In alpha · macOS 14+ PCC · AI Arkade · Lightning Lightspark Grid Cerebras

The AI wallet built for Apple Silicon.

On-device intelligence, Private Cloud Compute, global fiat rails, and a self-custodial Lightning wallet — all in one native macOS app.

Launch Web App Get Started ⚡ Alpha Access · Lightning
Nostr
npub15jnskzcd5tga5rq2w0af0h46tf6lzkdkxjh58hewqrdglt0a0jkq9ygv88
Follow

Click npub to copy · replaces your current clipboard · paste into any Nostr app to connect

higherMark · Alpha
Ramp
Wallet
AI
Profile
Portfolio Balance
$1,842.00 USDB
Sandbox
Send
Receive
Exchange
Rates
MXN · SPEI−$200.00
BRL · PIX−$88.50
Incoming USDB+$500.00
EUR · SEPA−$440.00
PCC ready · Apple Silicon
41,820 sats
Lightning Balance
41,820 sats
offchain: 38,200 onchain: 3,620
npub · public key
npub15jnskzcd5tga5rq2w0af0h46tf6lzkdkxjh58hewqrdglt0a0jkq9ygv88
Receive
Send
Arkade self-custody · Boltz swaps
AI · Cerebras
2,200 tok/s
What's the current BRL/PIX rate?
higherMark AI
Ask anything…
↑
STEP 1 · IDENTITY
Identity active
npub · public key
npub15jnskzcd5tga5rq2w0af0h46tf6lzkdkxjh58hewqrdglt0a0jkq9ygv88
nsec · private key
•••••••••••••••••••• · click to reveal
Backup nsec
Show seed
1,000 credits

Powered by  Apple PCC · Cerebras · Arkade · Lightspark Grid · Lightning

Step 1 · Instant
Download the app
Your nsec + npub + Lightning wallet are generated automatically on first boot. No sign-up.
Step 2 · Free
1,000 free AI credits
Every new user gets 1,000 credits on launch — $1 of Cerebras inference. No card required.
Step 3 · Optional
Top up or join the pool
Add USDB to your wallet or contribute to the Nostr-AI-Pool for unlimited inference from the shared fund.
Every surface

Mobile, browser, and the web.

One Lightning balance across every device, synced in real time.

9:41●
Fastest inference
AI
Profile
Wallet
Mobile app · Coming soon
higherMark
2.41M sats
SendReceive
Lightning · live
Web extension · Coming soon
app.higherMark.xyz
Balance
$1,842 USDB
Lightspark Grid · synced
Sendinstant
Receiveinstant
Visa cardroadmap
AI · Cerebras2,200 tok/s
Web app · Live now →
Interoperable

Built to bridge every gap.

One balance across iOS, browser, and web — synced instantly over Lightning. No matter which surface you're on, it's the same wallet.

iOSMobile
BrowserExtension
WebApp
higherMark
5412 ·· ·· 7390
Lightspark · LightningVISA
Apple Pay Google Pay
Spend anywhere

A Visa card in Apple Pay or Google Pay.

Issued by Lightspark. Settled over Lightning, in real time. Spend your USDB balance anywhere Visa is accepted — no bank account required.

⚡
Lightning settlement
Every card transaction clears over Lightning instantly. No 3-day ACH delay.
🌐
On the roadmap
Visa card issuance is in Phase 3. Self-custodial wallet and AI inference are live today.
NOSTR · AI · POOL

A shared intelligence resource.

Community-funded AI credits. Contribute to grow the pool. Instant access on first launch. The more the pool grows, the more everyone benefits.

Pool Status · Live
Pool balance $—
$—
contributed
1.0%
platform cut
—
contributors
Cerebras · 2,200–3,000 tok/s
GPT-4o / Claude · ~80–90 tok/s
~27× faster inference via pool
Open the Pool in the web app →
⚡
Instant access, no key
Launch the app → your npub is generated → pool credits are available immediately. No API key, no account, no setup.
📊
Difficulty adjustment
The platform cut scales from 1% to 10% as the pool grows — like a mining difficulty that self-calibrates to cover operating costs. Small pool → low cut. Large pool → higher cut, more usage sustained.
🏊
Toggle on/off
Use pool mode or keep it private. Want full privacy? Switch to PCC (Apple Silicon) or add your own Cerebras key. Pool mode is opt-in.
🚀
Why Cerebras?
Cerebras runs on custom wafer-scale silicon (CS-3 chips). Llama 3.3 70B streams at 2,200 tok/s — 27× faster than GPT-4o. You get real-time responses, not typing animations.
Intelligent

On-device AI with Private Cloud Compute.

Uses Apple's FoundationModels framework. Inference runs on your Apple Silicon — or offloads to Apple's private, verifiable cloud when a task needs more power. Your data never trains a model.

🔒
Private by design
PCC requests are cryptographically attested. Apple cannot see your data, and neither can anyone else.
⚡
Cerebras fallback
When PCC is unavailable, seamlessly routes to Cerebras — 3,000 tokens/sec on Llama 3.3 70B.
AI Engine

Private Cloud Compute

Requires macOS 26+ · Apple Silicon. On older systems, Cerebras is automatically used.

Private Cloud Compute · Active
Streaming response · 2,847 tok/s
Try the AI in your browser →
Arkade Wallet
41,820 sats
offchain: 38,200 · onchain: 3,620
npub
npub1qfz…r84m
Receive
Send
Self-custody

Your Nostr identity. Your Lightning wallet.

Generate an nsec on first launch — your Nostr private key deterministically derives an Arkade Bitcoin wallet. Same keys everywhere. Self-custody with Boltz Lightning swaps.

🔑
nsec → Arkade wallet
Your nsec private key deterministically generates your BIP39 mnemonic and Arkade wallet address.
🌐
Connect your own arkd
Point the app at your own arkd node for maximum sovereignty. Toggle between hosted and self-hosted.
Alpha · Early access

higherMark is in active development. Some features are incomplete.

The macOS app is the primary build. Features marked Coming Soon are in the roadmap. PCC requires macOS 26 on Apple Silicon. Grid features work in sandbox today.

Get Alpha Access via Lightning
One ecosystem

Built on open rails. Private by default.

PRIVATE CLOUD Apple PCC FAST INFERENCE Cerebras HIGHERMARK APP macOS GLOBAL RAILS Lightspark Grid SELF-CUSTODY Arkade · arkd
Access

Not a subscription.
An invitation.

higherMark is built in public, by builders, for builders. All contributors are welcome — two ways in.

Coming Soon

Free release — spin up immediately with your npub, lower features out of the box. Add your email at any time to unlock more. More changes in development soon.

Pricing is free before AI inference unless plugging in self-hosted models. A newer version will be added to the macOS app soon. Thank you.

Contributing Member
Monthly · Membership
$19.99 /month
  • Download the macOS app — today
  • Invited to open PRs and shape the product
  • Voting rights on features and direction
  • Priority support — direct line to the builder
  • Wallet seeded with $2–$15 USDB on join
  • Monthly credit rewards — forever
  • Opportunity to join the project full-time
or pay with Lightning
Monthly · Build updates
$2 / month
  • Newsletter — what's shipping, what's next
  • Early access to every alpha release
  • Discord access to the builder
  • Listed as a supporter in the app
  • Source code · Contributing Member only
  • Voting rights · Contributing Member only
free
Get started with npub only →
How wallet credits work
$2–$5
On join
0–1 month
$5–$10
Monthly
1–3 months
$10–$15
Monthly
3+ months

Credits are real USDB in your Lightspark Grid wallet. Spend them on AI inference, send to anyone via Lightning, or cash out to your bank via ACH, PIX, or SEPA — once Grid production rails are live.

Contributing Member · What it actually means
📦
Full source code — no strings
When you join, you get access to the complete repository. Read it, fork it, audit it. You own what you paid for.
🔀
Open PRs. Ship features.
Contributors are invited to open pull requests directly. Good work gets merged. The best contributors get an offer to join the project full-time as it grows.
🗳
Voting rights — on everything
Feature direction, design decisions, roadmap priority. Your vote is weighted by how long you've been a member. Contributors who stick around shape the product.
💰
Credits that compound
Your wallet is seeded the day you join and topped up every month. The longer you've been a member, the more you receive. These aren't points — they're real USDB you can spend, send, or cash out.
Download

Run it today.

Apple Silicon · macOS 14+ · unsigned alpha build.
Get Contributing Member access above, then download below.

higherMark_0.1.0-alpha_aarch64.dmg · Apple Silicon only
After download: open DMG → drag to Applications → right-click → Open
macOS will ask to approve the unsigned app once — System Settings → Privacy & Security
What's next

Built in layers.

Phase 1 · Live Alpha
Shipping now
macOS App
Tauri native. Ramp, Wallet, AI, Profile. PCC + Cerebras. Lightspark Grid sandbox.
Nostr-AI-Pool
Community credit pool. Contribute USDB, draw inference credits, earn pool shares.
Lightning Wallet
Self-custodial arkd Lightning wallet. Send and receive sats instantly.
Phase 2 · Building
Coming soon
iOS App
SwiftUI. Full feature parity. Face ID. Apple Pay. Optimized for iPhone Air.
iPhone · iPad
Web App
PWA from any browser. Cerebras AI. Grid ramp. No install required.
Browser
Chrome Extension
Lightning payments inline on any webpage. Balance always one click away.
Web Extension
Clerk Auth
Email OTP tied to your npub. Unlocks rewards, pay-as-you-go credits, and Grid fiat account.
Phase 3 · Roadmap
On deck
Self-hosted arkd
One-click arkd node from the app. Full self-sovereignty mode.
Visa Card
Spend USDB via Visa in Apple Pay and Google Pay.
Nostr Verification
Source contribution record published to iris.to via git for on-chain identity trust.
iris.git · NIP-05
Contributor identity will be verifiable on-chain — source records published to iris.to via git for open trust and attribution.
Intended launches

Built for every surface.

Platform-optimized releases planned for iOS, browser, and desktop.

iPhone Air · Soon
📱
iOS App
iPhone · iPad · iPhone Air
SwiftUI — native performance, Face ID
Wallet, Ramp, and AI tabs
Apple Pay integration
Optimized for iPhone Air thin profile
🌐
Web Extension
Chrome · Safari · Firefox
Lightning payments inline on any page
Balance always one click away
Nostr identity attached to browser
No install beyond the extension
🖥
Desktop
macOS · Alpha now
Tauri native — ships today on Apple Silicon
PCC + Cerebras AI on-device
Full Lightspark Grid sandbox
Windows build on the roadmap

Versions optimized per platform — feature set expands with each release. macOS ships first.