Services — One Tone Line

01 — SERVICE

Mobile Game Development

Full-cycle production of casual, mid-core and hyper-casual titles for iOS and Android — from the first prototype to the store release.

Game design document, core loop and economy modelling
Playable prototype before the production budget is committed
Unity, Godot and native builds for iOS and Android
Ad networks, in-app purchases and analytics wired in from day one

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02 — SERVICE

Mobile Application Development

Practical applications that solve a clear business problem: booking, client portals, internal tools, e-commerce and subscription products.

Customer booking apps and service management platforms
Internal business tools and staff applications
E-commerce, subscription and client portal products
Release management and store submission handled for you

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03 — SERVICE

MVP Development for Startups

A focused first version that proves the idea with real users, built in a fixed scope and a predictable budget.

Scope workshop that separates “must ship” from “later”
Working build in 8–14 weeks depending on complexity
Instrumented from the start so results are measurable
Clean architecture that survives the next funding round

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04 — SERVICE

iOS and Android Applications

Native builds when performance, platform APIs or store features matter more than shared code.

Swift and Kotlin codebases built to platform guidelines
Deep links, push notifications, widgets and background work
App Store and Google Play review preparation
Accessibility and device-size coverage checked before release

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05 — SERVICE

Cross-Platform App Development

One codebase, two stores. The pragmatic choice when time to market and budget lead the decision.

Flutter and React Native for applications
Unity and Godot for games and interactive products
Shared design system across both platforms
Native modules added only where they are actually needed

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06 — SERVICE

UI/UX Design and Prototyping

Interface design, game UI and clickable prototypes that are tested with users before a single line of production code.

User journeys, wireframes and clickable prototypes
Game UI, HUD, menus, onboarding and store screens
Design system and component library you keep
Art direction, 2D assets, icons and store creatives

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07 — SERVICE

Business Process Automation

Manual routines turned into software: bookings, approvals, reporting, inventory and internal workflows.

Process mapping before anything is built
Automated bookings, approvals and notifications
Dashboards and reports for the people who need them
Role-based access for teams and departments

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08 — SERVICE

API and Third-Party Integrations

Your product connected to the services it depends on — payments, CRM, analytics, ad networks and internal systems.

Payments, subscriptions and in-app purchase validation
CRM, ERP and internal system integrations
Ad mediation, attribution and analytics pipelines
Custom REST and GraphQL back ends where required

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09 — SERVICE

Application Maintenance and Support

Someone responsible for your product after launch: OS updates, store policy changes, crashes and small improvements.

Monthly OS, SDK and store compliance updates
Crash monitoring with an agreed response time
Small feature releases on a predictable schedule
Handover documentation kept up to date

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10 — SERVICE

Game Art and Animation

2D and 3D art production that keeps a consistent style across characters, environments, UI and marketing assets.

Concept art, characters, props and environments
Skeletal and frame-by-frame animation
VFX, particles and juice passes for the core loop
Store creatives, icons and playable ad assets

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11 — SERVICE

LiveOps, Analytics and Monetisation

What happens after release: events, balancing, A/B tests and the numbers that tell you whether the game works.

Event calendars, seasons and content updates
Economy balancing based on live data
A/B tests on onboarding, pricing and ad placement
Retention, ARPDAU and LTV reporting you can act on

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12 — SERVICE

QA, Device Testing and Release

Structured testing on real devices, so the first review your players write is about the game and not the crashes.

Functional, regression and soak testing
Real-device matrix covering low-end Android
Performance, battery and build-size profiling
Store submission, review fixes and staged rollout

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Services That Cover the Whole Product

Mobile Game Development

Mobile Application Development

MVP Development for Startups

iOS and Android Applications

Cross-Platform App Development

UI/UX Design and Prototyping

Business Process Automation

API and Third-Party Integrations

Application Maintenance and Support

Game Art and Animation

LiveOps, Analytics and Monetisation

QA, Device Testing and Release

Fixed Scope, Fixed Price

Dedicated Team

Co-Development

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