Hello Herick,
We are IT-Engineers with higher educations, having more than 14 years of experience, developing sophisticated Web and Mobile solutions from scratch.
When providing estimations based on an example of a similar product, there is always some risk of various interpretations, because the buyer and the developer see the same features from different points of view.
This is why we would like you to provide an exact list of functionality you need to have in your project, even if you have an example that is very close to what you are planning to achieve.
If any additional descriptions of the planned result are already available – this would greatly complete the picture of the whole concept and would allow providing an exact estimation.
Life-time Bug-free warranty is a part of our standard service.
We would be glad to answer your questions and provide required assistance.
Best Regards,
Andrei
Dev Experts