The confidentiality agreement is in many ways the equivalent of a non_disclosure agreement in that it is intended to protect the company from the loss of any confidential information or intellectual property. While the two agreements may be similar in nature, you will find that the major difference between the two are the penalties should an employee breach the contract and divulge any confidential information. The more serious penalties are reserved for a confidentiality agreement and can result in criminal lawsuits and very large fines if not prison sentences.
When you start looking at templates you will find that there are literally dozens of them available, you may need to try several of them out until you find the one that will work best for you and all of the others who are involved in the venture. Your template should include spaces for you to clearly write down the objectives of the venture clearly so that everyone can understand and agree upon them. There should be a place that covers financial contributions and who is responsible for managing them.