OUR SERVICES
We redesign mobile apps that have fallen behind, poor retention, low App Store ratings, outdated visual design, or accumulated UX debt. Our process starts with data: analytics, user reviews, and usability testing.
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
A strategic redesign removes years of UX debt in one focused effort, unlocking conversion and retention improvements that incremental patches cannot achieve.
Clean UX architecture
Restructure navigation, information hierarchy, and user flows from first principles.
Unified design system
Establish a component library that makes future features 3x faster to design and build.
Performance reset
Rewriting screens removes accumulated technical and design debt in one pass.
Measurable uplift
Clients typically see 20-40% retention improvement after a research-led full redesign.
Lower risk
Change one screen at a time - users are never fully disrupted.
Faster to ship
First improvements live in weeks, not months.
A/B test each change
Validate each update with real data before the next iteration.
Lower upfront cost
Spread investment across quarters rather than a single project.
EXPERT GUIDANCE
Scope
All screens redesigned cohesively in one sprint cycle.
Timeline
8-16 weeks for research, design, and implementation.
UX Consistency
Guaranteed - single design system applied everywhere.
User Disruption
High at launch - mitigated with user testing beforehand.
ROI Timeline
Large improvements visible within 30-60 days of launch.
Best For
Apps with high churn, outdated UX, or upcoming rebrand.
Scope
One screen or flow at a time over several quarters.
Timeline
Ongoing - months to years to cover the full app.
UX Consistency
Risk of mixed patterns until all screens are updated.
User Disruption
Low - changes are gradual and familiar.
ROI Timeline
Compound gains accumulate slowly over 6-18 months.
Best For
Healthy apps optimizing specific funnels or onboarding.
Feature
Full Redesign
Incremental
DELIVERABLES
UX Audit Report
Prioritized list of UX friction points backed by analytics data, session recordings, and App Store review analysis.
New Info Architecture
Restructured navigation and content hierarchy based on user mental models and task frequency.
Visual Design System
Modern component library with updated typography, color, and spacing that passes WCAG AA contrast.
Interactive Prototype
High-fidelity Figma prototype with key user flows for stakeholder sign-off and user testing.
Phased Implementation
Delivered in shippable increments - no big-bang releases - so you can ship and measure impact continuously.
Post-Launch Review
30-day metrics report comparing retention, session length, crash rate, and App Store rating before and after.
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
We start with data, not assumptions. We analyze your Mixpanel or Amplitude funnels to find drop-off points, read every App Store and Google Play review in the past 12 months, watch FullStory session recordings of real users, and optionally run moderated usability tests. The audit surfaces a prioritized list of issues ranked by impact on retention and conversion before a single wireframe is drawn.
Usually both, because they are intertwined. Poor UX (confusing navigation, hidden features, unclear feedback) is often more responsible for churn than visual appearance. We address UX architecture first - navigation, task flows, content hierarchy - then apply updated visual design on top. A visual refresh without fixing underlying UX rarely moves retention metrics.
Yes. We design around your existing feature set unless specific features are being removed or restructured as part of the engagement scope. Our phased delivery approach means each increment is self-contained and shippable, so users always have a working app. We never deliver a big-bang redesign that replaces everything at once.
The design phase (audit, UX redesign, visual design, prototype) takes 4-8 weeks. Implementation of the redesign depends on app size - a moderate app with 20-30 screens takes 8-16 weeks to implement. We run design and development in parallel, designing ahead of the implementation sprint to avoid blocking developers.
Consistently, yes - when the redesign addresses the root causes of negative reviews. The most common causes of poor ratings are confusing onboarding, hidden core features, crashes, and slow performance. We target all four. Previous redesign engagements have improved average App Store ratings by 0.5-1.2 stars within 60 days of launch.
We redesign both. For React Native apps, we often update the component library, navigation structure (migrating to Expo Router or React Navigation v6+ if needed), and animation layer. For native iOS and Android apps, we introduce SwiftUI or Jetpack Compose for new screens while keeping stable legacy screens in UIKit or XML during the transition.
We design onboarding flows that orient existing users to changed navigation patterns - tooltips, overlay highlights, or a short "what's new" walkthrough. For major structural changes (e.g., reordering tab bar items), we use feature flags to roll out to a percentage of users first and monitor retention before full deployment.
When possible, yes. We use Firebase Remote Config or Statsig to A/B test specific redesign decisions - new onboarding flow vs. old, new navigation vs. old - with statistical significance thresholds before committing. This reduces the risk of a redesign harming metrics rather than improving them.
Yes. Performance is part of UX. During the implementation phase, we profile the app with Instruments (iOS) or Android Profiler, eliminate FlatList re-renders, reduce JS bridge overhead, lazy-load heavy screens, and optimize image loading. Improved perceived performance consistently correlates with higher retention and ratings.
The design phase produces a written UX audit report, revised user flow diagrams, wireframes for restructured screens, a complete Figma design file with the updated component library, and an interactive prototype of key flows. All Figma components follow an auto-layout and variant structure that accelerates developer handoff.
Yes. The audit report includes a prioritized roadmap scored by potential retention impact, implementation effort, and business risk. We recommend starting with the highest-impact, lowest-risk changes - typically onboarding and core task flows - to demonstrate value quickly before tackling deeper architectural changes.
A UX audit and design-only engagement ranges from $15,000-$35,000. A full redesign including implementation - accounts, payments, a content layer and an admin panel rebuilt on top of the new design - is 800-1,410 hours, or $24,000-$43,000 at our rate card. Larger apps with chat, real-time and offline sync are 1,240-2,310 hours, or $38,000-$70,000. We price the audit separately so you can validate the findings before committing to implementation. Price your own scope at kultrix.com/cost-calculator.
