Blog
Guides articles.
6 articles on guides from the Techrays Labs team.
Guides
How to build an on-demand delivery app
The apps, dispatch logic and architecture behind an on-demand delivery product, and how to phase the build from a single-city pilot.
4 Sept 2026
Guides
How to build a digital wallet app
The features, ledger design, security and compliance decisions behind a digital wallet app, and how to phase an MVP.
6 Mar 2026
Guides
How to build an invoicing and billing app
The features, tax handling and architecture behind an invoicing and billing app, including the multi-tenant design a SaaS product needs.
12 Sept 2025
Guides
How to build a telemedicine app
The features, architecture and privacy decisions behind a telemedicine app, from booking and video visits to records and prescriptions.
28 Mar 2025
Guides
How to build an e-learning platform
The features, architecture and build order for an e-learning platform, from courses and live classes to assessments and learner analytics.
2 Oct 2024
Guides
How to build a marketplace app
The features, architecture and build order for a two-sided marketplace app, and the early decisions that decide whether it can grow.
10 Feb 2024
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