kind of. You should offer something in return of the people who are buying it in advance. Like for example 50% discount or whatever. Then you should deliver som

kind of. You should offer something in return of the people who are buying it in advance. Like for example 50% discount or whatever. Then you should deliver something in less than a couple of months, otherwise it is hard to justify the pre-sell. What I would do is set a landing page like the product is almost finished and collect emails or some personal information to contact the people when the product is done. This helps to validate your product before even start building it. Once you know your MVP (very minimum) will be ready in less than a month you can start doing the pre-sell and take the money. It also depends on the product, it is not the same if your customer are the gyms or the people who go to the gym. You can make some gyms sing a contract to use your product for a good offer before you have your product done and without getting any money yet. But once you deliver they have to pay you by contract.