OUR SERVICES
We write TypeScript across the entire stack, React frontends, Node.js backends, and shared libraries. Kultrix delivers codebases where types serve as living documentation, catch bugs at compile time, and make refactoring safe at any scale.
Tell us what you are building - what exists today, what it has to do and when it has to be live. We come back with the questions we need answered and a scoped estimate instead of a range.
EXPERTISE
OUR APPROACH
Choose the cooperation format that best fits your business goals and development velocity.
Fast launch to test your idea and gather user feedback with minimal investment.
What's included
Timeline Typically 9-16 weeks
Complete cycle from initial strategy and design to final launch.
What's included
Timeline Typically 20-40 weeks
Scale your team with expert developers to accelerate development.
What's included
Timeline Flexible / Long-term
OUR PROCESS
We specialize in creating user-centered & innovative solutions. Delivering seamless digital experiences.
EXPERT INSIGHTS
TypeScript catches entire classes of runtime bugs at compile time and makes large codebases dramatically easier to navigate and refactor.
Compile-time safety
Catch type mismatches, null errors, and wrong arguments before deploy.
IDE superpowers
Autocomplete, inline docs, and rename refactors work across all files.
Self-documenting code
Types serve as living documentation that never goes stale.
Safer refactoring
Change a type definition and the compiler shows every affected site.
Zero config
No compilation step - run files directly in Node or the browser.
Dynamic flexibility
Duck typing enables rapid prototyping without type ceremony.
Smaller team overhead
No tsconfig or type definition files to maintain.
Universal runtime
Runs natively everywhere without a build step.
EXPERT GUIDANCE
Error Detection
Caught at compile time - before code ships.
Refactoring Safety
Compiler tracks every usage of a renamed symbol.
Onboarding Speed
Types act as inline docs for new developers.
Build Step
Required - tsc or bundler transpiles to JS.
Library Support
DefinitelyTyped provides types for 8000+ packages.
Best For
Any production codebase with more than one developer.
Error Detection
Discovered at runtime - often in production.
Refactoring Safety
Manual search-and-replace; easy to miss cases.
Onboarding Speed
Must read implementation or comments to understand shape.
Build Step
Optional - run directly without compilation.
Library Support
No type information unless JSDoc comments added.
Best For
Quick scripts, small prototypes, solo experiments.
Feature
TypeScript
JavaScript
DELIVERABLES
Strict TS Config
Fully strict tsconfig with no implicit any, enabling maximum compile-time safety.
Shared Type Layer
Monorepo-shared types package consumed by frontend, backend, and mobile.
Zod Validation
Runtime schema validation aligned with TypeScript types for API boundaries.
tRPC Integration
End-to-end type-safe API layer eliminating client-server type drift.
TS Migration Plan
Incremental JavaScript-to-TypeScript migration with zero disruption to active development.
Type Coverage Report
type-coverage audit with a path to 95%+ coverage and explicit any elimination.
INDUSTRIES
We build powerful digital experiences across various sectors, ensuring your product meets unique market demands.
Data-driven commerce solutions that improve journeys, boost sales, and optimize operations.
Data-driven commerce solutions that improve journeys, increase sales, and optimize operations.
Reliable medical platforms that protect patient data, simplify workflows, and support clinical accuracy.
Product-driven platforms that enhance workflows, automate processes, and scale with your business.
CASE STUDIES
START YOUR PROJECT
Expert developers ready to deliver high-quality digital products.
INSIGHTS
Thirteen Ukrainian app development companies, each named with a link to its own site and described only from what that site claims. Alphabetical, no scores, no prices. Kultrix is one of the thirteen.
2026-08-26
What an app costs and how long it takes, in hours: a mobile base is 320-520 hours, all fifteen modules from 40-90 to 150-340 hours, and a plan built on 18 focused hours a week.
2026-08-24
How to choose a software development agency: what to ask, what to ask them to show, and how to compare two proposals by stripping the rates out and reading the hours.
2026-08-24
FAQ
TypeScript catches entire categories of bugs - undefined property access, incorrect function arguments, type mismatches - before code runs. It also makes refactoring safe: rename a type and the compiler tells you every affected call site. Teams consistently report 15-40% fewer runtime bugs after adopting TypeScript.
Yes, especially beyond the initial learning curve. TypeScript pays dividends as codebases grow - types become documentation, autocomplete becomes more accurate, and onboarding new developers is faster because intent is explicit in the code.
Yes. Kultrix always enables strict mode in tsconfig - strictNullChecks, noImplicitAny, strictFunctionTypes, and the full strict flag. Loose TypeScript configs give false confidence; strict mode is where the real safety benefits come from.
tRPC is a library that gives you end-to-end type safety between your TypeScript backend and frontend - no code generation, no OpenAPI schema, just shared types. It is ideal for Next.js full-stack projects where backend and frontend live in the same repo.
Types are erased at runtime, so API inputs and external data need runtime validation. We use Zod - it lets you define schemas that both validate at runtime and infer TypeScript types, keeping a single source of truth.
Yes. Kultrix performs incremental JS-to-TS migrations - we start by renaming files to .ts, enabling allowJs for gradual adoption, adding types file by file, and progressively tightening the config. The app stays deployable throughout.
In monorepos, we create a shared @repo/types or @repo/api-client package that exports interfaces and Zod schemas. Both the frontend and backend import from this package, ensuring API contracts never drift between client and server.
Yes. We use GraphQL Code Generator to produce TypeScript types from GraphQL schemas and queries. This means your React components have fully typed query results and your resolvers have typed arguments - no manual type maintenance.
Type coverage measures what percentage of your codebase has explicit types versus implicit any. Low coverage means TypeScript is giving you false confidence - the compiler cannot help where types are missing. We target 95%+ coverage on all TypeScript projects.
Prisma is the gold standard - it generates TypeScript types from your database schema, so your query results are fully typed without any manual work. Drizzle ORM is an alternative with a TypeScript-first schema definition that many teams prefer.
TypeScript type checking can be slow on large codebases, but we separate type checking from transpilation. We use esbuild or SWC for fast transpilation in dev/prod, and run tsc --noEmit only in CI for type checking. This gives fast builds without sacrificing safety.
It depends on the size of the codebase and how much of it is tested. We migrate incrementally - strict mode on new files, then module by module - so the project keeps shipping while types land, and we agree the milestones before starting instead of quoting a blanket window here. New TypeScript projects carry no overhead versus JavaScript when the config is right from day one.
