Nullpark
A small iOS studio building privacy-first apps that work on-device, offline by default.
Notes from the studio (design choices, gotchas, and what we learn shipping) live on the blog.
What we're building
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Boundary
iOS, in development
On-device redaction of PII, secrets, and metadata across the three moments most leaks happen: AI paste (ChatGPT / Claude / Gemini), screenshot share (API keys, customer IDs, addresses), and photo upload (GPS, camera fingerprint, edit history).
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Authenticator
iOS, in development
A TOTP authenticator that flags 2FA secrets tied to breached accounts (HIBP k-anonymity), reminds you to rotate on a schedule you set, and exports an AES-GCM-encrypted backup that works with any cloud you already use. No proprietary vault.
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AppCleaner
iOS, in development
A digital-hygiene tool that surfaces stale apps still holding sensitive permissions, paid App Store subscriptions tied to apps you no longer open, and duplicate or low-quality photos. All on-device.
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OnDeviceNotes
iOS, in development
A privacy-first AI note taker that records meetings and produces transcripts (WhisperKit) and summaries entirely on-device. Audio never leaves your phone.