Most Lightning wallets ask you to choose: give up your keys to a custodian, or run your own node and manage channels yourself. Phoenix refuses that tradeoff. Built by French Bitcoin company ACINQ, it puts a real, self-contained Lightning node on your phone and handles the channel management for you.
The question is what that convenience costs, in fees and in trust. Here is the full picture.
What Phoenix is
Phoenix is a Bitcoin-only, self-custodial mobile wallet for iOS and Android. You hold a standard 12-word BIP39 seed, and you can close your channel and recover funds on-chain at any time, even if ACINQ disappeared tomorrow.
Under the hood, every Phoenix wallet maintains exactly one Lightning channel, opened to ACINQ’s node. Since the splicing update, that channel is dynamic: it grows and shrinks through on-chain splice transactions instead of opening new channels. One channel, one UTXO, no scattered liquidity. 
The fee schedule
This is the part that confuses newcomers, so here it is plainly:
- Sending via Lightning: 0.4% + 4 sats
- Receiving via Lightning: free, as long as you have inbound liquidity
- Receiving without enough liquidity: 1% + mining fees (ACINQ opens or splices the channel for you)
- Channel creation: 1,000 sats
- On-chain sends: mining fees, which you choose yourself
The 1% receive fee is the one that surprises people. It only applies when an incoming payment forces ACINQ to create or resize your channel. Once your channel has capacity, receiving is free. Phoenix now warns you before an incoming payment triggers a channel operation, so the fee never lands as a surprise.
Trust model: self-custodial, not trustless
Phoenix is trust-minimized, not trustless. Your keys never leave your phone, but ACINQ operates the liquidity service provider your channel connects to. That means ACINQ can see payment amounts and destinations, though not payment contents.
If that bothers you, Phoenix lets you point the wallet at your own Electrum server, which reduces third-party dependency for watching the chain. And because you hold the keys, you can always force-close the channel unilaterally.
Who Phoenix is for
Phoenix is the cleanest recommendation for someone who wants real Lightning self-custody without running a node or learning channel management. Onboarding is close to frictionless: install, back up your seed, receive. The first incoming payment triggers automatic channel creation.
It is not for fee minimizers who will run their own node anyway, heavy privacy users (ACINQ sees routing metadata), or anyone who wants altcoins or stablecoins. It is Bitcoin only, and that is a feature.
The verdict
Phoenix sits in the middle on purpose: harder than a custodial wallet, vastly easier than a node in your closet. For most people taking their first step into Lightning self-custody, it is the right starting point.
At a glance
| Maker | ACINQ |
| Custody | Self-custodial, 12-word seed |
| Platforms | iOS 16+, Android 8+ |
| Send fee | 0.4% + 4 sats |
| Receive fee | Free with liquidity, 1% + mining fees without |
| Best for | Beginners who want self-custody without channel management |
New to Lightning itself? Read What is the Lightning Network? first, then compare your options on our Lightning wallets page.
