---
title: "Rikka — Shape the world's snow - Reviews, Revenue and Downloads in United States | Apple App Store"
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"
---

# Rikka — Shape the world's snow — United States
> Snowflakes from live weather

![Rikka App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/79/b6/84/79b684b6-e63d-98d4-d55f-5e9e4b676a22/AppIcon-0-0-1x_U007emarketing-0-11-0-85-220.png/434x0w.png)

**Developer:** [ONTRAILS](https://apptail.io/developer/ontrails-SUW) (Japan)
**Category:** Graphics Design
**Rating:** 4.0/5 (3 ratings)
**Price:** Free
**Bundle ID:** com.tetsutaroyano.Rokka
**Store:** Apple App Store
**Country:** United States
**Version:** 1.0.89 (released 2026-08-31)
**Original Release:** 2024-10-10
**Languages:** Japanese, English

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id6736791492)
**AppTail Page:** [https://apptail.io/app/rikka-shape-the-worlds-snow-mOUt/united-states](https://apptail.io/app/rikka-shape-the-worlds-snow-mOUt/united-states)

## Rikka 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.

## Rikka Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/56/bc/58/56bc586c-b808-c867-dc89-59c744b9d8aa/Slice_1.jpg/1242x2688.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/06/95/45/06954533-eeb1-0efd-9f53-91f524ef5732/Slice_2.jpg/1242x2688.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/b9/32/e6/b932e629-69fd-c477-5b2d-e801f0530d5a/Slice_3.jpg/1242x2688.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/60/e0/ba/60e0ba9f-628e-7e86-8b11-8a40674f5547/Slice_4.jpg/1242x2688.png)

## Rikka Rating Breakdown in United States
- 5 stars: 1 (33%)
- 4 stars: 1 (33%)
- 3 stars: 1 (33%)
- 2 stars: 0 (0%)
- 1 stars: 0 (0%)






## Rikka Available In
- [United States](https://apptail.io/app/rikka-shape-the-worlds-snow-mOUt/united-states)
- [Japan](https://apptail.io/app/rikka-shape-the-worlds-snow-mOUt/japan)
- [Azerbaijan](https://apptail.io/app/rikka-shape-the-worlds-snow-mOUt/azerbaijan)
- [Belgium](https://apptail.io/app/rikka-shape-the-worlds-snow-mOUt/belgium)
- [Brunei](https://apptail.io/app/rikka-shape-the-worlds-snow-mOUt/brunei)
- [Brazil](https://apptail.io/app/rikka-shape-the-worlds-snow-mOUt/brazil)
- [Chile](https://apptail.io/app/rikka-shape-the-worlds-snow-mOUt/chile)
- [China](https://apptail.io/app/rikka-shape-the-worlds-snow-mOUt/china)
- [Czechia](https://apptail.io/app/rikka-shape-the-worlds-snow-mOUt/czechia)
- [Germany](https://apptail.io/app/rikka-shape-the-worlds-snow-mOUt/germany)
- [Dominican Republic](https://apptail.io/app/rikka-shape-the-worlds-snow-mOUt/dominican-republic)
- [Algeria](https://apptail.io/app/rikka-shape-the-worlds-snow-mOUt/algeria)
- [Ecuador](https://apptail.io/app/rikka-shape-the-worlds-snow-mOUt/ecuador)
- [Egypt](https://apptail.io/app/rikka-shape-the-worlds-snow-mOUt/egypt)
- [Spain](https://apptail.io/app/rikka-shape-the-worlds-snow-mOUt/spain)
- [Hungary](https://apptail.io/app/rikka-shape-the-worlds-snow-mOUt/hungary)
- [Indonesia](https://apptail.io/app/rikka-shape-the-worlds-snow-mOUt/indonesia)
- [Ireland](https://apptail.io/app/rikka-shape-the-worlds-snow-mOUt/ireland)
- [Israel](https://apptail.io/app/rikka-shape-the-worlds-snow-mOUt/israel)
- [Kuwait](https://apptail.io/app/rikka-shape-the-worlds-snow-mOUt/kuwait)
- [Lebanon](https://apptail.io/app/rikka-shape-the-worlds-snow-mOUt/lebanon)
- [Luxembourg](https://apptail.io/app/rikka-shape-the-worlds-snow-mOUt/luxembourg)
- [Malaysia](https://apptail.io/app/rikka-shape-the-worlds-snow-mOUt/malaysia)
- [Nigeria](https://apptail.io/app/rikka-shape-the-worlds-snow-mOUt/nigeria)
- [Romania](https://apptail.io/app/rikka-shape-the-worlds-snow-mOUt/romania)
- [Russia](https://apptail.io/app/rikka-shape-the-worlds-snow-mOUt/russia)
- [Saudi Arabia](https://apptail.io/app/rikka-shape-the-worlds-snow-mOUt/saudi-arabia)
- [Thailand](https://apptail.io/app/rikka-shape-the-worlds-snow-mOUt/thailand)
- [Türkiye](https://apptail.io/app/rikka-shape-the-worlds-snow-mOUt/turkey)
- [Ukraine](https://apptail.io/app/rikka-shape-the-worlds-snow-mOUt/ukraine)
- [Armenia](https://apptail.io/app/rikka-shape-the-worlds-snow-mOUt/armenia)
- [Vietnam](https://apptail.io/app/rikka-shape-the-worlds-snow-mOUt/vietnam)
- [Argentina](https://apptail.io/app/rikka-shape-the-worlds-snow-mOUt/argentina)

---

## About AppTail

[AppTail](https://apptail.io) is a mobile app intelligence platform providing app analytics, ASO (App Store Optimization) tools, keyword tracking, competitor analysis, revenue estimates, and review monitoring for iOS App Store apps. Track your app's performance, discover ranking keywords, monitor competitors, and analyze market trends.

- [Search Apps](https://apptail.io)
- [Top Charts](https://apptail.io/top-iphone-apps)
- [Sign Up for Full Access](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=footer)

*Data provided by [AppTail](https://apptail.io) - Mobile App Intelligence Platform*