Record your Bitcoin purchases and sales and track the growth and value of your portfolio in real time – without compromising your privacy.
Free · No registration · Data stays on your device
No exchanges, no wallet connections. Just your transactions, clear metrics and the current BTC price.
BTC holdings, total fiat invested, portfolio value, average purchase price and current profit or loss.
Visualise your portfolio performance over time. Rotate to landscape for a larger chart view.
See how the fiat value of your BTC has developed over time based on actual historical prices.
Bulk transfer of transactions without manual entry.
USD, EUR or CZK – with the ability to mix currencies across transactions.
Press the button or place your phone face down to blur sensitive information.
Rotate your phone and watch your portfolio value, BTC price and holdings on the full screen – with your purchases marked right on the chart.
Someone looking over your shoulder? One press of a button – or placing your phone face down – blurs all values.
Most portfolio trackers require an account and store your financial data on their servers. BTC Gains Checker works in a completely private way.
Transactions are stored exclusively locally. No registration, no account, no server. You can export them as a backup or work with them on your computer, then import them back.
Secure access with a passcode, Face ID or fingerprint. The passcode also encrypts your data. This feature is optional. We recommend enabling it to protect your private data.
Optional iCloud/Google Drive backup uses AES-256-GCM with a key derived from your passcode. Only an unreadable file reaches Apple/Google servers.
The app contains no analytics or advertising SDK. It connects to the internet only to update current and historical BTC prices in several currencies.
Free to download. Your data stays with you.
Free · No registration · Data stays on your device