No. rToken app does not support Ledger. Please remember not to connect APP using Ledger, otherwise your assets will be lost.
1) There will be no need to wait for a 3 days cooldown period to withdraw the staked SOL assets. rSOL App users can transfer and trade rSOL assets at any time to liberate liquidity and hedge price risks.
2) There is no need to learn the complicated Tower BFT consensus mechanism or staking reward calculation rules if you want to maximize staking rewards. With rSOL App, users only need to follow a few steps to deposit SOL into the rSOL contract, which will automatically select the best validator for delegation by the profit maximization strategy.
Users could redeem the staked SOL and corresponding rewards at any time through rSOL App. After receiving the request of redemption, rSOL contracts will automatically unbond and withdraw SOLs from the Solana chain, then send the SOL tokens to the user’s Solana address after 2 Epoch of Solana blocks, which may be around 3~5 days(depending on the Solana’s epoch time).
You can swap rSOL tokens between SPL and StaFi native at 1:1 ratio through the swapping function in rAsset. Please refer to this guide to swap rSOL: https://docs.stafi.io/rtoken-app/rasset/swap-guide
The rSOL exchange rate Ci grows with the increase in staking income. It is determined by the total number of SOL locked in the staking contract Qstk, the total number of redeemed SOL Qred, the number of staking rewards Qrew, the number of slashes Qslh, the commission rate Rcom, the total number of rSOL issued M, and the total number of burnt rSOL N. The calculation formula is as follows:
1) When the rSOL App is launched, rBridge will at the same time support rSOL two-way cross-chain bridge function from StaFi chain to Ethereum, so that users can have access to DeFi applications on Ethereum by using rBridge App.
3) StaFi will not only support the circulation of rSOL in the Solana ecosystem but also empower rSOL’s engagement in the DeFi protocol of Ethereum/Polkadot/BSC chain through cross-chain bridge services.
Stake SOL: There are no commissions when users stake SOL through StaFi, but you have to pay the related gas fees on both StaFi chain and Solana chain.
Gas fee amount= N * (StaFi chain Gas Fee + Solana Gas Fee), and the payment is made by FIS, StaFi mainnet token.In most cases, N is set to 2.
Unbond SOL: 0.2% redemption fee(based on the amount of unbonded rSOL and 10% Staking Reward Commission(based on the total staking rewards generated).
After the user completes the "Redeem" operation, s/he has to wait for around 3~5 days(depending on the Solana’s epoch time) to get the redeemed SOL tokens, which will be automatically sent to the users’ designated account after the lock-up period.