Thank you for your knowledge and insight 🙏. I am trying to setup a way for people to pay for a volleyball open gym night with lightning and it looks like Zeus is going to be the best option that doesn't involve a custodial wallet or running my own node.
1. Zeus gives you a lightning address which can be paid to as many times as you'd like. So yes.
2. Yes basically the same as Phoenix and with a more favourable fee structure right now too.
3. Yes and no. Fortunately you can use their always on feature, and you can also use their offline payment feature. The offline pay is a semi-trusted solution that becomes more trustless the more apps and wallets support the protocol. They do also take a larger fee for the convenience and you should open the app within 24hrs to avoid complications that lead to forced closed channels that end up costing even more in fees.
Read more about it here: https://github.com/supertestnet/zaplocker
Here's the release notes where they reference the above project as what powers their lightning address.
Discussion
Please take heed about opening the app every day and making sure you claim any queued funds within 24h.
nostr:npub1xnf02f60r9v0e5kty33a404dm79zr7z2eepyrk5gsq3m7pwvsz2sazlpr5 am I giving correct advice here? What's the risk of not opening the app once a day minimum?
Opening the app every 24h or so is good practice.
You need to claims payment from the ZEUS Pay lightning address within 24 hours, otherwise the funds return to the sender
It also helps mitigate chances of force closes due to in transit payments, and helps decrease subsequent startup times