# App Overview

- [General Mechanics](/snaps-whitepaper-ru-new/app-overview/general-mechanics.md)
- [Login & Sign Up](/snaps-whitepaper-ru-new/app-overview/login-and-sign-up.md)
- [Wallet](/snaps-whitepaper-ru-new/app-overview/wallet.md)
- [Energy](/snaps-whitepaper-ru-new/app-overview/energy.md)
- [Level & XP](/snaps-whitepaper-ru-new/app-overview/level-and-xp.md)
- [Reward Calculation](/snaps-whitepaper-ru-new/app-overview/reward-calculation.md)
- [Referral System](/snaps-whitepaper-ru-new/app-overview/referral-system.md)
- [Snaps NFT Marketplace](/snaps-whitepaper-ru-new/app-overview/snaps-nft-marketplace.md)