Comparison

タイドスコープ vs Tide & Sky

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

Head to head
About

タイドスコープ

This app provides easy-to-understand tide forecasts based on real-time data from 238 observation stations nationwide. It displays current tide levels, high and low tide times, and tide cycles, along with weather and wave information.

Highlights
  • Real-time tide level display
  • High/low tide times and heights
  • Tide cycle display
  • Tide level graphs with weather
  • Weather, wave, and wind data
  • GPS for nearest station
  • Widget and Apple Watch support
Features
Read full description

気象庁の全国238観測局のリアルタイム潮位データをもとに、現在の潮位・満潮・干潮をわかりやすく表示する潮位予報アプリです。 【主な機能】 • 全国238観測地点に対応(気象庁全観測局) • 現在の潮位をリアルタイム表示 • 満潮・干潮時刻と潮位高さを一覧表示 • 潮回り表示(大潮・中潮・小潮・長潮・若潮) • 潮位グラフ(天気・気温・風速付き) • 天気・波高・風速・気圧のリアルタイム表示 • GPSで最寄り観測地点を自動選択 • 地図から観測地点を選択 • お気に入り地点の登録・切り替え • カスタム地点の作成(任意の場所に最寄りの観測データを紐付け) • ライト/ダークモード対応 【ウィジェット対応】 ホーム画面に潮位ウィジェットを配置して、アプリを開かずに現在の潮位・次の干満時刻を確認できます。小・中・大の3サイズに対応。 【Apple Watch 対応】 手首で素早く潮位を確認。コンプリケーションにも対応し、文字盤から直接潮位をチェックできます。 【データについて】 潮位データは気象庁の潮位観測データを使用しています。 天気データは Open-Meteo(オープンソース気象API)を使用しています。

About

Tide & Sky

Features
Read full description

Tide & Sky draws tides, sun, moon, weather and waves on a single timeline. Swipe and time moves: the sky changes colour, the sun and moon travel their arcs, and the water rises and falls. WHAT YOU SEE • The tide curve, with the times and levels of high and low tide • Sunrise, sunset, moonrise, moonset and the lit fraction of the moon • Daylight length and how much it changed since yesterday • Weather from Apple WeatherKit: temperature, rain chance, wind and pressure • Weather, wind and waves beside the clock follow the selected timeline time; unavailable forecasts are hidden • Wave height, period and direction for stations in Japan • Stars, clouds and rain over the sky • Ten days forward and back PLACES • Compare saved places at the same moment • 2,522 tide stations: 229 in Japan (Japan Meteorological Agency) and 2,293 worldwide • Save the spots you visit and switch between them with one tap • Find a spot by name, by prefecture, or on the map • Every spot is shown in its own local time EVERYWHERE • Home Screen and Lock Screen widgets • Apple Watch app and complications • Share today's conditions as an image PREMIUM (monthly or yearly) • No ads • Alerts before or after high tide, low tide, sunrise, sunset, moonrise and moonset • A daily summary of tides, sun and moon, with weather, wind and waves when a forecast is available • Choose what the main screen shows, its time span, and a fixed 24-hour view • Choose what widgets show and the hours they cover Everything else is free, including every station, the widgets, the Apple Watch app and share cards. Tide levels are astronomical predictions from the moon and the sun. They do not include changes caused by air pressure or wind, and must not be used for navigation. Always check official sources. Terms of Use (Apple standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

タイドスコープ4 screens
Tide & Sky4 screens

Verdict

The call

The clearest difference is in-app purchases: タイドスコープ at none against Tide & Sky's 2. タイドスコープ also leads on ads (none vs shown). Tide & Sky's advantage is update cadence (every 2 days vs weekly) and iOS requirement (18.0 vs 26.2). On 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

UpkeepUpdate frequency

タイドスコープ ships an update weekly, Tide & Sky every 2 days. The most recent releases landed on October 7, 2026 and October 22, 2026 respectively.

Scorecard4 real differences · 6 level
タイドスコープ versus Tide & Sky: the parameters behind the verdict, then further details
ParameterタイドスコープTide & Sky
Price—Free — better
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyWeeklyEvery 2 days — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, Apple WatchiPhone, iPad, Apple Watch
Requires iOS26.218.0 — better
Further details — not scored
Size11 MB29 MB
Age rating4+4+
DeveloperMasahiko ShiraiAO Inc.

In-app purchases

None

タイドスコープ

No in-app purchases

2 purchases

Tide & Sky

Subscriptions2
  • Tide & Sky Premium Monthly$1.991 Month
  • Tide & Sky Premium Yearly$14.991 Year

Questions

Is タイドスコープ free?
Pricing for タイドスコープ is not currently listed on the App Store.
Is Tide & Sky free?
Tide & Sky is free to download, with in-app purchases available.
Do タイドスコープ or Tide & Sky have ads?
Tide & Sky shows ads; タイドスコープ does not.
Which is updated more often, タイドスコープ or Tide & Sky?
タイドスコープ ships an update weekly, and Tide & Sky every 2 days. Most recently, タイドスコープ was updated on October 7, 2026 and Tide & Sky on October 22, 2026.

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