Stakenet (XSN)

They are super ambitious but have already made great headway for their end goal of cross chain interoperability. They invented Trustless Proof of Stake (TPoS) which has been live for months and works great. It is by far the best offline staking solution to date, simple to use and secure. They have confirmed Ledger and Xeeda integration which will allow Cold staking from those devices. They are also developing their own hardware device which will be more than a simple crypto wallet and will have built in smart functions. They were one of the first PoS/MN coins to be Segwit, Lightning and Atomic Swap ready.

They are currently running public testnet for their Lightning channels and swaps which hopefully this weekend will go full public on the mainnet. Its a bit technical at the minute but now they have completed this stage they are about to drop their new wallet which will be a 1 click solution. Lightning is a pretty big deal for Stakenet as it will allow instant transactions by removing block time limitations. As that is removed it will also increase TPS to theoretical billions done through the network by removing block size limitations and at barely any cost.

This is all laying the foundation for interchain connectivity for the new multi-currency wallet which will be hosted on their MN network. Blockchains will be layered on the network meaning you don't need to download the blockchains in the new wallet and just sign transactions via lightning invoices making it super lightweight and fast.

They are building a DEX which with the backbone running through the new lightning network on their MN's they just need to add the orderbook and it will be pretty much done for version one. All trading fee's generated on the DEX will be paid back to MN holders too which is great.

With this core foundation in place they will then start letting 3rd party devs build dapps on the network which can also take advantage of their unique hardware wallet.

They also launched their Cloud services to make crypto easy for beginners so people can just just stake from there. The Cloud currently supports XSN, Strat and PIVX. Decred and Quantum are next to be added with many more on the way. They are also rolling out MNaaS very soon. This is a service they are providing where they setup, maintain and update your MN for you. It's a trustless services so you keep your coins safely in your own wallet offline too so thats great.

Privacy features running through TOR on their MN network are also coming. Again fee's generated from this go to MN holders, in fact all services from DApps running on their network which generate fee's will always be paid to MN holders.

There is loads more so read up on them but the kicker is their Mcap is only $13M so pretty sure that fits your criteria of undervalued.