aTides is a completely off-line worldwide tide prediction application using NOAA/XTide harmonic data files.
It is based on code from uTides which in turn is based on xTides. If you are familiar with how xTides works you will be familiar with aTides. aTides however only contains a subset of features from xTides.
Users in Canada should choose the 'Non-Free' region. The Non-Free region also contains some ports for the UK, Germany and Holland that may not be in the Europe region.
If you use this app, please consider contributing to the developer's beer fund, the ad-free version is only a fraction of the cost of a pint of beer!
Please note: some data may be out of date and not all ports are available, please do not ask for more ports unless you can provide the harmonics file.
If you want to see this app survive and don't want to buy the Ad-Free version please visit one of the sponsors ads every time you use it. No clicks = no revenue = a dead app. The Ad-Free version also receives all the latest bug-fixes and features first.