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# Quassum

> Quassum (Quassum MB) is a product development agency in Vilnius, Lithuania, founded in 2019. We design, build, and launch web apps, iOS apps, AI products, and SaaS tools for clients worldwide, and we ship our own products alongside client work. Every engagement starts with a working demo in under a week, at a fixed price tied to a concrete deliverable. Contact: info@quassum.com.

Key facts:

- Based in Vilnius, Lithuania; working with clients worldwide in English
- Founded in 2019; 20+ products shipped
- Services: web development, iOS development, AI integration, SaaS development, UI/UX design
- Pricing: fixed price per outcome, quoted within 48 hours; working demo in under a week
- Open source maintainer: Squircle.JS has 40,000+ monthly npm downloads

## Pages

- [Homepage](https://www.quassum.com/): what we do and recent projects
- [Services](https://www.quassum.com/services): web, mobile, AI, and e-commerce development with fixed pricing
- [Apps we built](https://www.quassum.com/products): full product portfolio
- [App development in Lithuania](https://www.quassum.com/app-development-lithuania): working with us from Lithuania or abroad
- [About](https://www.quassum.com/about): company story and values
- [Contact](https://www.quassum.com/contact): email and social links

## Case studies

- [VSKS Keyboard](https://www.quassum.com/case-studies/vsks-keyboard): Lithuanian keyboard for iOS, 5,000+ organic users
- [Widget AI](https://www.quassum.com/case-studies/widgetai): AI-generated iOS home screen widgets, 3,000+ users
- [Squircle.JS](https://www.quassum.com/case-studies/squircle-js): Apple-style squircles for React, Vue, Svelte, and Solid; 40K+ monthly npm downloads
- [SVG to SwiftUI](https://www.quassum.com/case-studies/svg-to-swiftui): free converter with 10K+ monthly visitors
- [Pluck](https://www.quassum.com/case-studies/pluck): personal finance app for iOS

## Contact

- Email: info@quassum.com
- GitHub: https://github.com/quassum
- LinkedIn: https://www.linkedin.com/company/quassum

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