《November 2025》Monthly Report: Side Income & Investment Results【App Development × Asset Management】
This is a monthly report summarizing my side income (app development) and investment performance (Rakuten Securities and Defined Contribution Pension).
This article covers:
- Revenue highlights for this month
- Detailed side income breakdown
- Investment results (Rakuten Securities & Defined Contribution Pension)
- Total assets trend
- Monthly reflections (strengths / challenges)
- Action plan for next month
Starting this month, I'll be publishing these monthly reports to track my annual asset growth.
💡 About This Report
This report documents one example of how assets grow when earning side income (app development) while simultaneously investing.
- This is NOT a method to increase assets through investment alone
- No guarantee of reproducibility
- Please use this as a reference example of "side income × investment"
I aim for long-term asset building by investing a portion of my side income.
📊 Monthly Highlights
- Total assets reached ¥24 million
- Side income from app development: ¥600k
- Both Rakuten Securities and Defined Contribution Pension showed positive growth
💼 Total Assets Trend
Current total assets: ¥24 million
Change from last month: +¥750k
Assets are steadily increasing through both side income and investment returns.
💰 Side Income Details
This month's side income: ¥600k
Change from last month: -¥60k / -9.1%
Despite a decrease from last month, I achieved my minimum target of ¥600k.
📈 Stock Investment Results
Current valuation: Approx. ¥15.61 million
Change from last month: +¥610k / +4.1%
This is the combined valuation of Rakuten Securities and Defined Contribution Pension investments. Assets are growing steadily in favorable market conditions.
🔍 Monthly Reflections
✔ Strengths
- Achieved minimum target of ¥600k in side income
- Investments progressing well with asset growth
- Stock investments: +4.1%
- Started blog and X for information sharing (unrelated to revenue)
- Beginning a new challenge
✔ Challenges
- Ad revenue decreased from last month
- Need to review user acquisition strategies
- Strengthen new user acquisition for apps
- Verify marketing methods
- Consider new app releases
- Explore new revenue sources
🎯 Next Month's Action Items
- Strengthen app marketing
- Test various advertising methods
- Verify user acquisition costs
- Organize blog categories and enrich content
- Continue regular information sharing
- Implement SEO measures
🔗 Related Pages
Check out the 2025 assets tracking page
I hope this article serves as a reference for those working on side income and investments.
I'll continue publishing monthly reports!