Hi, your English is perfect, don't worry ;-)
Life Span: a MZ3-BOOK license has no limits in time; it is a one-time cost and then the license can be used forever. You can modify you Online titles as often you want.
Number of pages: The MZ3-BOOK has no page limits. You can add as many pages as needed. We have customers that use catalogues with more than 2.000 pages
Number of licenses: Each license is assigned to exactly one title. The discount model will in all cases (so far ;-) worked perfectly fine; even when at the beginning an unlimited license was considered.
Advantages for you with the "heavy discount" model compared to "one-time fee for an unlimited number of titles: no upfront invest, high flexiibility (pay for what you know is realistic).
Best will be you make a rough estimate of your realistic needs for the next 6...12 months. And then purchase the appropriate package of licenses.
Example: If you expect to build more than 400 titles, then a 500 license package will be the best fit. The per license price will go down to 15% of the single license price, i.e. 7.50 Euro instead of 50 Euro.
For real big needs like 10,000 books, the price only is 5% of a single license, i.e. 2.50 Euro instead of 50 Euro.
If your plans are seriously in that range or above: then we should talk about a special model that could be "unlimited number", but within certain boundaries like selected region or similar.
You can send me a PM or
email to discuss details.