What spreadsheets get right
Let's be fair to Excel and Google Sheets: they are flexible, free, and yours. You control every formula, every column, every chart. If you've been maintaining a net worth spreadsheet for years, you've already built the most important thing — the habit. A dedicated app has to beat the spreadsheet on the things spreadsheets are genuinely bad at, not on flexibility.
Where the spreadsheet starts to hurt
- Updating from your phone is miserable. Pinch-zooming into cell C47 on a phone screen is where most spreadsheet habits die. A purpose-built manual tracker gives you one field per account and a save button.
- No reminders. The spreadsheet never taps you on the shoulder. Monthly check-in reminders and streaks keep the habit alive through busy months.
- Charts are manual labor. Evolution, allocation, drawdown, contributions vs. market returns, year-over-year comparisons — each is another hour of formula maintenance. In an app they're already built and always current.
- One typo can silently corrupt years of data. A stray edit in a formula cell and your net worth history quietly drifts. Structured input with validation can't break that way.
- Privacy depends on where the file lives. A Google Sheet lives on Google's servers, tied to your account. An offline-first app keeps the data on your device, behind Face ID.
- No context, only numbers. A spreadsheet records what happened, not why. An investment journal records the decision behind the number — the part your future self actually needs.
Side by side
Spreadsheet
Infinitely flexible and free, but phone-hostile, reminder-less, fragile to typos, and chart maintenance is on you. Privacy depends on the cloud account it lives in.
Portfolio Journal
Five-minute monthly updates from your phone, built-in reminders and streaks, automatic charts and analytics, Face ID protection, and CSV/JSON export so you're never locked in.
You don't have to abandon the spreadsheet
The pragmatic answer for many people is both: the app for capturing values, the habit, and the charts; a periodic CSV export back to your spreadsheet for anything custom. Portfolio Journal treats your data as yours — import your existing spreadsheet history via CSV in minutes, and export everything back out at any time. No lock-in, by design.
Migrating your spreadsheet in three steps
- Export your history as CSV (one row per account per month works best).
- In Portfolio Journal, choose Settings → Import and map your columns — the flexible CSV mapper adapts to your layout.
- Keep your monthly rhythm: same numbers, one minute per account, charts for free.