Stock Average Cost Calculator

Stock Average Cost Calculator is the precise tool retail investors truly need. Compute your true weighted average cost across every stock buy, plan dips with side-by-side what-if scenarios, and see whether averaging down is actually working, from a clean dark interface that respects your privacy.

Stock Average Cost Calculator is a paid app. A one-time purchase or an auto-renewing subscription is required to use the calculator, tracker, what-if simulator, and dashboard.

Most "average cost" tools stop at one computation. Stock Average Cost Calculator remembers every buy you log, simulates the next one before you commit, and quantifies your strategy after every trade. It is a position-tracking layer wrapped around a broker-grade cost-basis calculator.

THE CORE CALCULATOR

- Add unlimited executed buys per position, no arbitrary limit
- Weighted average cost recalculated instantly as you type
- Break-even price and recovery-needed percentage on every keystroke
- Customizable price-target table with projected P&L at +10%, +25%, +50%, +100%, or any percentages you define
- Pick your display currency from USD, EUR, GBP, or kr
- Save the calculation as a tracked position the moment you are done

TRACK EVERY POSITION

Stock Average Cost Calculator is your private, on-device position tracker. Every buy persisted, no spreadsheets, no sync, no manual re-entry. The Positions tab shows open and closed trades at a glance.

- Ticker, total shares, weighted average cost on every row
- "Last buy vs your average" line, color-coded amber when you averaged down and green when you averaged up
- Tap an open position to open Position Detail with chart and tranche history
- Tap a closed position to see realized P&L and the "Did averaging help?" comparison
- Swipe to delete

POSITION DETAIL: THE FULL STORY OF EACH TRADE

For every open position you see:

- Current weighted average cost with an animated count-up on entry
- Total shares and capital deployed
- Tranche history showing the running average after each buy
- A running-average step chart that visualizes how your cost basis has evolved
- Edit the ticker any time without losing your buy history
- Add another buy, run a what-if, or mark closed, all from one screen

PLAN BEFORE YOU BUY: THE WHAT-IF SIMULATOR

Stock Average Cost Calculator includes a What-If Simulator few averaging apps offer. Enter one hypothetical buy price and compare four buy-size scenarios, each editable, showing projected new average cost, capital needed, and distance back to break-even. Save any scenario as a "planned tranche" and it appears in your buy history and as a dashed continuation on the running-average chart.

DID AVERAGING HELP? THE PROOF

After you mark a position closed, Stock Average Cost Calculator runs the comparison few other tools offer: your realized profit, loss, return, and ROI vs what you would have made holding only your first buy. The answer is on the Dashboard and on every Closed Trade Summary, aggregated across all your trades.

YOUR CAPITAL AT A GLANCE: THE DASHBOARD

- Total capital deployed across open positions
- Average distance to break-even across your portfolio
- A pie-chart breakdown of how your capital is split
- Winners vs losers, total realized profit and loss, and the "Did averaging help?" headline

WHO IT IS FOR

- Retail investors who buy the dip and need fast cost-basis math
- DCA (dollar-cost averaging) practitioners tracking every contribution
- Long-term holders managing positions through volatile periods
- Anyone underwater on a position who wants to plan recovery thoughtfully

SUBSCRIPTION & PRICING

Full access requires an in-app purchase: a weekly subscription, a yearly subscription, or a one-time lifetime purchase. Current prices are shown in the app before any purchase. Subscriptions renew automatically at the end of each period unless cancelled at least 24 hours in advance, and can be managed or cancelled at any time in your App Store account settings.