Licensable app platform

Your product on every platform, on a core you license, not rebuild.

Hullcore is a modular app foundation for iOS, Android, .NET and web. License the core, brand it as your own, and ship a production product, without building or maintaining a four-platform stack yourself.

The license

One key. Issue, entitle, verify, revoke.

Hullcore ships as compiled, licensed packages, not source. A single signing key entitles exactly the modules you license, verifiable offline.

Signing key
Auth Payments Notifs Licensing Ops Data Assistant

Entitled modules run. Everything else falls back to a safe default.

  1. Issue

    You get a single signing key for the modules you license.

  2. Entitle

    The key opens only those modules; the rest stay closed at a safe default.

  3. Verify

    Each build verifies its entitlements offline; no phone-home required.

  4. Revoke

    Entitlements are updated or revoked at the key.

Inside the core

The modules you can license.

The essentials are built into the core and enabled per module. Take what your product needs; leave the rest behind a safe default.

Auth & sessions

M01

Sign-in, sessions and token lifecycle handled across all four platforms.

Payments & wallet

M02

Checkout, balances and a wallet ledger wired into the shared backend.

Notifications

M03

Push and in-app messaging with one delivery pipeline behind the core.

Licensing & enforcement

M04

The signing key, entitlements and offline verification that gate every module.

Operations & monitoring

M05

Health, logging and metrics so a shipped product is one you can actually run.

Data at rest

M06

Being designed for KVKK compliance: sensitive data can be encrypted at rest inside the foundation.

Assistant-ready surfaces

M07

Functions like catalog and booking open to assistants through App-Actions; the concierge surface is assistant-ready.

Depth

More than you see.
40+ modules per platform.

Beneath the licensable capabilities, real modules run on every platform; all from one core, behind one security model.

25Backend 43Android 38iOS ~30Web
Licensing & AILicensing/entitlement gate (Ed25519) · AI intents/MCP surface · assistant-ready concierge client
Auth & sessionSession/token lifecycle + refresh · social/OAuth · biometric lock · OTP · two-factor (TOTP)
Storage & dataSecure storage · PII encryption at rest · client networking (401 refresh, cert pinning) · persistence · cache
UIDesign tokens (light+dark) · component library · ViewModel/MVI base · navigation · app shell
Platform servicesPermissions · push · local notifications · widgets/Live Activity · media picker · QR scanner
Observability & revenueAnalytics/crash (consent-first) · in-app purchases · ads · maps · bot defense · PDF
FeaturesWallet (balance/ledger) · invoice (e-invoice) · reviews/rating · data rights (KVKK/GDPR) · legal/consent CMS
CoreResult/error taxonomy · logging + PII redaction · validation · configuration + version gate · localization

One core, four targets

Kept in check. Shipped as compiled packages.

iOS, Android, .NET and web build from one foundation; parity is checked continuously, delivered as compiled, licensed packages.

iOSSwift · SwiftUI
The same product's native iOS version.
Compiled package
AndroidKotlin · Compose
The same product's native Android version.
Compiled package
Backend.NET
API and services behind the apps.
Compiled package
WebReact / TypeScript
Console, site and app.
Compiled package

One security model across every target; fixes and updates flow to all four at once.

Who it's for

Built for teams that ship, not rebuild.

Owner-operators
Service, booking, fitness/health and fintech businesses that need a customer-facing app without running a four-platform engineering team.
Agencies & delivery leads
A reusable, brandable foundation to deliver client apps faster, at better margin; your brand on the surface, one core underneath.
Product & tech leads
Evaluators who want real control, clear licensing and security, without committing to a rewrite.

Licensing

License what you need. Keep what's yours.

License the modules and platforms your product needs. What's yours and what stays with the core is clear from the start.

What you license

Your product, your brand.

  • The modules and platforms you choose.
  • Your product, shipped under your own brand.
  • Your own AWS/Firebase deployment; your data stays entirely yours.
  • Custom work, built to your spec.
What stays with the core

The foundation and its key.

  • Maintenance, security and version upkeep stay with the core, not on you.
  • One security model, applied across all four platforms.
  • Improvements and security fixes reach you automatically.
  • The IP and the signing key live in the core; your product is protected from cloning.

Custom work is built, licensed, and yours to run.

Contact

Start a licensing conversation.

Hullcore is a licensed product, still in development. Tell me what you're building and which platforms you're targeting, and we'll work out whether the foundation fits.

orsend a message to info@hullcore.dev

Already using a Hullcore app? Get support.

Türkiye first, then the EU Targeting KVKK compliance One signing key

Writing

All writing →