Report updated Jun 4, 2026
雨降りアラート: お天気ナビゲータ
For users in Japan requiring hyper-local, real-time precipitation monitoring for daily planning and disaster prevention.
雨降りアラート: お天気ナビゲータ is an established weather app that is free with in-app purchases.
What is 雨降りアラート: お天気ナビゲータ?
雨降りアラート is a weather monitoring app for Japanese users, providing municipal-level rain cloud alerts and radar data on iOS.
Users hire this app for immediate, low-friction rain warnings, allowing them to plan daily activities without manually checking weather forecasts.
Current Momentum
v6.0 · 67mo ago
Zombie- No notable signals last 3 months.
What makes this app unique?
What Does It Look Like?
What Are The Key Features?
Push notifications for rain cloud approach based on user-defined municipal regions
Visual precipitation tracking updated every 5 minutes on the home screen
Watch face data updates every 60 minutes for precipitation status
How much does it cost?
- Free version with basic alerts and radar
- PRO subscription for advanced forecasts and disaster data
Freemium model uses basic utility to drive installs, gating specialized meteorological data behind a PRO subscription.
Who Built It?
日本気象株式会社
Providing hyper-localized weather and seasonal event forecasting to help travelers and residents plan around environmental conditions in Japan.
Portfolio
10
Apps
What other apps does 日本気象株式会社 make?
Sakura Navi - Forecast in 2026
熱中症アラート: お天気ナビゲータ
雷アラートPRO - お天気ナビゲータ
雨降りアラートPRO - お天気ナビゲータ
防災アラートPRO
てんきとくらす tenki to kurasu
Explore the full 日本気象株式会社 report
Portfolio breakdown, audience, momentum, and every app published by 日本気象株式会社.
What do users think recently?
Analysis in progress, available soon
What is the competitive landscape for 雨降りアラート: お天気ナビゲータ?
How's The Weather Market?
How does it evolve in the Weather market?
The app holds a #52 Free position in the Hong Kong category, indicating potential for regional reach, but the lack of recent updates limits its ability to compete with top-tier global weather apps.
Rank progression
2 active rankings tracked — 30-day window
Which niche is 雨降りアラート: お天気ナビゲータ in?
Explore the full Weather Monitors niche
Every app in this space — 38 tracked, the niche's live rankings, and Marlvel's editorial take on the job-to-be-done.
The rivals identified
Nemeses(1)
Dominates the niche with over 2.4 million reviews and a high-frequency release cadence that keeps the product at the forefront of weather tracking.
Differentiators
- Maintains a massive, global weather data infrastructure that supports hyper-local forecasting at scale.
- Integrates comprehensive weather news and editorial content alongside standard radar and forecast data.
- High-frequency release cycle ensures rapid adaptation to new iOS platform capabilities and UI standards.
Head to head
The target app must double down on its 'notification-first' utility to defend against the feature-bloat of the nemesis, or risk being replaced by a more comprehensive solution.
Contenders(3)
Leverages the massive brand authority and data network of The Weather Channel to provide professional-grade storm tracking.
Differentiators
- Utilizes proprietary storm-tracking algorithms that provide more granular detail on severe weather events.
- Integrates deep-link alerts that connect directly to professional meteorological analysis and safety warnings.
Aggressive release velocity and a focus on global radar coverage make it a primary threat for rain-specific tracking.
Differentiators
- Provides a seamless, multi-source radar integration that covers a wider geographic footprint than local-only apps.
- Features advanced rain intensity forecasting that allows users to visualize the exact duration of precipitation.
A high-performance radar-centric app that competes directly on the speed and visual clarity of precipitation tracking.
Differentiators
- Prioritizes high-definition, low-latency radar animations that outperform standard map-based weather visualizations.
- Includes specialized aviation-grade data layers that appeal to power users and weather enthusiasts.
Same space(2)
The gold standard for professional-grade, data-heavy weather visualization, serving a distinct prosumer audience.
Differentiators
- Offers highly customizable data layers including wind, waves, and pressure for specialized outdoor activities.
- Provides professional-grade meteorological models that allow users to compare different forecast sources.
A legacy peer that maintains high engagement through a visually iconic, photo-centric UI design.
Differentiators
- Uses high-quality, location-specific photography to create a more immersive and emotional weather-checking experience.
- Maintains a clean, minimalist interface that prioritizes aesthetic appeal over raw data density.
New entrants(2)
Rapidly capturing the niche market for water-sports enthusiasts with specialized tide and wind forecasting tools.
Differentiators
- Focuses exclusively on the needs of sailors, surfers, and kiters with specialized tide and swell data.
- Builds community-driven features where users can share local conditions and spot reports in real-time.
Disrupts the category with a unique, personality-driven interface that has built a cult-like following.
Differentiators
- Uses a sarcastic, customizable AI personality to deliver weather reports, increasing user retention through entertainment.
- Implements a highly gamified achievement system that encourages daily interaction with the weather data.
Compare 雨降りアラート: お天気ナビゲータ against every rival
All rivals in one side-by-side table — identity, store metrics, ratings & sentiment, and strategic intel — plus a head-to-head page for each.
The outtake for 雨降りアラート: お天気ナビゲータ
Strengths to defend, gaps to attack
Core Strengths
- Notification-first architecture reduces user friction
- Apple Watch integration provides glanceable utility
Critical Frictions
- Last update occurred in 2020
- Zero rating count on iOS
Growth Levers
- Expansion into disaster-prevention partnerships
- UI modernization for younger demographics
Market Threats
- High-frequency release cadences from rivals
- Global weather apps offering broader data
What are the next best moves?
Audit the current codebase to determine technical debt because the last update was in 2020 → restore development velocity.
The lack of updates since 2020 prevents the app from utilizing modern iOS platform capabilities.
Trade-off: Pause all new feature development until the codebase is verified for modern OS compatibility.
A counter-intuitive read
The app's lack of updates is a greater threat than feature-bloat from rivals, as it signals to users that the service is no longer reliable for disaster prevention.
Feature Gaps vs Competitors
- Global weather news and editorial content (available in Weather & Radar)
- High-definition, low-latency radar animations (available in MyRadar)
- Advanced rain intensity forecasting (available in RainViewer)
Key Takeaways
The app maintains a strong niche utility through its notification-first design, but the 2020 update freeze leaves it exposed to feature-rich rivals, so the PM must prioritize a technical audit to determine if the product can be revived.
Where Is It Heading?
Mixed Signals
The weather app market is consolidating around high-frequency update cadences and global data integration, leaving single-purpose, stagnant apps vulnerable. The PM must decide whether to invest in a technical refresh or accept the current decline as the product reaches the end of its lifecycle.
The lack of updates since 2020 prevents the app from adopting modern iOS features, which erodes user trust in its disaster-prevention reliability.
The app maintains a #52 rank in the Hong Kong category, suggesting that the core utility still holds value for a segment of users.