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It is possible to find the location that records that information by using file or registry monitoring software including third party uninstaller software such as Revo Uninstaller but it can be tedious and frustrating work. You might think to yourself, how does the shareware knows how many days left in the trial period? Most of the time these commercial and freeware protectors drop some information somewhere deep inside your computer after installation so they know when it was installed and then comparing with the official current time pulled from the Internet. In the earlier days, you can easily run the expired software by simply backdating the date on your Windows operating system but some software has got smarter to detect this and instantly ends the trial period. The amount of days given to try are normally around 30 days but it could be shorter or longer depending on the author of the software. The first one is the demo version with limited or crippled functionality that doesn’t have an expiry date and another type is the fully functional trial version that expires after a certain period of time.
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My computer has 8GB RAM and good processor and still takes a lot to generate charts and analysis.Normally there are two types of restrictions for shareware. About the software specifically, I would suggest to make it lighter, or develop a light version. Also, dose-response curves deserve more information and details about real life examples as well. However, IC50 calculation tutorials could be improved adding real life examples with common absorbance or fluorescence experiments. GraphPad tutorial is good and very informative. Figures are amazing and you can easily add standard deviation, which is a must to in scientific publications. I've tried other software before and GraphPad is way easier to use and complete.
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It's pretty easy to import data and replicates and perform analysis over these replicates.
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That's an incredible advantage for people who's learning and selecting their "go-to" statistic software. GraphPad allows you to have one month free trial with all the features. It's an amazing software and it allowed me to transition from Excel and Origin and only use GraphPad now. I've also generated my charts, figures and reports directly to publish in peer-reviewed journals because of their quality. I have used GraphPad to calculate IC50, EC50 in fluorescence-based assays for my scientific project. GraphPad is the software you need for statistics
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