Comparison

Moiré / Interference vs Rikka

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Moiré / Interference

Generate and explore dynamic Moiré patterns with animated visuals. Combine different shapes, customize colors, and interact with 3D controls for a unique artistic experience. Perfect for creative minds and pattern enthusiasts.

Highlights
  • Animated Moiré patterns
  • Pause and play animations
  • Layered pattern combinations
  • Interactive 3D controls
  • Customizable colors and settings
  • High-quality graphics
Features
Read full description

Unleash Your Creativity with Moiré / Interference! Moiré / Interference is an enthralling iOS app that allows you to generate and explore the dynamic world of Moiré patterns. Perfect for enthusiasts and creative minds alike, this app blends art with interactive technology to offer a canvas of visual wonders. Key Features: - Animated Patterns: Watch as Moiré patterns fluidly evolve in mesmerizing animations, showcasing a continuous dance of shapes and lines. - Pause & Play: Have a particular pattern you love? Freeze the animation any time to study or manipulate the static image, then resume to see it in motion again. - Layer Dynamics: Combine different patterns like Lines, Dots, Circles, Squares and Hexagons, and shift layers against each other for enhanced visual effects and new discoveries. - Interactive 3D Controls: Zoom, tilt, and shift your view to explore the patterns from all angles, creating a truly immersive experience. - Customize Your Experience: Change colors and configure settings to create visuals that align with your aesthetic preferences. Whether bright and bold or subtle and sophisticated, control is at your fingertips. - High-Quality Graphics: Enjoy beautifully rendered graphics that maintain clarity at every zoom level, ensuring your visual exploration is always crystal clear. Moiré / Interference invites artists, designers, educators, and anyone intrigued by the beauty of pattern interactions to delve into a unique artistic experience. Whether you're looking to understand the underlying principles of Moiré effects or just want to relax with a visually engaging activity, this app is your gateway to an extraordinary exploration. Download now and start shaping your own world of dynamic and static patterns!

About

Rikka

Witness the real-time growth of unique, six-fold symmetric crystals based on live weather data from snowy cities. Explore how temperature, humidity, wind, and pressure influence crystal complexity and density. Each crystal's origin city is displayed, allowing you to locate it on a map.

Highlights
  • Real-time crystal growth simulation
  • Live global weather data integration
  • Crystals shaped by temperature, humidity, wind, and pressure
  • Unique, six-fold symmetric designs
  • Origin city identification and mapping
  • Algorithmically generated natural art
Read full description

Tap the screen and watch a hexagonal cellular automaton grow a breathtaking, six-fold symmetric crystal in real time. Weather data is pulled live from snowy cities around the world — and every crystal takes its shape from the snow falling somewhere on Earth right now. Temperature →Complexity — The colder the place, the more intricate the branching Humidity → Density — Higher humidity spreads side branches more densely Wind → Variation — Stronger winds create irregular, one-of-a-kind forms Pressure → Ripple patterns — Lower pressure introduces ring-like modulations No two crystals are ever the same. Nature decides the shape. The algorithm draws it. The city whose weather inspired each crystal is shown on screen — and you can always find it on a map.

Screenshots

Moiré / Interference4 screens
Rikka4 screens

Verdict

The call

The clearest difference is price: Rikka at Free against Moiré / Interference's $0.99. Rikka also leads on update cadence (weekly vs every 19 months). Moiré / Interference's advantage is rating (4.8 vs 4.0) and ads (none vs shown). On ratings volume, in-app purchases, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Rikka is free to download; Moiré / Interference costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Moiré / Interference holds the better App Store score, 4.8 against 4.0. Both are backed by a comparable volume of ratings — 4 and 3 respectively.

UpkeepUpdate frequency

Moiré / Interference ships an update every 19 months, Rikka weekly. The most recent releases landed on October 30, 2026 and October 24, 2026 respectively.

Scorecard5 real differences · 5 level
Moiré / Interference versus Rikka: the parameters behind the verdict, then further details
ParameterMoiré / InterferenceRikka
Price$0.99Free — better
Rating4.8 (4 ratings) — better4.0 (3 ratings)
Positive reviews100.0% of reviews—
Number of ratings4 — better3
Update frequencyEvery 19 monthsWeekly — better
AdsNo — betterYes
In-app purchasesNoNo
MonetizationPaidAd-supported — better
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.615.0 — better
Further details — not scored
Size29 MB24 MB
Age rating4+4+
DeveloperPhilippe ZayONTRAILS

Customer experience

Moiré / Interference

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Rikka

All ratings3 ratings
Positive66.7%
Neutral33.3%
Negative0.0%

In-app purchases

None

Moiré / Interference

No in-app purchases

None

Rikka

No in-app purchases

Questions

Is Moiré / Interference free?
Moiré / Interference costs $0.99, with no in-app purchases.
Is Rikka free?
Rikka is free to download, with no in-app purchases.
Which has better reviews, Moiré / Interference or Rikka?
Moiré / Interference is rated higher. Moiré / Interference averages 4.8 out of 5 from 4 ratings, while Rikka averages 4.0 from 3 ratings.
Do Moiré / Interference or Rikka have ads?
Rikka shows ads; Moiré / Interference does not.
Which is updated more often, Moiré / Interference or Rikka?
Moiré / Interference ships an update every 19 months, and Rikka weekly. Most recently, Moiré / Interference was updated on October 30, 2026 and Rikka on October 24, 2026.

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