OPTIKKLAS STUDIO

Mobile Apps
That Scale & Earn

Full-cycle mobile game & app development studio. From concept to App Store — we engineer high-performance Android & iOS products that solve real business challenges.

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80+
Apps Launched
5M+
Total Installs
7 Yrs
Experience
Since
2019
Kyiv, Ukraine
Total Installs
5M+
+32%
Apps Launched
80+
Client Rating
Currently Available
About Us

A Studio Built on
Product Thinking

OPTIKKLAS STUDIO is a full-cycle mobile development team based in Kyiv, Ukraine. Since 2019 we have been crafting high-performance, commercially effective applications for Android and iOS — from the initial concept through scaling and ongoing growth.

Mobile First Revenue-Driven Agile Sprints
Performance-First Architecture
Engineered for speed, stability and high load — no shortcuts, no tech debt.
Monetization That Scales
AdMob, IAP and subscriptions integrated with proven strategies that maximize LTV.
Transparent Delivery
Shared board, weekly demos and CI/CD pipelines that keep every release on schedule.
Dedicated Team Model
Dev, design, QA and PM — fully committed to your project's success.
Learn More About Us
DL + 24
Engineering team
Ready to start in 48h
What We Do

Services That Turn
Ideas Into Revenue

We cover the full development lifecycle — one reliable partner from idea validation to post-launch growth. No handoffs between agencies, no lost context.

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01
Product Discovery
& Analytics
Market research, competitor analysis, monetization modelling and feature prioritisation before a single line of code.
Research Strategy LTV Model
02
UX / UI
Design
Pixel-perfect interfaces built for engagement and conversion. Prototypes tested with real users before development begins.
Figma Prototyping Design System
Most Popular
03
Native & Cross-
Platform Development
Kotlin for Android, Swift for iOS, Flutter and React Native for cross-platform — chosen to fit your product needs and budget.
Kotlin Swift Flutter React Native
04
Backend
& API
Scalable REST and GraphQL APIs built with Python or Node.js, deployed on resilient cloud infrastructure.
FastAPI Django PostgreSQL
05
Payments &
Monetization
Google Pay, Apple Pay, Stripe, subscriptions, AdMob and affiliate networks for maximum revenue and LTV.
Stripe IAP AdMob
06
Publishing
& Growth
App Store and Google Play publishing, ASO, analytics dashboards, ongoing features and technical support.
ASO Firebase AppsFlyer
Not sure what you need?
We'll audit your idea for free and recommend the right scope.
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Portfolio

Featured Case Study

01 / 01 Latest Release
Daily Energy Level Notes — Screenshot 2
Daily Energy Level Notes — Screenshot 1
Daily Energy Level Notes — Screenshot 3
4.8
Play Store
120K+
Active Users
Android Health Productivity Free

Daily Energy Level Notes

A specialized vitality tracker built for Android. Users log their energy, mood and activities throughout the day and receive actionable analytics on what drives their performance — all in a native Kotlin + Jetpack Compose app.

120K+
Installs
4.8
App Rating
40+
Countries
Tech Stack
Kotlin Jetpack Compose Room Firebase Coroutines
GET IT ON
Google Play
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Technology

Our Tech Stack

Battle-tested, modern technologies chosen for performance, scalability and long-term maintainability.

Kotlin
Android
Swift / SwiftUI
iOS
Flutter
Cross-Platform
React Native
Cross-Platform
Python / Django
Backend
FastAPI
Backend
Node.js
Backend
PostgreSQL
Database
Firebase
Analytics
Docker
DevOps
GitHub Actions
CI / CD
AppsFlyer
Attribution
Testimonials

What Our Clients Say

We measure our success by the results our clients achieve — not just by delivered code.

★★★★★
"

OPTIKKLAS delivered our fitness tracking app ahead of schedule. The architecture they chose handled 200k+ users at launch without a single crash. Exactly what we needed.

James Mitchell
James Mitchell
CEO, FitLoop Inc.
★★★★★
"

The team truly understands monetization. They integrated AdMob and a subscription model in a way that felt native — our ARPU doubled compared to our previous app.

Sofia Kovalenko
Sofia Kovalenko
PM, NovaByte
★★★★★
"

Professional, communicative and technically excellent. They rebuilt our legacy Android app in Kotlin with Jetpack Compose — the result is night and day.

Andrei Radu
Andrei Radu
CTO, MobiStream
FAQ

Frequently Asked Questions

Everything you might want to know before we start working together.

How long does it take to develop a mobile app?

Timeline depends on complexity. A focused MVP typically takes 8–14 weeks; a feature-rich app with custom backend 4–7 months. We provide a precise estimate after the discovery phase.

Do you build for both Android and iOS?

Yes. We develop native Android (Kotlin), native iOS (Swift), and cross-platform solutions (Flutter, React Native). We help you choose the best approach based on your goals and budget.

Can you take over an existing project?

Absolutely. We regularly perform code audits, take over legacy projects and refactor them for performance, maintainability and scalability. A technical audit is always the first step.

What does the development process look like?

We work in 2-week sprints using agile methodology. Each sprint includes planning, development, QA and a client demo. You have full visibility via a shared project board and weekly calls.

Do you provide post-launch support?

Yes. We offer flexible SLA-based support packages that include bug fixing, OS update compatibility, performance monitoring and feature development. Long-term partnerships are our preference.

How is the project cost determined?

We work with both fixed-price and time-and-material models. After the discovery phase we deliver a detailed breakdown by feature. No hidden fees — ever.

Ready to Build?

Let's Create Your Next App

Tell us your idea — we'll turn it into a product that earns, scales and stands out in the market.

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