# Fees and Contributions

## Pricing

### Publication Purchase

Browse authors and previews, purchase publications on the go for **800 sats** (minus 100 sats and transaction fees).

### Author Sponsoring

Sponsor the author for **0.046 BTC** (minus 0.004 BTC and transaction fees).

### Review Thanks

Reviews are rewardable for **70 sats** (minus 21 sats and transaction fees).

## Use of Funds

Funds collected by the platform serve the development of free AI features for authors (development and hardware).