Realtime DSP Pipelines
Low-latency AudioUnit graphs in Swift with custom AVAudioEngine nodes. Sample-accurate scheduling, deterministic output, instrument-grade fidelity.
SERVICE PORTFOLIO
Five disciplines, one quiet standard of craft
From the first sketch to the App Store live-state — and every audit log in between. We accept a small number of engagements each year so that every project receives our full attention.
SERVICE 01
Programmatic Audio Synthesis
We build DSP pipelines that generate sound — not store it. Smaller binaries, infinite variety, deeper emotional resonance.
Procedural Rhythm Engines
Turing-pattern drum sequencers, Euclidean beat generators, generative polyrhythm composer with adaptive tempo curves for practice and focus sessions.
Adaptive Ambient Synthesis
Texture generators that read time-of-day, ambient light and motion context to render harmonic beds which feel inevitable rather than prescribed.
Offline Score Archiving
Encrypted local repositories of generated scores, indexed by difficulty, key and tempo. All metadata stored in your private vault.
Spectral Analysis
On-device FFT analysis that surfaces difficulty curves, harmonic density and practice session deltas — without ever uploading a single audio sample.
Practice Telemetry (Local)
Per-piece time-on-task, mistake heatmaps and micro-progress reports rendered as procedural visualizations on the device.
SERVICE 02
Immersive Visual Interaction
Interfaces that read the room — and the user — to compose scenes that feel inevitable rather than canned.
2A
Procedural Scene Composition
We build SwiftUI / Metal scenes that compose themselves at runtime — depth layers, particle systems, lighting and typography all generated procedurally from a small set of user-context signals. No asset pipelines, no design debt.
- ▸ SwiftUI declarative flows
- ▸ Metal compute shaders
- ▸ Lottie alternative — fully generated
- ▸ 120 Hz adaptive motion
2B
Physics-Aware Motion
Springs, dampers and tactile curves tuned by hand. We respect platform conventions (iOS Human Interface Guidelines) while pushing past them where it serves the user.
- ▸ Custom spring physics
- ▸ Haptic-synced transitions
- ▸ Contextual micro-animations
- ▸ Reduced-motion respect (a11y)
2C
Generative UI Layouts
Layout systems that compose themselves from data and intent. Every list, every onboarding flow, every error state is generated procedurally — small, deterministic and infinitely varied.
- ▸ Token-driven design system
- ▸ Adaptive typography
- ▸ A11y-first contrast logic
- ▸ Dark/light orchestration
2D
Sensory Polish
The gap between tap and response is where trust is built or lost. We obsess over it — auditing every screen for ambient sound cues, haptic signatures and the silent theatre of transitions.
- ▸ Custom CoreHaptics patterns
- ▸ Procedural UI soundscape
- ▸ Contextual sound design
- ▸ Quiet-mode compliance
SERVICE 03
Privacy as Architecture
Privacy is not a settings page — it is the foundation. Every system we build is engineered to keep user data exactly where it belongs: in the user's pocket.
AES-256 Local Encryption
Every on-device store is wrapped in AES-GCM with key material held exclusively in the Secure Enclave. Brute-force resistance is a feature, not an afterthought.
Zero-Knowledge Sync
Where users opt-in to cross-device sync, we build zero-knowledge pipelines: keys live on the device, the server only sees ciphertext, and the user can revoke at any time.
Multi-Jurisdiction Residency
We map data flows to local storage requirements — EU users on EU servers, Chinese users on Chinese servers, Saudi users on Saudi servers — and audit every cross-border move.
Transparency Reports
Every quarter we publish what data moved where, who requested access and how we responded. Users can request their own report at any time from the in-app privacy dashboard.
User-Controlled Erasure
One-tap account purge. Crypto-shred every key, mirror every deletion to the cloud, log every step. The right to be forgotten is a system property, not a workflow.
Continuous Compliance
GDPR, UK-GDPR, CCPA, CPRA, VCDPA, LGPD, PIPEDA, DPDP, APPI, NDPA, PIPL — we audit every release against the latest regulatory delta, not the snapshot from launch day.
SERVICE 04
App Store Compliance & Monetization
Our apps integrate a fully audited ecosystem of ad mediation, attribution and payment SDKs — with ATT-first design and granular consent controls.
Ad Mediation Platforms
Our apps typically integrate the following open-screen, rewarded video, interstitial and banner ad platforms via mediation, all routed through a consent-gated SDK stack that respects ATT, GDPR and regional regulation:
AppLovin MAX
Google AdMob
Unity LevelPlay
Meta Audience Network
Pangle (TikTok)
Mintegral
InMobi
Vungle (Liftoff)
ironSource (Unity)
Chartboost
Tapjoy
AdColony
Digital Turbine
Yandex Ads
Amazon Publisher Services
BidMachine
Attribution & Anti-Fraud (MMP)
We integrate the following Mobile Measurement Partners to track installs, attribute conversions and defend against fraudulent installs and click-injection attacks:
AppsFlyer
Adjust
Singular
Kochava
Branch
Tenjin
Airbridge
Attentive
In-App Purchase & Subscription
Payment processing happens entirely through the App Store and Google Play official channels — we never touch your card data. We build subscription ladders, free-trial flows, paywall A/B infrastructure and Server-to-Server receipt validation against the App Store and Google Play APIs.
StoreKit 2 Receipt Validation
JWS-signed receipt verification using Apple's recommended StoreKit 2 + App Store Server API. No more brittle shared-secret flows.
Subscription Ladders
Weekly / monthly / annual tiers with intro offers, win-back flows and 24-hour pre-renewal reminders — fully App Store Guideline 5.1 compliant.
Paywall A/B Framework
Local-first paywall experimentation with Firebase Remote Config or our own zero-knowledge variant system — every variant still consent-gated.
SERVICE 05
The Local Data Layer — engineered, not assumed
We don't rely on third-party BaaS defaults. We design the on-device schema, the encryption envelope and the sync layer — and we own every byte of its behaviour.
Core Data + SQLCipher
Schema versioning, lightweight migrations, AES-256 page-level encryption and full-text search indices — all built around Apple's native stack.
GRDB / SQLite Custom Layer
Where Core Data is overkill, we drop to GRDB or hand-tuned SQLite with our own reactive observation layer — observable queries, typed rows, snapshot diffing.
CloudKit (Opt-In) Bridges
For users who explicitly want cross-device sync, we build CloudKit bridges with user-managed encryption keys — Apple never sees plaintext.
Schema Migration Playbooks
Every schema change goes through a documented migration playbook — backward-compatible, with a tested rollback path and crash-safe recovery.
Performance Telemetry (Local)
Query plans, slow log markers, index hits — all aggregated on-device and surfaced in a developer-mode dashboard, never uploaded.
Backup & Restore
User-initiated encrypted backups to Files, iCloud Drive (private) or any WebDAV endpoint. Restore runs in-app, no server round-trip.
START A PROJECT
Ready to brief us on a discreet, deeply-crafted product?
We onboard a small number of new partners each quarter. Send us your context and we'll respond within two business days.