App MVP Sprint**from $6,000A scoped web app MVP in Vue/Nuxt or React, with a fixed quote after a $450 written scoping.](https://app369.com/fixed-price/web-app-mvp/)
- [**App Fix Ticket**from $450One reproducible bug in an existing mobile or web app, diagnosed and fixed.](https://app369.com/fixed-price/flutter-firebase-bug-fix/)
- [**AI Feature or Agent Build**$2,500One LLM feature or agent wired into your app or tools, with an eval set that shows how well it works.](https://app369.com/fixed-price/ai-feature-development/)

![](https://app369.com/.netlify/images?w=44&amp;h=44&amp;url=%2Fimages%2Fszymon.jpg)****Simon Dziak****Founder and head developer

## **Get a personalized assessment by email**

Submit your project details and Simon replies by email with a personalized assessment, usually within one business day.

[**Get in touch **→](https://app369.com/contact/) [**Instant quote**](https://app369.com/instant-quote/)

Prefer a call? [Consultations](https://app369.com/service/consultations/) are $100 per 15 minutes, paid upfront.