Subscribing to software applications on the Internet has become very popular. Here's why renting Senfisto may be right for you. Development costs of a software like Senfisto are so high that the selling price would be way beyond the financial possibilities of small to middle-sized schools. With a small annual subscription fee everyone can afford to run Senfisto. Subscribing to Senfisto means keeping your options open. If you later want to switch to another product, you will not have to sacrifice a hudge investment. Subscribing to Senfisto means keeping your options open. If you later want to switch to another product, you will not have to sacrifice a hudge investment.