AvgNote: Stock Average Calc

Know your new average before you buy more.

AvgNote is a stock average calculator and trade ledger in one. Type your current average price and the shares you plan to add — the new average appears as you type. No calculate button, no ads between every result, and nothing disappears when you close the app.

AVERAGE DOWN CALCULATOR
• Enter your average and quantity, then add as many planned buys as you like
• Enter by shares or by amount ("buy $500 worth")
• See the new average, total shares and extra cash needed
• Reverse mode: set a target average and see exactly how many shares it takes at a given price
• One sentence explains the result: "Buying 50 more shares lowers your average by 2.26 (2.98%)."

TRADE LEDGER THAT REMEMBERS
• Keep a list of your stocks, ETFs or coins — name them however you like
• Log buys and sells with date, price, quantity and fee
• Partial sells handled correctly: your average stays, realized profit is calculated
• Type the current price to see unrealized profit and return %
• Log a planned average down to your ledger in one tap

MORE CALCULATORS
• Return %: buy price vs sell price
• Target price and stop price from a target return
• Break-even sell price after fees and taxes
• Compound growth of monthly investing

BUILT FOR REAL USE
• Up to 8 decimal places for crypto and fractional shares
• Commas are added automatically as you type
• Choose red-up or green-up colors
• Home screen widget with your averages and a shortcut to the calculator
• Light and dark themes

PRIVATE BY DESIGN
No account, no brokerage connection, no live quotes. Your stocks and trades stay on your phone.

AvgNote is a calculation and record-keeping tool, not investment advice.

Recent changes:
First release: average down calculator with target average, trade ledger with partial sells and fees, return / target / break-even / compound calculators, and a home screen widget.