Comparison

天気図 vs JAPOW CAST

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

Head to head
About

天気図

View weather charts for the past 3 days and up to 48 hours into the future. This application utilizes weather maps from the Japan Meteorological Agency to display various regional and high-altitude analyses and forecasts.

Highlights
  • Past 3-day weather charts
  • 48-hour weather forecasts
  • Regional weather maps
  • High-altitude analysis charts
  • Japan Meteorological Agency data
Features
Read full description

【概要】 過去3日間から48時間先までの天気図を表示します。 気象庁の天気図を活用したアプリケーションです。 【主な機能】 ●日本周辺域実況天気図 ●日本周辺域24/48時間予想天気図 ●アジア太平洋域実況天気図 ●アジア太平洋域24/48時間予想天気図 プロ天気図のタブは以下の機能がございます。 ●天気図 ASAS / FSAS24 / FSAS48 / FSAS01 / FSAS07 / FSAS09 / FSAS12 ●高層解析・予想天気図(アジア) AUAS50 / AUAS70 / AUAS85 / FXAS504 / FXAS507 / FXAS784 / FXAS787 ●高層解析・予想天気図(極東) AUFE50 / AXFE78 / FUFE502 / FSFE02 / FUFE503 / FSFE03 / FXFE572 / FXFE782 / FXFE573 / FXFE783 ●高層解析・予想天気図(西太平洋) AUXT85 / AUXT20 / FUXT852 / FUXT854 / FUXT202 / FUXT204 【本アプリケーションについて】 ○ 対応機種 : iOS 14.0〜 今後もご要望にお答えしていきたいと思いますので、 ご要望などあれば、お知らせください!

About

JAPOW CAST

This app provides detailed snow, weather, and resort information for over 400 ski resorts across Japan, all in English. It features a snow radar, resort-specific forecasts, and an AI agent to answer your ski trip questions, plus local amenity information.

Highlights
  • Snowfall and snow depth radar
  • Resort weather and snow forecasts
  • AI-powered ski trip assistant
  • Local amenity finder (ramen, onsen, rentals)
  • Save and compare favorite resorts
  • English language support
Features
Read full description

Heading to Japan for powder? JAPOW CAST is the snow app for your Japan ski trip — snow, weather and resort info for 400+ ski resorts, all in English. From Niseko and Furano in Hokkaido to Hakuba, Nozawa Onsen and Myoko, see at a glance where the snow is and where to ride next. SNOW RADAR See where it's snowing right now. Snowfall and snow depth across Japan on one map, so you can time your day for fresh tracks. RESORT WEATHER & SNOW Weather, temperature and snowfall for every region — Hokkaido, Tohoku, Nagano, Niigata and more — side by side. AI AGENT — ASK IN ENGLISH Not sure where to go? Just ask: • "Which resorts have the most snow right now?" • "Resorts near me?" • "Where's the nearest onsen?" • "How much is a lift ticket?" Answers include links to the pages they're based on. APRÈS-SKI, SORTED Find ramen, cafés, convenience stores, rentals and onsen near any resort — with ratings, opening hours, photos, reviews, and one-tap directions. FIND & SAVE RESORTS Browse resorts on the map or near you, save your favorites, and compare their conditions in one tap. PREMIUM • Unlimited SNOW Radar • More AI Agent questions each month • Unlimited favorites First month free for new subscribers. GREAT FOR • Skiers and snowboarders visiting Japan • Powder hunters who never want to miss a storm • Anyone deciding where to ride this weekend PLEASE NOTE • Weather and snow information is based on forecast and analysis data and may differ from actual conditions on the mountain. • Always ride within your ability and follow resort and local avalanche guidance. Terms of Use (EULA): https://japowcast.com/terms Privacy Policy: https://japowcast.com/privacy

Screenshots

天気図4 screens
JAPOW CAST3 screens

Verdict

The call

The clearest difference is review sentiment: JAPOW CAST at 100% against 天気図's 50%. JAPOW CAST also leads on update cadence (every 2 weeks vs monthly). 天気図's advantage is device support (3 vs 1). On price, ads, in-app purchases and monetization model 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

Both are free to download. 天気図 sells 4 one-off in-app purchases and JAPOW CAST sells 1 in-app purchase, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

天気図 ships an update monthly, JAPOW CAST every 2 weeks. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.

Scorecard3 real differences · 5 level
天気図 versus JAPOW CAST: the parameters behind the verdict, then further details
Parameter天気図JAPOW CAST
PriceFreeFree
Positive reviews50.0% of reviews100.0% of reviews — better
Update frequencyMonthlyEvery 2 weeks — better
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.6 — better16.4
Further details — not scored
Size63 MB115 MB
Age rating4+4+
Developerhidehiko aiharaSEVEN DOT

Customer experience

天気図

Written reviews6 reviews
Positive50.0%
Neutral16.7%
Negative33.3%

JAPOW CAST

Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

4 purchases

天気図

One-time4
  • Coffee (Regular)$0.49
  • アプリケーション開発者への応援募金$1.99
  • Coffee (Large)$1.99
Show 1 more
  • Cake Set$5.99
1 purchases

JAPOW CAST

Subscriptions1
  • Premium Plan$1.991 Month

Questions

Is 天気図 free?
天気図 is free to download, with in-app purchases available.
Is JAPOW CAST free?
JAPOW CAST is free to download, with in-app purchases available.
Do 天気図 or JAPOW CAST have ads?
Both 天気図 and JAPOW CAST show ads.
Which is updated more often, 天気図 or JAPOW CAST?
天気図 ships an update monthly, and JAPOW CAST every 2 weeks. Most recently, 天気図 was updated on November 3, 2026 and JAPOW CAST on November 5, 2026.

Other comparisons