<p>I have recorded my expenditure and income by my own computer program since 2005. iPhone was launched in 2007. However, I bought my first iPhone in 2014. (I know it is too late.) I downloaded a free app to keep an account of my spending. Yes! I really felt that using mobile app was more convenient than using desktop computer program.</p><p>After a year, I found that the app could not satisfy me. It always popped up a full screen advertisement. Its font size was too small to read. Moreover, its database expanded rapidly with few photo attachments. It requested me to register and upload my database to cloud service! But its cloud service always was very slow!</p><p>In September 2015, I decided to develop my own app to replace the existing one. I finished the app with basic functions after 4 months.</p>

I want to earn some money. I want to develop some apps most of you love. Certainly I must be the first user of these apps. It is just the beginning. I love programming. I am hoping for a career in the mobile app industry.

Bookkeeping is essential in business but it is optional for individual. Spending time to record your expenditure seems to be wasteful. If you are rich, I do not think you need to do so. If you want to be rich, you must do it! The habit of recording your spending can make you consider every expenditures whether it is worth to spend. As a result, you save money.

There are thousands similar apps in the world. I do not expect my app will be successful. I will develop different types of apps to increase the probability of success. One chance is enough.