What design principles guide RecipeRadar's app and service?

RecipeRadar's own About page lists a set of leading principles that shape both the app and the service behind it. The short answer: the project aims for a distraction-free interface, internationalization and localization (including weights and measures), accessibility and usability best practices, multi-user collaboration at every stage of planning and cooking, usefulness in low-bandwidth and offline environments, no collection or storage of personally-identifiable information, mutual content-integrity guarantees for transmitted data, and a codebase that is freely available under the AGPLv3 with no reliance on proprietary software or development tools. These are stated goals rather than a finished checklist — the page itself notes "there's a lot still to do in order to deliver on all these principles."

The principles, grouped by what they affect

Interface and everyday use

• Simplicity and freedom from distraction. The app should provide "the simplest and most distraction-free recipe planning and preparation assistance possible." In practice this is a design constraint on how much chrome, prompts, or promotional content sits between you and a recipe.
• Accessibility and usability best practices. The project commits to following established accessibility and usability guidance rather than treating them as optional.

Language, units, and reach

• Internationalization and localization of content, weights and measures. This covers both the text of recipes and the measurement systems used, so the same recipe can be presented in units that make sense to a given user.

Working with other people

• Collaboration between multiple users during all stages of recipe planning and preparation. The principle is explicitly scoped to the whole workflow — planning, cooking, and sharing meals — not just a shared list at the end.

Working in poor or no connectivity

• Continued usefulness in low-bandwidth and offline environments. This is a stated design target, which matters if you cook in a kitchen with weak signal or want to rely on the app without a constant connection.

Privacy and data integrity

• No collection or storage of personally-identifiable information. The service states it should not collect or store PII.
• Mutual content-integrity guarantees for all data the app transmits, whether to the service or to other instances of the app. This is about being able to trust that transmitted content has not been altered.

Openness of the code

• Freely available for inspection and modification under the AGPLv3.
• No reliance on proprietary software or development tools.

Why the principles are framed this way

The About page ties these principles to the project's structure: RecipeRadar is registered as a Community Interest Company in the United Kingdom, and the page states its goals are "legally aligned with community benefit rather than to maximize shareholder profit." That legal form is the reason the principles read as commitments rather than marketing claims — the stated aims include helping people plan, cook and share meals, discover healthy and economical eating habits, reduce food wastage, and improve food safety and hygiene.

The open-source stance is also presented as a means rather than an end: the project argues that developing in the open, with users able to inspect, modify, and collaborate on the code, "produces significant additional value for everyone involved."

How to check these claims yourself

Because the code is published under the AGPLv3, the practical way to verify any of the above is to read the source rather than take the About page at face value. The page invites feedback and contributions, and describes the project as aiming to be "transparent and accountable" as it progresses toward the principles — which is a useful signal that some of them are aspirational today. If a specific principle matters to you (offline use, for example, or localization of your preferred units), treat it as something to test in the app rather than assume is complete.