Arindma Singh
Contact

London-based Product and UX/UI Designer
for AI-powered products,
with a brand and graphic design foundation

Recent work spans across a D2C AI nutrition app and a post-surgery recovery platform and decision support system 0→1 for patients and clinicians (SaMD)

Selected work

All work
The redesigned Foodhak app, centred on the Faye coach
150K+Global downloads
150K+Global downloads

Foodhak: Redesigning a D2C Personalised Nutrition AI App

The AI underneath Foodhak was brilliant and deeply personal, but its intelligence sat buried across five siloed tools, and nothing pulled you back to feed it. This case study covers rebuilding those five tools around that intelligence as one coach, Faye, the states designed for AI uncertainty, and the daily loop that keeps users feeding it, because the AI only gets smarter the more you use it.

Foodhak · D2C AI nutrition app

Role
Product designer
Time
May 2025 – Jan 2026
Scale
150K+ downloads · ~37K monthly actives (UK + global)
A doctor reviewing a patient dashboard on a tablet
SaMDClinical trial
SaMDClinical trial

Post-surgery recovery tool for patients and a decision-support system for clinicians

Built for a surgery-agnostic 90-day clinical trial, designed as software as a medical device (SaMD). This case study covers how research findings became design decisions, the patient side, the clinician side, and designing inside SaMD limits.

Foodhak · Post-surgery recovery platform

Role
Sole Product designer
Time
January 2026 – Present

More case studies

Monetising a free AI app without selling personalisation Monetisation, 2025 Foodhak Packaging Redesign Packaging

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Experience

2024 to now

Foodhak

UX/UI Designer

Foodhak (D2C AI Nutrition App)

  • Redesigned and shipped a personalised AI nutrition app (150K+ downloads, ~37K MAU, 5 markets), unifying five siloed tools (assistant, logging, scanner, recipes, tracking) into one coherent experience.
  • Reframed the app around its intelligence, ‘Faye’, the personalised nutrition coach that became the spine of the product, turning health data, goals and wearable signals into RAG-grounded daily recommendations.
  • Designed error states and recovery flows that kept users informed about latency and protected their logs, while shaping AI copy to support trust and make recommendations feel appropriately qualified rather than overly certain.
  • Designed a logging-to-unlock engagement loop to drive daily retention and feed the AI more context; returning users rose from ~37% to ~50%.
  • Owned the freemium and monetisation strategy, benchmarked the subscription market, defined a principled free-vs-paid model and pitched it to stakeholders (greenlit to build).

Post-surgery recovery platform (clinical trial, Software as a Medical Device)

  • Sole designer, zero to testable product, on a two-sided clinical platform: a patient app and clinician dashboard, for 90-day post-surgical recovery.
  • Translated medical-device regulatory limits into design rules that defined what the product could surface to patients and clinicians.
  • Designed adherence logging for anxious, clinically directed patients.
London
See full experience