App Overview

Sakura Navi - Forecast in 2026 icon

Sakura Navi - Forecast in 2026

日本気象株式会社 · Travel

Sakura Navi is only available in 2026.

$5.99 · In-app purchases

PRICE
$5.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
4.1
13 ratings · Top 30%

Evidence scope: No current overall US chart position is available. Category-chart positions shown in discovery are a separate scope. Revenue is a directional model estimate, not verified earnings.

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What's included19 files

A product spec, phased build plan, differentiation notes, and screen references.

  • START_HERE
  • AGENTS
  • EVIDENCE
  • SPEC
  • BUILD_PLAN
  • DIFFERENTIATION
  • skills/
  • screens/
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Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.

Feature spec

Goal: Send a clear invoice after finishing a job.

  • Add a client, line items, a due date, and payment instructions.
  • Preview the total before exporting a PDF.
  • Keep an editable draft if export fails.

Screen plan

Invoice editor: Client at the top, editable line items in the middle, total and preview action at the bottom.

States: Empty draft, validation errors beside each field, exporting, and a retry action that preserves the draft.

Differentiate and validate

Hypothesis: Contractors need faster repeat invoices more than more templates.

First experiment: Test duplicating a previous job with five contractors. Watch where they hesitate before expanding the feature set.

The full kit adds a phased build plan, evidence notes, tool prompts, and implementation guidance. It is a plan for your coding agent, not a finished app.

Usage: Mechanics are fair game; never reuse the original name, branding, assets, or verbatim copy.

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> SELECT BUILD PLATFORM:

Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.

// RORK SYSTEM PROMPT
Rork plan preview for Sakura Navi - Forecast in 2026: map the core Travel workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
            

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Opportunities

AI-GENERATED OPPORTUNITY HYPOTHESES

These are generated suggestions, not verified review quotations. Check current App Store reviews and speak with users before treating a possible gap as a requirement.

Hypothesis 1

Implement real-time data updates and user feedback for accuracy.

Assumption to check: Users may find the forecast accuracy inconsistent.

Validate with people who use this workflow before building.

Hypothesis 2

Add social sharing options and user-generated content.

Assumption to check: Limited engagement features for users.

Validate with people who use this workflow before building.

Hypothesis 3

Improve map UI with better markers and filtering options.

Assumption to check: Poor map integration may confuse users.

Validate with people who use this workflow before building.

Hypothesis 4

Offer a free trial and clear value propositions for purchases.

Assumption to check: Subscription model can deter users.

Validate with people who use this workflow before building.

App evidence

Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.

App Store description

Sakura Navi is only available in 2026. Japan Meteorological Corporation (JMC) announces forecasts for the flowering and full bloom dates of cherry blossoms (Somei Yoshino) at approximately 1,000 spots across the country, from Hokkaido to Kagoshima, as well as for Kawazuzakura cherry blossom spots in Kawazu Town(*). * Kawazu Town(Kawazu-cho), Kamo District, Shizuoka Prefecture • What is “Sakura Navi?” This is an app where you can find out information on the forecast of the flowering and full bloom dates of the cherry blossoms and their progress towards flowering (Flowering Meter) all over Japan. Moreover, there are functionalities with which you can enjoy more of the cherry blossoms, such as “Proximity Notification for Cherry Blossom SPOT” where there will be a notification when you are close to a Cherry Blossom SPOT as well as “Stamp Card” where you can record your previously visited locations. Want to see cherry blossoms at the best time in Japan? Enjoy your spring trip to Japan even more with Sakura Navi. For more details: https://sakuranavi.n-kishou.co.jp/en/?f=appstore --- New for 2026: Explore Local Festivals & Events! --- Beyond cherry blossom viewing, you can now find information on various festivals and local events across Japan! Discover more of Japan's culture and vibrant celebrations during your trip. • What is “MY SPOT?” This refers to your favorite Cherry Blossom SPOT. You can register up to 30 locations. • Cherry Blossom Flowering Forecast Map The pins on the map indicate the locations of Cherry Blossom SPOT all over Japan. And the colors of the pins indicate the growth percentages of the cherry blossoms. You can call up the route guidance function of your map app from the "Route to this Sakura Spot" button. If you open Sakura Map outside of Japan, the map will automatically be moved to Japan (Tokyo). • Details Screen The forecast of the flowering and full bloom dates of the cherry blossoms and Flowering Meter for each location can be seen here. Each location can be added to MY SPOT by clicking the button “Add to MY SPOT.” Previously Visited Stamp can be put on the location by clicking the button “Visited Stamp.” “Visited Stamp” is available only when you are actually near the location. (*) * This function is not available if permission to access the location service is not activated on your device. • MY SPOT (Cherry Blossom Calendar) This is a calendar for the Hanami (cherry blossom viewing) season (January to May). There will be markers on the forecast dates of flowering and full bloom for your registered MY SPOT. • Stamp Card You can see the locations where you have put the Previously Visited Stamp. • Proximity Notification for a Cherry Blossom SPOT A notification will be sent when you are near a Cherry Blossom SPOT. * This function is not available if permission to access the notification service or location service on your device is not activated. * Notifications will not be sent when the growing status is “Fresh green leaves.” • Settings You can set an range where you would like to receive Proximity Notifications for a Cherry Blossom SPOT. Notes * The forecast of the flowering and full bloom dates is an estimate using our own methodology, and we cannot guarantee a 100% accuracy. * Information of MY SPOT and Stamp Card will be lost when the app is uninstalled.

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Screenshots

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Build scope

Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.

Define the first version

Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.

Set boundaries

Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.

Check the hard parts

Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.

SUGGESTED BUILD STACK
React Native
Expo
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Zustand
BUILD KIT DIFFICULTY
Intermediate

From the Build Kit assessment.

A reliable timeline needs an agreed scope and a technical check. Ask your agent to estimate the phases in BUILD_PLAN.md after that review.