Comparison

Amemil vs 海天気.jp

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

Head to head
About

Amemil

This app uses augmented reality and artificial intelligence to provide real-time, high-accuracy rain forecasts. Visualize approaching rain clouds as realistic images through your camera and receive voice notifications for expected rainfall.

Highlights
  • Augmented Reality (AR) rain visualization
  • AI-powered rain cloud detection
  • Real-time rainfall data (250m mesh, updated every 5 mins)
  • Push notifications with voice alerts
  • Multiple display modes (2D map, 3D AR, Satellite Eye)
  • Widget and Siri shortcut support
  • Apple Watch integration
Features
Read full description

Amemil is an application that uses augmented reality (AR) and artificial intelligence (AI) to represent real-time rainfall information. The AI tells you when strong rain clouds are approaching, and you can check them as realistic images through the camera. * Main functions and features - Amemil has three modes: "2D" for map display, "3D" for AR display, and "Satellite Eye" for a bird's eye view of the weather from above. - Rainfall information is a composite of JMA radar data, with a resolution of 250m mesh, and is updated every 5 minutes. - Rainfall notification is a push notification with voice (Saori Onishi and Ari Ozawa) and radar video when rainfall is expected at registered points or at the current location within one hour. - In 2D mode, rainfall and lightning information is displayed in 10 shades, superimposed on the current location marker and map. - The AI learns from meteorologists' explanations and provides information on temperature and rainfall conditions in the user's vicinity, as well as forecasts for the future. - In 3D mode, rainfall information for a 10km radius is combined with the camera image as an animation of rain clouds, rain, and ripples in puddles. You can read the amount of rainfall by indicating the target direction. It can also play the sound of rain according to the intensity of the rain. - The "Satellite Eye" function allows you to view rainfall conditions across Japan, and by moving your iPhone, you can experience a realistic image as if you were looking at it from a satellite. - There is a demo mode that recreates heavy rainfall that has led to disasters in the past. - If you register as a member for 0.99 US dollars per month, you can use the rainfall forecast for the next 15 hours and GPS tracking mode. - You can post a video and image of the screen you are viewing with AR to SNS. If you post it, you can use the paid rainfall forecast and GPS tracking mode for 3 hours for free. * Support for widgets You can check the umbrella index, the rain forecast graph for the next 15 hours, and the weather radar map of the surrounding area on the home screen at any time. * Support for Siri shortcuts - Ask Siri, "What's the rain coming? and Amemil's AI will reply with the weather conditions in the area. * Support for Apple Watch - Rain radar is displayed on the map and a digital crown can be turned to see the forecast up to 60 minutes ahead. - Notifies you of approaching rain with animation. - Precipitation probability, satellite image, and precipitation forecast can be added to the watch face. * About Monthly Membership Price and duration of the monthly membership 0.99 US dollars / 1 month (counted from the date of application) / automatic monthly renewal You will be charged to your iTunes account. * Details of automatic renewal Your subscription will be automatically renewed unless you cancel the auto-renewal more than 24 hours before the end of your subscription period. You will be billed within 24 hours before your subscription expires. * How to check your membership status and cancel your subscription You can check your membership status and cancel your subscription from the following page. [ Settings app > Apple ID > Subscriptions ]. You can check the timing of the next auto-renewal and cancel/set the auto-renewal in this page. You can also check the timing of the next auto-renewal and cancel/set auto-renewal from iTunes. * Cancellation for the current month We do not accept cancellations for the current month for monthly memberships. [ Notes ] - If you want to use GPS tracking mode, please set location access as "Always allow" and "Turn on App background update". - The 3D mode is not available on iPod touch without a camera or a compass. Terms of Use and Privacy Policy http://www.amemil.jp/app/terms.htm Provided by Shimadzu Business Systems Corporation (JMA Forecasting Service License No. 65)

About

海天気.jp

Get detailed, hourly weather forecasts for over 8,000 marine spots, including wind, temperature, and wave height. Visualize precipitation with clear icons and access 14-day outlooks for planning. Also provides city-level forecasts and rain cloud movement.

Highlights
  • Hourly forecasts for 8,000+ marine spots
  • Up to 84-hour pinpoint weather predictions
  • 14-day weather outlooks
  • Rain cloud and lightning movement visualization
  • Tide graphs and sea temperature maps
  • City-level weather forecasts
  • Favorite spot bookmarking
Read full description

全国8,000箇所以上のマリンスポットの、最大84時間先までのピンポイント天気、風、気温、波の高さの予報を1時間ごとの時系列で表示します。降水量は1mm未満までわかりやすい傘マークとともに表現しているので、どのくらいの雨が降りそうかがビジュアルで一目瞭然! ■海スポットならではの情報が満載 沖合いの波高推移や潮汐データ(タイドグラフ)、海水温分布図、潮流のアニメーションなど、マリンアクティビティにマストな情報を網羅。 ■14日間天気予報 14日(2週間)先までの天気予報を、3時間毎の時系列で提供。マリンレジャー計画に役立つ天気の流れの把握に! ■マリンスポット周辺の雨雲/雷の動き 雨雲の動きを過去、未来(6時間先)まで動画にてビジュアル再生。空の雲行きが怪しくなってきたら、すかさず雨雲/雷の動きをチェックしてください。 ----さらに便利な機能も!---- ■市町村ピンポイント天気予報 マリンスポットだけでなく、全国の市町村(市町村役場)単位での天気予報も、1時間毎の時系列で提供。 ~マリンレジャーシーン以外でも、買い物や通勤・通学などの日常生活でもご活用下さい~ ■マリンスポット、市町村の閲覧履歴 「閲覧履歴」から、最近閲覧したマリンスポットや市町村の履歴を一覧表示。よく見るページによりアクセスし易くなります。 ■お気に入りのマリンスポットをブックマーク「マイポイント」 あなたが良く行く複数のマリンスポットを一覧表示! スピーディーに自分の行くマリンスポットの天気チェックを可能にする機能が「マイポイント」です。 ■現在地からルート検索 現在位置情報をアプリと連携し、地図アプリでの釣りスポットまでのルート検索可能。

Screenshots

Amemil4 screens
海天気.jp3 screens

Verdict

The call

The clearest difference is review sentiment: 海天気.jp at 85% against Amemil's 43%. 海天気.jp also leads on in-app purchases (none vs 1) and iOS requirement (15.6 vs 26.6). Amemil's advantage is update cadence (every 3 weeks vs every 4 months). On price, ads and device support 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. Amemil sells 1 in-app purchase, starting at $0.99 per month. 海天気.jp asks for nothing beyond the download.

UpkeepUpdate frequency

Amemil ships an update every 3 weeks, 海天気.jp every 4 months. The most recent releases landed on October 8, 2026 and October 15, 2026 respectively.

Scorecard5 real differences · 5 level
Amemil versus 海天気.jp: the parameters behind the verdict, then further details
ParameterAmemil海天気.jp
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews42.9% of reviews85.0% of reviews — better
Number of ratings1 — better—
Update frequencyEvery 3 weeks — betterEvery 4 months
AdsYesYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesAd-supported — better
DevicesiPhone, iPad, Apple Watch, Vision Pro — betteriPhone, iPad, iPod
Requires iOS26.615.6 — better
Further details — not scored
Size115 MB37 MB
Age rating4+4+
DeveloperShimadzu Business Systems CorporationRisesystem, inc.

Customer experience

Amemil

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews21 reviews
Positive42.9%
Neutral23.8%
Negative33.3%

海天気.jp

Written reviews20 reviews
Positive85.0%
Neutral0.0%
Negative15.0%

In-app purchases

1 purchases

Amemil

Subscriptions1
  • アメミル月額会員14 Days trial$0.991 Month
None

海天気.jp

No in-app purchases

Questions

Is Amemil free?
Amemil is free to download, with in-app purchases available.
Is 海天気.jp free?
海天気.jp is free to download, with no in-app purchases.
Do Amemil or 海天気.jp have ads?
Both Amemil and 海天気.jp show ads.
Which is updated more often, Amemil or 海天気.jp?
Amemil ships an update every 3 weeks, and 海天気.jp every 4 months. Most recently, Amemil was updated on October 8, 2026 and 海天気.jp on October 15, 2026.

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