Name: Tide and Heart Graph
Rating: 3.7 (10 reviews)
Author: GDCSoft

This is a paid product. Check out payment options here: https://www.gdcsoft.com/k/G/TideHeartGraphD
It will work fully for one hour to allow you to make a decision. After that, a code will display on your screen and a notification will appear on your phone asking you to visit https://kzl.io/ to make a one-time payment of USD 2.00 to continue using this watch face. Unlock requires a one-time Internet connection. Please synch with your phone if you see a "waiting for server" message. 
• Found a problem? Please contact me!
• Have a suggestion? Want to see a different graph or use a different API? Please contact me!
• Love the app? Please give me some stars! ⭐⭐⭐⭐⭐

This is a straightforward digital watch that includes the following features:
• Large, clear, digital time display
• Optional seconds display for time
• Current date display
• Battery indicator configurable in settings to display only when battery below a specified charge level
• Full configuration of all colours
• Day mode and night mode display that changes with your configured sleep / wake times
• Support for Venu "Always on display" and option for "digital" or "analog" display when in "Always on display" mode
• Heart rate graph for two hour period (let me know if you would prefer this to be configurable)
• Local tides information (you need to enter the location you want to monitor in settings)
• Optional display of Kiezel developer API information (see note on API keys below)
• Choice of display for top field

NOTE ON HEART GRAPH
Some older watches may not support heart graph. Please verify your watch for this feature before purchase.

NOTE ON TIDES INFORMATION
To obtain valid tides information, the tides service needs to know the GPS coordinates for the area you wish to check. 
Although I have included functionality to automatically detect the GPS coordinates from your last activity, BY FAR THE BEST method to set your coordinates is to use the form at https://www.worldtides.info to find the coordinates of the tides you are interested in. World Tides needs to map your coordinates to a known location, so please check the "Actual location" coordinates that are displayed in this form and verify that they make sense for you.
NB: Latitude is degrees North, longitude is degrees East.

@ IMPORTANT @
Updates via background services take some time! It could take up to fifteen minutes from entering your location coordinates and changing to "World tides" graph for the graph information to display. If you do not see a graph after this time, please check world tides status in settings in case of any error information. Once setup, the tides will attempt to update once a day after midnight to keep your graphs current.

@ ALSO IMPORTANT @
Tidal data retrieved from www.worldtides.info. Copyright © 2014-2020 Brainware LLC.
Licensed for use of individual spatial coordinates by an end-user.
NO GUARANTEES ARE MADE ABOUT THE CORRECTNESS OF THIS TIDAL DATA.
You may not use this data if anyone or anything could come to harm as a result of using it (e.g. for navigational purposes).
Tidal data is obtained from various sources and is covered in part or whole by various copyrights. For details see: http://www.worldtides.info/copyright

NOTE ON KIEZEL API
If you enter your Kiezel API key in settings, watch will display total active trials and total purchases for your developer account with Kiezel. Please note, that you should only enter your API key in software that you have either written yourself or that you know that you can trust. This watch face will only send the key to Kiezel's developer API service, but if you have any doubts or concerns, please remove your key and reset it in your API management page.