@Frederic:
1. I think making the documentation available that explains in detail what each class or library is capable of doing to prospective buyers will help your sales. People are not going to buy something when they do not have a full grasp of what it does.
Good idea. I added a PDF listing the contents in detail and an excerpt of the documentation listing the methods & properties of the main classes and libraries.
2. When you produce upgrades, are they available to buyers and for how long.
Upgrades are unlimited and free for buyers. I'm very reactive to fix bugs (if any).
3. Always remember: People that use your product are essentially helping you improve it by debugging and recommending enhancements, as was the case when your classes and libs are free. So, be easy on the prices. Any high library or class prices will have a negative impact on Erel's B4A sales when buyers start factoring the overall cost.
Merci d'avance
I won't change my price because this price looks to me like a fair reward for my work. How many views like this exist in the world ? To my knowledge: none. Even in the Java world, it doesn't exist something like this (or it is well hidden, or not publicly available). It's an unique work. I spent full weeks on this. The result is not an easy thing that everyone can do, especially when it comes to imbricate many algorithms. I can make an offer to any buyer: if you can improve the ULV significantly, I refund you (and I'll do it with pleasure because it will mean that the product has been improved).
In comparison, I consider that most of my free classes are something that an advanced user or a professional developer can easily replicate.
These last weeks, I made two interesting experiences:
- adding a donate button (very poor results; a lot of people download my stuff and forget to donate despite the minimal donation asked for);
- selling my work directly to customers (very good results; that does not encourage to create free stuff; I could really earn a living this way but this is not what I'm looking for).
I don't believe that a very low price will help the sales. This price, to my opinion, is already a very low price, almost a gift. I would have charged this product to a single customer probably two or three thousand euros.
And don't worry, I will continue to release free classes or libraries (as donationwares probably).