Tide and Weather - SurfTideΔ

LiveJJworkshop5 apps · 82.9K installsWeatherFree · contains adscom.jjworkshop.android.surftidedelta

Get tide & weather of Japan.

Alert me★ WatchOpen in Play ↗
Total installs
17,608
exact · Play shows 10,000+
Installs / day
+8
7-day avg · last day +8
Rating
—★
— ratings · — reviews
Released
21 Nov 2018
7.9y ago
Last update
16 Jul 2025
v1.3.6 · 1.2y ago
Countries
—
not checked yet

Installs per day

gain of the exact counter
0510152012 Oct13 Oct

Lifetime avg ≈ 6/day (all installs ÷ days since release)

Daily tracking since 11 Oct 2026 · history grows every day

Install history

exact counter from Google Play
17,59017,59517,60017,60517,61011 Oct12 Oct13 Oct
05K10K15K20K21 Nov 201811 Oct 202613 Oct 2026

Dashed: estimate from the release date (no daily data before 11 Oct 2026) · time axis compressed before that day

Daily tracking since 11 Oct 2026 · history grows every day

Change timeline

Full history

No changes recorded yet. We compare every crawl with the previous one and list title, icon, screenshots, description, version, price and availability changes here.

Country availability

Availability has not been checked for this app yet. “Check all countries” looks the app up in about 140 Google Play storefronts and shows where it is live, listed but not installable, or missing — plus any country-specific (custom) store listings.

Top countries

Country data will be available soon.

We estimate where downloads come from using the app’s position in Google Play’s top charts in about 140 countries. This app is not in any chart we have collected yet; the estimate appears as soon as it is.

Top chart positions

Not in any tracked top chart.

App manifest

Read this app's manifest from Google Play: permissions, declared SDKs, components and AdMob app ID. Saved analysis appears here automatically.

Manifest analysis reads only the required APK ranges. Base APK downloads may need separate device splits to install.

Data safety

declared by the developer on Google Play
  • Shares data with third parties Location and Device or other IDs
  • Collects data Location
  • Data is encrypted in transit
  • No way to ask for data deletion

This is the developer's own declaration, summarised from the Play listing. The permissions below show what the app is technically able to access.

Permissions

12 in 5 groups
6 Sensitive2 Notable4 Routine

What this app can do with your phone

  • Know roughly where you are, using mobile towers and Wi-Fi networks
  • Know your exact location using GPS, Wi-Fi and mobile networks
  • Read photos, videos, and other files saved in your phone's shared storage
  • Add, change or delete photos, videos and other files in your phone's storage
LocationSensitive2

Access to where your device is, using GPS or network signals

  • Know roughly where you are, using mobile towers and Wi-Fi networksapproximate location (network-based) · ACCESS_COARSE_LOCATION
  • Know your exact location using GPS, Wi-Fi and mobile networksprecise location (GPS and network-based) · ACCESS_FINE_LOCATION
Photos/Media/FilesSensitive2

Access to photos, videos, music and other files stored on your device

  • Read photos, videos, and other files saved in your phone's shared storageread the contents of your USB storage · READ_EXTERNAL_STORAGE
  • Add, change or delete photos, videos and other files in your phone's storagemodify or delete the contents of your USB storage · WRITE_EXTERNAL_STORAGE
StorageSensitive2

Access to files, photos and media saved on your phone's storage

  • Read photos, videos, and other files saved in your phone's shared storageread the contents of your USB storage · READ_EXTERNAL_STORAGE
  • Add, change or delete photos, videos and other files in your phone's storagemodify or delete the contents of your USB storage · WRITE_EXTERNAL_STORAGE
Wi-Fi connection informationRoutine1

Access to details about Wi-Fi networks your device sees or uses

  • See whether Wi-Fi is on and details of the network you are connected toview Wi-Fi connections · ACCESS_WIFI_STATE
OtherNotable5

Access to miscellaneous device features that don't fit other categories

  • Start itself automatically as soon as your phone finishes turning onrun at startup · RECEIVE_BOOT_COMPLETED
  • Keep your phone's processor or screen from going to sleep, which can use more batteryprevent device from sleeping · WAKE_LOCK
  • Check whether you are online and whether you use Wi-Fi or mobile dataview network connections · ACCESS_NETWORK_STATE
  • Connect to the internet to load content and send datafull network access · INTERNET
  • Receive push messages sent from the app's servers over the internetreceive data from Internet · com.google.android.c2dm.permission.RECEIVE

Sensitive = can reach personal data, location, camera/mic or act on your behalf. Notable = changes how your device behaves. Routine = normal for almost every app. Source: Google Play's permission list for all versions of this app.

Store listing

Full description
A new version has already been released. Here: SurfTideX ------------- SurfTideΔ can be able to make the tide graph for surfers, fishermen and other people who enjoy marine sports. It show the weather forecast and the waves information as well. (Tide's places are only Japanese) ------------- ▶You can check around 340 places of the tide in Japan. Tide graph is calculated with the "Tidal anharmonic constant" inside app. so you don't have to down load any data of the tide. ▶You can check quickly current tide. The app show a flashing mark on the tide graph current time. so you can check easily the tide moving. Also you can check a sunrise and a sunset from graph. That's very useful for such as surfers, fishermen and and other people who enjoy marine sports. ▶It's convenient for fishing too. The app can be able to show a good time for fishing. They are between high tide and low tide on a few hours. In Japan, it's called "上げ三分、上げ七分、下げ三分、下げ七分". ▶You can select easily the place you want. You can select from menu, places of you've seen before, easily. Also apps GPS function can able to know a tide's place nearby here, and show the tide graph and the weather forecast. ▶You can check the weather forecast every an hour for 7 days. You can get the weather forecast data for tide's place every an hour for 7 days. The data has important waves information for surfers such as the wind direction, the wind speed, the waves direction, the waves height and the waves cycle. The weather data is showed together the tide graph and numeric datas. so you can predict a future's condition of waves and tides. The weather data is provided by the online service of "WorldWeatherOnline". Very occasionally, maybe once or twice a year, there are times when data is not sent but usually a few hour after, it woudl be fixed. In this case, you should wait one in a while. ▶You can check the weather map. You can check weather map charts maximum 26. The charts includes yesterday's chart fo every 3 hours, today's chart fo every 3 hours, forecast after 24 and 48 hours and future forecast for 10 days. ▶You can check daily news of surfing and fishing. When there are new news, it's noticed by the icon marker on the app. You can read news such as surfing, fishing, this app's information and other. The news is provided by Google news feed. ▶ Works with widget "SurfTideDeltaWidget" You can launch from the widget version of this app and show the target place. About "SurfTideDeltaWidget" see below. ↓ https://jjworkshop.com/app/manual/stda_widget_en.html ▼Displayable data from app - Tide Graph - A good time for fishing - Time of low tide and high tide - Age of moon - Tidal anharmonic constant - Sunrise,Sunset and more infomation - Moonrise,Moonset and more infomation - Weather forecast information every hour  - Weather icon mark (42 kinds)  - Atmospheric air pressure (hPa)  - Waves direction (by icons)  - Waves height (centimeter)  - Waves cycle (c/m)  - Wind direction (16 direction)  - Wind speed (m/s)  - Temperature (celsius)  - Humidity (percent)  - Seawater temperature (celsius)  - Precipitation (millimetres)  - Visibility (0 to 10, 10 is all clear) - Weather map chart (past, live and forecast) - News of surfing, fishing and more ▼Additional notes Some information are shown Japanese Kanji, because that is a place name and unique to Japan. Especially, name of the tide is unique. It is explained below. 'Shio(潮)' mean tide. 大潮 (Ōo-shio) It's a day when a lot of tide difference high and low. It's around the full moon and the new moon. 中潮 (Naka-shio) It's between 大潮 and 小潮. 小潮 (Ko-shio) It's a day when few of tide difference high and low. 長潮 (Naga-shio) It's a day after 小潮. 若潮 (Waka-shio) It's a day that tide starts to move again. It come after 長潮. The places name is difficult to chang to Roman letters. So In the app it shown in Japanese Kanji as it was.

What's new

v1.3.6 Various libraries have been updated. Now compatible with Android 16.

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