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YOUR EMAILS.

YOUR DEVICE. YOUR CONTROL.

The only privacy-first AI email assistant where you own the intelligence. Your keys, your provider, your control. Zero-knowledge architecture means we cannot read your emails.

Sovereign privacy. 95% cheaper than Superhuman.

Xiftly Logo

EVERYTHING YOU NEED.

NOTHING WE DON'T NEED.

Privacy-first architecture with hardware-backed security — your emails never leave your device, and we never see them.

Zero-Knowledge Security

Zero-Knowledge Security

Your emails never touch our servers. We mathematically cannot read them — true privacy by design.

BYOK: Bring Your Own AI

BYOK: Bring Your Own AI

Use your own Gemini, OpenAI, or Anthropic API key. Pay as little as $0.50/month instead of $30.

Hardware-Backed Protection

Hardware-Backed Protection

Master keys stored in Secure Enclave (macOS/iOS) or StrongBox (Android). AES-256 + Secure Enclave encryption.

Offline-Capable

Offline-Capable

Works without internet. Your emails stay on your device where they belong.

Multi-Device Sync

Multi-Device Sync

Encrypted 'Dark Blobs' sync across devices — the server sees only random noise.

Smart Email Management

Smart Email Management

AI categorization, priority scoring, one-tap summaries, and draft replies — powered by your own AI provider.

SOVEREIGN INTELLIGENCE.

YOUR KEYS. YOUR RULES.

Your keys. Your provider. Your control. Emails classified and enriched through AI you choose — never through ours.

8-Category Triage

To Respond. FYI. Notification. Meeting Update. Actioned. Marketing. Trunk. Newsletter. Every email, categorized before you open the app.

Sovereign Vault

Private notes extracted from your emails. End-to-end encrypted. Only you hold the key.

Action View

Smart action cards with deadlines, tasks, and meetings — surfaced automatically from your email content.

Newsletter Intelligence

Digest view. Headline extraction. Topic tracking. Your newsletters, distilled.

8 Smart Categories

To Respond
FYI
Notification
Meeting Update
Actioned
Marketing
Trunk
Newsletter

SIMPLE SETUP

POWERFUL RESULTS

Get started in minutes with Xiftly's intuitive setup process and watch AI transform your email experience.

Connect Your Gmail icon

Connect Your Gmail

Securely connect your Gmail account with OAuth authentication. We only access what we need.

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Add Your AI Key icon

Add Your AI Key

Enter your Gemini, OpenAI, or Anthropic API key. Stored in Secure Enclave — never on our servers.

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Start Sovereign icon

Start Sovereign

Done. Your emails are classified into 8 categories using your AI provider. Zero data sent to Xiftly.

Xiftly email intelligence dashboard
8-category intelligent
triage
Save 2+ hours daily on
email management
Sovereign Vault:
E2EE private notes
Action cards from your email content
Newsletter digests
and topic tracking
Daily brief at 8 AM every morning

POWERFUL INSIGHTS

AT YOUR FINGERTIPS

Get detailed analytics about your email patterns, processing summaries, and productivity metrics.

8
Smart Categories
<11μs
Routing Decisions
431+
Tests Passing
Dashboard Mobile

UNDER THE HOOD

What happens when you connect Xiftly.

The architecture behind your privacy:

Master key generated in Secure Enclave (never exportable)
PII scrubbed locally via llama.cpp before any cloud dispatch
Classification runs through YOUR chosen AI provider
Encrypted Dark Blobs for zero-knowledge multi-device sync
Zero email content sent to Xiftly servers

Native Apps for Your Devices

Available Now
✓ macOS (Apple Silicon & Intel)✓ iOS (iPhone & iPad)
Coming Soon
⌛ Android (Coming Soon)⌛ Windows (Coming Soon)

No web version by design — native apps enable hardware-backed security (Secure Enclave/StrongBox) that browsers cannot access.

YOUR PRIVACY IS SACRED

— AND PROVABLE

We don't just promise privacy — we architect it. Your emails never touch our servers,and our zero-knowledge design means a breach of our systems reveals nothing.

Hardware-Tethered Encryption icon

Hardware-Tethered Encryption

Master keys live in your device's Secure Enclave chip and physically cannot be exported. Not by you, not by us, not by anyone.

Zero-Knowledge Architecture icon

Zero-Knowledge Architecture

Your emails are stored only on your device. AI processing uses your own keys — we never see your content. When syncing, only encrypted 'Dark Blobs' touch the cloud — we cannot decrypt them.

Certified Security Standards icon

Certified Security Standards

OWASP-recommended Argon2id key derivation. AES-256-GCM encryption. Automatic memory wiping. GDPR/CCPA compliant by architecture.

On-Device PII Redaction icon

On-Device PII Redaction

Local ML scrubs sensitive data — names, credit cards, SSNs — before anything reaches a cloud provider. Defense-in-depth: active data protection.

Security visualization

Verify, Don't Trust

Monitor your network traffic. Check our architecture docs. Our privacy isn't a promise — it's an engineering constraint.

YOUR COMPUTE, YOUR COST

— NO MIDDLEMAN

Free is genuinely free. Bring your own API keys and pay your AI provider directly — typically under $0.50/month.

Free
$0/month

Your keys, your compute

BYOK: Use your own API keys
Bridge Engine (local Ollama)
8-category sovereign triage
Sovereign Vault (local)
SQLCipher encrypted storage
Single device
Start Free with BYOK
Recommended
Pro
$4.99/month

Full sovereign experience

Everything in Free
SRIN cloud AI routing
E2EE multi-device sync
Background automation
Daily Intelligence Brief
Priority support
Start 30-Day Trial

How We Compare

Xiftly Free

$0
Your DataOn your device
AI ProviderYour choice

Xiftly Pro

$4.99
Your DataOn your device
AI ProviderYour choice + SRIN

Superhuman

$30
Your DataTheir servers
AI ProviderUnknown

Shortwave

$19
Your DataTheir servers
AI ProviderUnknown

HEY

$12
Your DataTheir servers
AI ProviderNo AI

Your AI Cost Breakdown (BYOK)

Gemini~$0.50/month
OpenAI~$0.75/month
Anthropic~$1.00/month
No email content on our servers
No data breaches possible
No AI training on your emails

YOUR QUESTIONS. HONEST ANSWERS.

We believe in radical transparency about how we protect your privacy.

Mathematically impossible. Your emails are stored only on your device, and AI classification runs through your own API keys — we never see your content. When syncing across devices, only encrypted blobs touch our servers — and we don't have the keys to decrypt them. Our zero-knowledge architecture means we cannot access your email content.

There's nothing to hack. We don't store your emails, API keys, or encryption keys. A breach of our servers would reveal... encrypted noise. Your master key is hardware-bound to your device's Secure Enclave, not stored on our servers.

Your master key is hardware-bound to that specific device and cannot be extracted. For new devices, you'll re-enter your master password once to decrypt your sync seed and regenerate your keys. Your encrypted sync data remains safe — it's useless without your master password.

We cannot provide what we don't have. Your emails never touch our servers, so there's nothing to subpoena. Even if ordered to hand over data, we only have encrypted blobs that are mathematically impossible to decrypt without your master key.

Our architecture is fully documented and auditable. The core Rust cryptography code will be open-sourced for independent security verification. We use industry-standard encryption (AES-256-GCM) with OWASP-recommended key derivation (Argon2id).

We use a BYOK (Bring Your Own Key) model. You provide your own AI API key from Gemini, OpenAI, or Anthropic. You pay them directly based on actual usage — typically $0.50-$1.00/month. No expensive subscriptions, no middleman markup.

Still have questions? Our architecture documentation is public and our security core will be open-sourced for independent verification.

RECLAIM YOUR INBOX

— AND YOUR PRIVACY

Unlike Superhuman ($30/mo) or Shortwave ($19/mo), Xiftly gives you better privacy, more control, and 95% cost savings with your own AI.

Read Our Privacy Guarantee

CONTACT US

Union
24/7 Support
Group
Free forever with BYOK
Frame
Bank-level Security