1: Password security tool - Tons of them, and really good ones (free)
2: Novel domain registrar - What do you mean by Novel ?
3: Stock recommendation tool - Stocks are basically gambling, nah? www.forbes.com/sites/rickferr…
4: Slack team building app - More info ?
Pick a problem that you think is 1) a real problem people are willing to spend money on to solve, 2) you believe you can create a better solution for than what's out there today, and 3) make sure it's something where you can actually reach your target customer.
Don't look for ideas, find problems.
1: Password security tool - Tons of them, and really good ones (free)
2: Novel domain registrar - What do you mean by Novel ?
3: Stock recommendation tool - Stocks are basically gambling, nah? www.forbes.com/sites/rickferr…
4: Slack team building app - More info ?
100% agree with Florian. Focus on solving a need.
Pick a problem that you think is 1) a real problem people are willing to spend money on to solve, 2) you believe you can create a better solution for than what's out there today, and 3) make sure it's something where you can actually reach your target customer.