Praneeth Kawya Thathsara

UI/UX Animation, UI Animation, and Rive Animation in Sri Lanka

I’m Praneeth Kawya Thathsara, a Rive Animator, Rive Character Animator, Interactive Mascot Designer, and digital product builder specializing in production-ready Rive animation systems for mobile apps, SaaS products, AI applications, games, and websites.

I’m the Founder of Kanthaka Labs, Mascot Engine, and UI Animation.

I help startups, founders, developers, product teams, SaaS companies, and creative agencies turn static characters and ideas into interactive digital experiences that feel more engaging, responsive, memorable, and human.

My core expertise includes Rive mascot animation, Rive character animation, interactive app mascots, AI companion animation, 2D character rigging, Rive State Machines, UI animation, gamification animation, and developer-ready Rive systems.

I build interactive characters that can respond to user actions, app states, voice, rewards, progress, achievements, emotions, loading states, correct and incorrect answers, touch, hover, cursor movement, and real-time product events.

My Rive services include:

• Rive Mascot Animation
• Rive Character Animation
• Interactive App & SaaS Mascots
• AI Companion & AI Assistant Animation
• 2D Character Rigging in Rive
• Rive State Machines
• Triggers, Boolean & Number Inputs
• Character Expressions & Reactions
• Idle, Success, Reward, Error & Loading States
• Lip Sync, Visemes & Speaking Animation
• Eye Tracking & Cursor Tracking
• Gamification & Progress Animation
• Achievement & Level-Up Animation
• UI Animation & Microinteractions
• Onboarding & Empty-State Animation
• Interactive Icons & Hero Animation
• Responsive Rive Artboards
• Reusable Rive Components
• Rive Performance Optimization
• Developer-Ready .riv Files

I create Rive animation systems for Flutter, React Native, React, web apps, SaaS platforms, mobile products, AI tools, educational apps, gamified products, productivity apps, fitness products, habit trackers, and interactive websites.

My work is designed for real implementation. I focus on clean State Machines, reusable components, organized assets, scalable animation logic, lightweight files, responsive layouts, clear input naming, smooth transitions, and developer-friendly handoff.

I work across the full production process — from early character direction and interaction planning to rigging, animation, State Machine architecture, testing, optimization, and final delivery. I can work from an existing character design or help shape the interaction direction before animation begins.

A major part of my work is building mascots and AI companions that are not just decorative. I design them to become functional parts of the product experience — helping with onboarding, feedback, guidance, rewards, gamification, progress, conversation, engagement, and product personality.

Through Mascot Engine, I focus on interactive Rive mascots, app characters, AI companions, virtual characters, and reusable character animation systems for startups, SaaS products, mobile apps, and digital platforms.

Through UI Animation, I work on UI motion, microinteractions, onboarding experiences, animated interfaces, interactive icons, hero animations, product feedback states, and motion systems for web and mobile products.

Through Kanthaka Labs, I explore and build independent web and mobile products, AI-powered experiences, interactive tools, experimental interfaces, and new digital product ideas. Kanthaka Labs is where I combine product thinking, design, animation, AI, technology, branding, prototyping, and experimentation to turn ideas into useful digital experiences.

I’m especially interested in products that combine interactive characters, AI, gamification, motion, real-time user feedback, and human-centered digital experiences.

I enjoy collaborating closely with developers and product teams so animation is planned around real implementation requirements, not treated as a separate visual layer. My goal is to deliver animation systems that are easier to integrate, maintain, reuse, and scale as the product grows.

Whether you need a single interactive mascot, a complete character state system, an AI companion, or a scalable Rive animation framework, I can help plan the interactions and turn the concept into a polished, implementation-ready experience.

I work with clients worldwide and am open to freelance projects, startup collaborations, agency partnerships, product partnerships, white-label animation work, and long-term Rive animation support.

If you’re looking for a Rive Animator, Rive Expert, Rive Character Animator, Rive Mascot Animator, Interactive Mascot Designer, App Mascot Animator, AI Companion Animator, Interactive Character Animator, UI Animator, or product-focused motion designer for your app, SaaS product, AI product, game, or website, send me your character, product idea, interaction flow, or project brief.

Portfolio & Rive Mascot Services:
MascotEngine.com

  • Education
    • Rive App
    • Rive Animations + Rive Animator