Crypto Profit Tracker vs BIST Cost Assistant

Bought Bitcoin at $28,400 and want to know exactly where you stand today? Type in what you paid and today's price — CryptoBook shows your profit or loss on every coin and across your whole portfolio. No exchange login, no wallet address, no API key. Ever. Every big crypto tracker wants to connect to your accounts and stream live quotes through someone's servers. CryptoBook is the opposite: a private, offline ledger. You enter two numbers per coin — what you paid and what it's worth — and it does the P/L maths. Your holdings never leave your phone. WHAT YOU GET • Open the app to the one number that matters: total portfolio value, with profit or loss in dollars and percent • Per-coin P/L on every row — spot the position quietly dragging your whole portfolio down • Log each buy as its own lot and your true weighted-average cost basis is calculated for you — DCA without the spreadsheet • "Updated 3 days ago" stamped on every price, so you always know how fresh your own numbers are • A donut chart of your allocation — see in one glance that 80% of your money is riding on a single coin • Your entire ledger — every holding, every lot — out as a CSV in one tap, ready for your records or your accountant PERFECT FOR • Long-term holders who check in weekly, not every five minutes • DCA buyers who want their real average price, not a guess • Anyone who refuses to hand an app read-access to their exchange or wallet • Cold-storage owners whose coins never touch an exchange at all WHY NOT JUST USE A LIVE TRACKER? Live portfolio apps need your exchange API keys or wallet addresses, and they see every move you make. CryptoBook asks for none of it. The trade-off is honest: you type prices in yourself, as often as you like. In return there is nothing to hack, nothing to leak, and the app works in airplane mode — or anywhere the exchanges don't. PRIVATE BY DEFAULT Your ledger is stored only on your device. No account, no sign-up, no cloud, no tracking of what you hold. Delete the app and the data is gone — that is how a private ledger should work. FULL ACCESS CryptoBook Pro unlocks unlimited holdings, the allocation chart, and CSV export. Choose a weekly or yearly subscription, or a one-time lifetime purchase. Add your first coin tonight — two numbers in, and you will know exactly where you stand. CryptoBook is a manual record-keeping tool, not investment advice. All figures are calculated from prices you enter yourself. Terms of Use: https://leanstudio.asia/terms-of-use Privacy Policy: https://leanstudio.asia/privacy-policy Support: support@leanstudio.asia

BIST Cost Assistant is a fast, simple and fully offline calculation tool built for share market investors. Calculate your average share cost, reduce your average cost, estimate dividends and simulate profit or loss—all in one easy-to-use app. Key Features • Average Cost Calculator Add purchases made at different prices and quantities. Instantly view your total shares, total investment and average cost per share. • Smart Cost Averaging Want to lower your average cost? Enter your target average and the app calculates how many shares you need to buy and the required investment. • Dividend Calculator Calculate gross and net dividends based on your holdings and dividend per share. Withholding tax is calculated automatically and dividend yield is also displayed. • Profit/Loss Simulator Enter your average cost and number of shares to instantly estimate your profit or loss at different selling prices. • Save Calculations Save calculations for each stock and edit them whenever you like. • Backup & Restore Export your records as a JSON file and restore them easily on another device. • Multiple Currencies Supports TRY, USD, EUR and more. • Light & Dark Mode A modern interface designed for comfortable day and night use. • Fully Offline No internet connection is required. Your data stays only on your device. Disclaimer: This app is provided for calculation purposes only and does not constitute financial or investment advice. Results are based solely on the information you ente