i want a app like point app
You need to explain more if you want some advice about security.
- What app that you want to make?
- Why you want it secure?
- How your user would possibly cheat you? Make a list about vulnerabilities of your system
- Is it an online or offline app?
- How do you save your data locally?
- Do you need to transfer your data to a server?
- What kind of server that you use?