Coin stock

Coin stock is a lightweight personal record-keeping app that helps you track coin and asset holdings as simple local notes on your device. If you want a private way to log quantities, purchase history and storage locations without linking accounts or using online services, Coin stock offers an uncluttered offline tool: there are no trading, buying/selling or transfer functions and all data remains stored only on your device. The app is ideal for collectors and anyone who prefers manual entry and local control over a cloud-synced wallet or exchange-connected solution.

Key Features

⭐ No trading, buying/selling, or transfer functions—purely a personal record tool.

⭐ No connection to external servers or APIs; all data stays on the device.

⭐ Record holdings and purchase history by coin and by storage location.

⭐ Automatic average acquisition price calculation for each asset.

⭐ Display currencies can be switched between JPY, USD and EUR.

⭐ Dark and Light modes plus multi-language support including Japanese, English and Korean.

Advantages

✅ Strong privacy: all entries are stored locally on your device without cloud sync.

✅ Simplicity: Coin stock works like a focused note tool where you input and manage everything yourself.

✅ Useful for collectors and small-scale asset tracking—easy to log quantities and purchase details.

✅ Helpful calculations and display options, including average acquisition price and multiple currency views.

Disadvantages

❎ Not a transactional app: it does not support trading, transfers, buying or selling.

❎ No wallet functionality or automated market data feeds because it avoids external connections.

❎ Manual entry required for records and updates; there is no automatic import from exchanges or services.