Built something pretty cool 👀
A new L2 called Spark dropped a few weeks ago, and it instantly blew my mind.
So I went to work. Since then, I’ve built the foundation for a fully web-based, self-custodial Bitcoin Lightning wallet.
Here’s what it can do so far:
1. Send & receive sats instantly
2. Get your own LNURL address (e.g. you@blitz-wallet.com)
3. Pay to Lightning addresses across the network
4. Same clean, updated UI as Blitz mobile
Try it👇
https://wallet.blitz-wallet.com
Built on Spark ⚡
Still early — feedback welcome!
Blake Kaufman
Blake@blitzwalletapp.com
npub1nhjn...xfyh
22 y/o | Bitcoin
{{{
GitHub: https://github.com/blakekaufman
Gist Proof: https://gist.github.com/blakekaufman/49a76ec753c6e0928f9a03f5ba2ae64e
}}}

New release is live on all platforms!
With #cashu + Blitz Wallet, you can:
- Buy gift cards
- Get VPNs
- Access AI tools
- Swap Cash ↔ Liquid
- Send Lightning
- Pay to Liquid addresses
We also improved our built-in POS terminal!
🔽 Grab the latest version now!
🔵 iOS (TestFlight):
🟢 Android (Google Play):
https://play.google.com/store/apps/details?id=com.blitzwallet
Or grab the APK here:

Join the Blitz: Bitcoin Payments Wallet beta
Available on iOS
GitHub
Release Android-v0.4.3-beta · BlitzWallet/BlitzWallet
Release Notes
Features
Ecash Improvements
Increased eCash Limits: Users can now customize their maximum receive and balance amounts for eCash tra...
One thing I think people forget sometimes is optionality. No one is the same therefore we cannot believe everyone will want the same thing. I think us Bitcoiners sometimes get too caught up thinking everyone is eventually going to think/want the same things as us instead of designing more versatile products to handle more cases.
A Blitz Wallet Update is Live!
* Smarter tx sorting
* Seamless tipping w/ LNURL & contacts
* Custom eCash limits + store/contact payments
* Manual swaps now include eCash
* App works even if LN node is down
APK: https://github.com/BlitzWallet/BlitzWallet/releases/tag/Android-v0.4.2-beta%E2%80%A8Play Store + iOS pending approval
Live on zapstore
Detailed release notes can be found:
What we updated for Tips payouts:
You can now use LNURLs or Blitz contact names in the POS—track paid/unpaid, group by contact, and payout with one tap.
No more manual invoicing. No more friction.
What we updated for #cashu:
Set custom balance + receive limits, pay Blitz contacts, perform internal transfers, or shop the Blitz Store with sats held in eCash.
Now you choose how much to hold, how much to send
👇 POS + eCash updates in action

Blitz Wallet eCash Update: Pay with eCash, Lightning, and Bitcoin in the Store & Send to Contacts
Blitz Wallet
To whoever it may concern,
Google Play says Blitz Wallet is “not available in your region”?
Translation: “Download it from GitHub instead.”
#bitcoin #GooglePlaySaidNoGitHubSaidYes
#BitcoinHasNoBordersButAppStoresDo

GitHub
Release Android-v0.4.2-beta · BlitzWallet/BlitzWallet
eCash Revamp: More Flexibility & Security
Deterministic Proofs: eCash proofs are now linked to your Blitz Wallet seed phrase, allowing effortless ...

Last month I presented Blitz at a @Liquid Network developer bootcamp—diving into all things Blitz.
Now you can watch the full talk!👇
Link:
Thanks to the human rights foundation for highlighting our new release in their weekly update!
Check it out here:

Human Rights Foundation
HRF's Weekly Financial Freedom Report #66
The Financial Freedom Report is a newsletter focusing on how currency plays a key role in the civil liberties and human rights struggles of those l...