Software, web & mobile apps · Intelligent automation

Proven at national scale. Built for yours.

Datalk was the technology partner for India's second National Mental Health Survey, funded by the Government of India and run across all 36 states and union territories. We bring the same engineering to product teams, businesses, institutions and governments.

  • Products and apps Software shaped around your users
  • Super Intelligence (SI) Practical automation, human judgement
  • Connected systems Backends, data and infrastructure
  • Planning and support Clear scope and agreed responsibilities

What we believe

The application is only part of the work.

Useful software connects people, information and everyday work.

The systems behind it need a clear scope, a connected foundation and agreed support after launch.

We plan those responsibilities in one engagement.

How information is stored, how services connect and how the software is supported are considered together, with scope and priorities shaped around your project.

Experience from national delivery. A technical approach shaped around your project.

Flagship programme:Technology partner

National Mental Health Survey 2 (NMHS-2)

We built the technology behind the world's largest psychiatric epidemiology survey.

250,000+Interviews with adults and adolescents

36Indian states and union territories

What we built

  • Nationwide survey infrastructure
  • Digitised WHO FLII‑11
  • Multilingual interviews
  • Offline data collection
  • Field‑to‑server sync
  • Central data management

Conducted by the National Institute of Mental Health and Neurosciences (NIMHANS), Bengaluru, and funded by the Ministry of Health and Family Welfare, Government of India.Conducted by NIMHANS, Bengaluru; funded by the Ministry of Health and Family Welfare, Government of India. NMHS-2 programme overview (external site)

Delivery scope

Plan the software and the systems behind it.

The complete platform

  1. 01Architecture and plan

    Define what the software needs to do, how its parts connect and the delivery priorities, with running costs considered from the start.

  2. 02Cloud infrastructure

    Choose the operating environment around the workload, data requirements and budget, with deployment and maintenance planned alongside it.

  3. 03Services and APIs

    Backend services and APIs connect the application with its data and business rules, with access requirements defined for each role.

  4. 04Data and analytics

    Plan how information is stored, prepared and presented, so reports and dashboards answer the questions your team needs to ask.

  5. 05Web and mobile apps

    Build around the tasks people need to complete, their devices and the conditions they work in, including offline use where required.

  6. 06Security, monitoring and support

    Access control, deployment and monitoring are considered across the platform, with support defined around the agreed scope and period of operation.

Selected work

See what we have built.

Mobile applications, research platforms, an annual reporting system and a website with a custom CMS. Each connects the application people use with the infrastructure and data behind it.

Explore the Projects
  • Website & custom CMS

    N-SPRITE

    NIMHANS suicide prevention initiative

    A public website and custom content management system for a NIMHANS initiative, with the backend and infrastructure delivered as part of the same project.

  • Mobile app & analysis platform

    USHAS

    Urban Self-Harm Study

    A mobile app and analysis platform for the Urban Self-Harm Study, with the infrastructure and backend connecting them.

  • Mobile app & analysis platform

    SAMASTH

    Systems Approach for Management of Self-Harm

    A mobile app and analysis platform for Systems Approach for Management of Self-Harm, with the infrastructure and backend Datalk delivered.

  • Web application

    ARMS 2.0

    Annual Report Management System · NIMHANS

    A reporting application for NIMHANS that connects contributions, departmental review and publication in one system, with access based on each person's role.

Why Datalk

Experience you can examine. Responsibilities you can agree.

  1. Experience in active use

    Our work includes offline field applications, reporting workflows and research platforms, supported while teams relied on them.

  2. Connected delivery responsibilities

    Applications, backends and infrastructure are planned together. The engagement sets out which responsibilities Datalk takes on.

  3. A scope you can review

    Requirements, priorities and review criteria give you a clear basis for judging progress and considering changes.

  4. Support agreed before launch

    Handover, support responsibilities and duration are defined for each engagement. Our research experience includes support throughout fieldwork.

Scale and value

Build what matters now. Plan for what comes next.

A first release and a national platform need different technical choices. We consider your users, operating conditions and budget, then agree what to build first and which future requirements to plan for.

Super Intelligence (SI) is Datalk's approach to combining intelligent tools, data expertise and human judgement. We begin with a defined task and a clear way to evaluate the result.

Context first, then the approach

Understood first

Multiple locations

Stakeholder groups

Substantial information needs

Technical approach

Shaped around

Required scale

Available budget

Delivery priorities

Diagram: the project's context (multiple locations, stakeholder groups and substantial information needs) is understood first, then the technical approach is shaped around the required scale, the available budget and the delivery priorities.

Technology

Proven tools, chosen for the job.

Modern web, mobile, cloud and SI tools, chosen for what each project needs and for the team that will look after the system once it is live.

Web

  • React
  • Next.js
  • Vue.js
  • Nuxt
  • Angular
  • Svelte
  • Astro
  • TypeScript
  • Tailwind CSS
  • Vite
  • Three.js
  • GSAP

Mobile

  • Flutter
  • React Native
  • Kotlin
  • Swift
  • Android
  • iOS
  • Jetpack Compose
  • Expo
  • Firebase

Backend & data

  • Node.js
  • NestJS
  • Python
  • Django
  • FastAPI
  • Laravel
  • .NET
  • Java
  • Spring Boot
  • Go
  • GraphQL
  • PostgreSQL
  • MySQL
  • MongoDB
  • Redis
  • Elasticsearch
  • Apache Kafka

Cloud & DevOps

  • AWS
  • Google Cloud
  • Microsoft Azure
  • Cloudflare
  • DigitalOcean
  • Vercel
  • Docker
  • Kubernetes
  • Terraform
  • GitHub Actions
  • Linux
  • Nginx
  • Grafana
  • Prometheus

SI & data science

  • OpenAI
  • Claude
  • Google Gemini
  • Mistral AI
  • Hugging Face
  • LangChain
  • LangGraph
  • Ollama
  • PyTorch
  • TensorFlow
  • scikit-learn
  • pandas
  • NumPy
  • Jupyter
  • R
  • Apache Spark
  • Databricks
  • Qdrant

Data & Research Analytics

Analysis you can understand and use.

Datalk provides statistical analysis and advanced analytics for researchers and institutions. We connect the research question, study design and available data to an appropriate method, then explain the findings and their limitations.

Explore Data & Research Analytics

Question, method, interpretation

  1. Research question

    What the study needs to answer

  2. Analytical method

    Suited to the design and the data

  3. Interpretation

    Understood and used with care

The research question decides the analytical method, and the method leads to an interpretation of the findings. The chart shows the method, not actual results.

Tell us what you need the software to do.

Share the problem, the people involved and where the project stands. We will help you work out the technical scope and the next decisions.