Zero Cloud Storage • AES-GCM Encrypted

Your Private Sanctuary for Important Documents

Scan, organize, and safeguard your passports, IDs, leases, and lab reports. Get local deadline reminders, discover smart document connections, and query your vault with on-device intelligence.

No Account Required
Encrypted On-Device
No Third-Party Tracking
iOS 17+ & iPadOS
Family Vault

Family & Holder Profiles

Keep passports, visas, and medical records separated by family member without mixing up sensitive files.

Jordan Avery 4 Documents
Taylor Avery 3 Documents
Household Shared 6 Documents
Smart Alerts

Urgency-Grouped Renewals

Color-coded urgency buckets (Critical, Soon, Upcoming) with local notification schedules before you face penalties.

US Passport Expires in 18d
Driver License Due in 4mo
Auto Insurance Renewed (1yr)
Smart Diff

"What Changed" Comparison

Compare new vs. old passports, follow-up lab panels, or updated lease terms side-by-side with % delta metrics.

Passport No. P9821 → P4410
LDL Cholesterol -14.2% ↓
Expiry Date +10 Years
Why Altheru

Engineered for Privacy, Designed for Peace of Mind

Most document apps upload your sensitive IDs to remote cloud servers. Altheru takes the opposite approach: everything stays encrypted on your device by default.

Encrypted Local Vault

Your documents are encrypted on disk with AES-GCM cryptography. Files are never synced to third-party clouds or exposed to remote data leaks.

  • Apple Vision On-Device OCR
  • Zero account registration required
  • Secure AirDrop / Files decrypted export

Proactive Renewal Tracking

Never scramble at the last minute or pay registration late fees. Altheru schedules local iOS notifications at intelligent intervals before deadlines hit.

  • 1yr, 6mo, 3mo, 1mo, 1wk notifications
  • Critical / Soon / Upcoming dashboard badges
  • Custom follow-up and appointment tracking

Smart Links & Relationships

Altheru automatically connects documents by chronological renewal chains, shared entities, family members, and semantic topics.

  • Automatic passport → visa → renewal links
  • On-device vector similarity (128-dim)
  • Confidence match scores for related papers
Search & Q&A

Instant Offline Search & Natural Language Q&A

Search every word, number, date, or category on your device with lightning speed. When signed in, ask natural language questions across your vault to extract specific answers without opening five different PDFs.

  • On-Device Search: Filter across names, numbers, issuers, and dates offline.
  • Similar Match: Find related documents through semantic vector matching.
  • Vault Ask (Q&A): Ask "When did I get my last booster?" and receive an accurate, cited answer.
“What is my auto policy deductible?”

Your comprehensive and collision deductible is $250 under Policy #POL-7820-A, effective through Dec 31, 2026.

Source: Policy_Sample_2026.pdf 98% Match
Visual Continuity

Compare Renewals & Lab Reports Over Time

Stop guessing what changed between your previous and current documents. Altheru aligns older and newer papers to show field-by-field differences and quantitative health/financial metrics.

  • Renewal Diffs: Track updated passport numbers, issue dates, and expiry limits.
  • Biometric & Lab Trends: Visual percentage deltas for cholesterol, glucose, and vitals.
  • Contract Adjustments: Verify fee updates, term changes, or revised clauses.
Annual Lipid Panel (2024 vs 2025) Tracked Deltas
Total Chol. 218 mg/dL 186 mg/dL (-14.6%)
LDL 142 mg/dL 112 mg/dL (-21.1%)
HDL 48 mg/dL 54 mg/dL (+12.5%)
Real-World Utility

Built for Everyday Documents That Matter

From international travel to family healthcare and legal property records, Altheru handles your most critical papers with elegance.

Travel & Global Mobility

Passports, Visas & International Permits

Track passport 6-month validity rules before booking flights. Keep visas, residency cards, and travel insurance linked to the right family member.

Passports Visas & ESTA Travel Insurance Global Entry
Family & Household

IDs, Birth Certificates & School Papers

Organize driver licenses, social security cards, birth certificates, and school records for every child and parent under designated holder profiles.

Driver Licenses Birth Certificates National IDs Immunizations
Health & Wellness

Lab Results, Prescriptions & Health Cards

Store medical records securely. Compare annual bloodwork results, track medication renewal dates, and keep health insurance cards handy in emergencies.

Blood Panels Insurance Cards Doctor Summaries Vaccine Cards
Legal & Property

Leases, Vehicle Titles & Service Contracts

Never miss a lease renewal window or auto registration deadline. Track warranty expiration dates and maintain a verifiable digital archive.

Lease Agreements Vehicle Titles Home Warranties Employment NDAs
Zero Compromises

Privacy by Architecture, Not Just Policy

We built Altheru around a simple philosophy: your personal documents are sacred. You should never have to hand over your private papers to enjoy a modern app.

Local AES-GCM

Files stay encrypted on disk on your device. We have zero server access to your documents.

Transient AI Only

Optional AI parsing processes files in ephemeral memory only. Never stored on our servers.

No Ad Trackers

No advertising SDKs, no behavioral tracking, and no third-party data broker partnerships.

Read Our Complete Privacy Policy →
Got Questions?

Frequently Asked Questions

Everything you need to know about Altheru, local storage, and optional AI intelligence.

Do I need to create an account to use Altheru?

No. You can scan, organize, search, compare, and receive reminder notifications completely offline without an account. An optional account or guest sign-in is only needed if you choose to use enhanced cloud AI extraction or vault Q&A.

Where are my document files stored?

Your documents are stored directly in your device's local sandbox, encrypted with AES-GCM. Altheru does not maintain a cloud copy of your files, so your documents remain strictly under your control.

How do deadline reminders work?

Altheru uses Apple's local notification engine on your iPhone or iPad. Reminders are scheduled locally for 1 year, 6 months, 3 months, 1 month, and 1 week before expiry dates, requiring no internet connectivity to fire.

What happens when I use AI Metadata Extraction?

When you trigger an AI scan, the document is sent over an encrypted HTTPS connection to our secure processing API. The model extracts key dates, titles, and metrics, and returns them to your device. The file is discarded immediately after processing.

Can I export or share my documents?

Yes. You can export decrypted copies anytime via the standard iOS Share Sheet to AirDrop, Files, Mail, or any app of your choice.

Is Altheru a replacement for legal or medical advice?

No. Altheru is an organizational and reminder tool. Always verify official expiration guidelines and medical results with relevant government authorities and qualified healthcare providers.

Take Control of Your Critical Documents Today

Experience the calm, organized sanctuary of Altheru on your iPhone and iPad. Never lose track of a renewal again.

Download Free on App Store