THEY.dev

About THEY.dev

THEY.dev is a Krakow-based bespoke software development company covering full-stack engineering, UX/UI design, and application testing across 15 industries. With 31 projects and a 5.0/5 Clutch rating, approximately 90% of reviews highlight their value for cost and innovative, tailored solutions. Clients note their professionalism and adaptability as key strengths.

Who THEY.dev Is Best For

THEY.dev is well-suited for startups and smaller companies that need both design and engineering without the cost of a larger agency. At $25-49/hr with a 4.9/5 cost rating and 5.0 Clutch score, they offer a high quality-to-price ratio. Their 15-industry coverage makes them flexible for different client types.

Why Choose THEY.dev

Things to Consider

THEY.dev Services

Selected Work

Localgiving — Fundraising & Grant Management Platform

Localgiving

Centralised platform for UK charities to run fundraising campaigns, apply for grants, validate their organisation, and communicate with supporters — including AI-assisted grant applications.

View case study

HelloHosty — AI Guest Communication Assistant

Hello Hosty

Property management platform for short-term rental hosts: portfolio dashboard, reservation calendar, and multi-channel guest inbox grown incrementally from MVP fundamentals.

View case study

Parliamentary Research Service — Document & Workflow Management

Parliamentary Research Service

Members-only research platform rebuilt on OpenSearch so PRS staff supporting Labour MPs get fast document creation, storage, and search instead of multi-minute waits.

View case study

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