![](https://i0.wp.com/www.groestlcoin.org/wp-content/uploads/2018/12/coinid-grs-groestlcoin.jpg?fit=1200%2C560&ssl=1)
Secure, fast & easy.
Lowering the bar of entry to offline Groestlcoin storage, all you need is a spare phone and 7 minutes. COINiD makes it easy!
A wallet done differently.
By supporting both hot and cold accounts in the same app you can use our wallet for your daily transactions as well as an offline storage.
![](https://i0.wp.com/www.groestlcoin.org/wp-content/uploads/2018/12/001.jpg?fit=534%2C949&ssl=1)
![](https://i0.wp.com/www.groestlcoin.org/wp-content/uploads/2018/12/002.jpg?fit=534%2C949&ssl=1)
![](https://i0.wp.com/www.groestlcoin.org/wp-content/uploads/2018/12/1.png?fit=500%2C333&ssl=1)
Integrated Cold Wallet
Store your funds offline and sleep tight at night. All you need is a separate Android or iOS device.
![](https://i0.wp.com/www.groestlcoin.org/wp-content/uploads/2018/12/2.png?fit=500%2C333&ssl=1)
Transaction Batching
Groups transactions into one, which save space on the blockchain and lowers your transaction fees.
![](https://i0.wp.com/www.groestlcoin.org/wp-content/uploads/2018/12/control.png?fit=500%2C333&ssl=1)
Complete Control
Your private keys never leave your device. “If you don’t control your private keys, you don’t own your coins.”
![Artboard+Copy+4](https://i0.wp.com/www.groestlcoin.org/wp-content/uploads/2018/12/ArtboardCopy4.png?fit=500%2C333&ssl=1)
SegWit
Support for Segregated Witness which means smaller transaction sizes and lower fees.
![Artboard+Copy+5](https://i0.wp.com/www.groestlcoin.org/wp-content/uploads/2018/12/ArtboardCopy5.png?fit=500%2C333&ssl=1)
Hierarchical Deterministic
Use a single set of keys for multiple coins and addresses. When an address is used, a new one generated.
![Artboard+Copy+6](https://i0.wp.com/www.groestlcoin.org/wp-content/uploads/2018/12/ArtboardCopy6.png?fit=500%2C333&ssl=1)
Cross-Platform
Built with React Native for rapid development cycles and cross-platform support.
More info about COINiD wallet on www.coinid.org.