Simplileap

// Design

Interaction Design

The feeling of using a product is determined by its interactions — how elements animate, respond, and transition. We design interactions that are purposeful, performant, and perceptually satisfying.

// Key benefits

What makes this service valuable

Purposeful micro-interactions

Loading states, success animations, error feedback, and hover effects are opportunities to communicate and delight. We design every state transition with intention.

Performance-aware motion

Heavy animations kill performance and accessibility. Every motion we specify is designed with duration, easing, and reduced-motion alternatives that engineers can implement without compromising Core Web Vitals.

Prototype-level fidelity

Interaction design is specified through high-fidelity Figma prototypes and detailed animation specs — not vague descriptions that engineers have to interpret.

// Details

Making products feel alive

Interaction design sits between UI design and engineering — it is the specification of how things move, respond, and communicate through animation and motion. When done well, it is invisible: users feel a sense of quality without being able to articulate why.

We design interactions using a motion system — consistent easing curves, duration scales, and animation principles that create coherence across the product. This system is documented for engineering use with Framer Motion, CSS animations, or platform-native animation frameworks.

// What this includes

  • Motion system definition (easing, duration scale, principles)
  • Micro-interaction design for all interactive states
  • Page and screen transition design
  • Loading, empty, and skeleton state animations
  • Gesture-driven interaction design (swipe, pinch, drag)
  • Reduced-motion alternatives for accessibility
  • Engineering specification with animation values

// Deliverables

What you receive

Every engagement produces clear, documented deliverables. Here is exactly what is included in our interaction design service.

  • 01Motion system specification document
  • 02Figma prototype with interaction annotations
  • 03Micro-interaction inventory with specifications
  • 04Animation values (duration, easing, delay) for engineering
  • 05Reduced-motion variant specifications
  • 06Framer Motion / CSS animation reference code (optional)

// FAQ

Common questions about interaction design

How do interaction design specs get handed off to engineering?+

We provide Figma Smart Animate prototypes showing intended behaviour, plus a written specification with duration values, easing curves, and trigger conditions. Where helpful, we provide reference implementation snippets in Framer Motion or CSS.

Do you design for prefers-reduced-motion?+

Yes — reduced-motion is a design constraint, not an engineering concern. Every animation we specify has a reduced-motion alternative that removes or minimises motion while preserving functional feedback.

Can interaction design be added to an existing design system?+

Yes — adding a motion layer to an existing design system is a common engagement. We audit current animation use, define motion principles, and extend the design system with interaction documentation.

Ready to get started with interaction design?

Share your requirements with our team. We respond within one business day with a clear plan from discovery to delivery.