Products
Software that respects the person using it.
We build small, focused applications for Apple platforms. Analysis stays on the device where possible, accounts are not required, and limitations are written down rather than hidden.
Flagship · Privacy engineering
Perimeter: Privacy Scanner
An iPhone app that surfaces potentially unwanted trackers, smart glasses and other privacy-relevant wireless devices — and is explicit about what wireless detection cannot tell you.
Perimeter analyzes supported nearby wireless signals on the device and looks at observations over time, rather than reacting to a single sighting. Tracker-like activity becomes worth reviewing when it persists after you move or recurs across locations.
Findings are presented as candidate matches with time and approximate location context, so a person can make an informed decision rather than receive an alarm. The app reports evidence and context — not identity, ownership, recording status or intent.
- Platform
- iPhone
- Analysis
- On-device
- Account
- Not required
- Tracking SDKs
- None in V1




Screenshots from Perimeter's published product materials, showing example data.
Contextual detection
Patterns over time and across places, not one-off sightings. Tracker-like signals that follow you are separated from ordinary background devices.
On-device analysis
Core signal analysis runs on the iPhone. No account is required, and observations stay on the device until you delete them.
Guided checks
Room or place and vehicle checks combine a Bluetooth and local-network check with optional lens and photo tools and a guided physical inspection.
Transparent limitations
Matches are labeled as candidates, with confidence stated. The app documents what it can miss instead of implying certainty.
Language learning · macOS
FluentOS for Mac
A native macOS menu bar utility for contextual translation. Point at a word, press a hotkey, and every lookup becomes a flashcard.
FluentOS translates the word under the cursor, or a selected passage, in a small overlay — inside most apps, using macOS accessibility with on-device text recognition as a fallback.
Translation runs on-device through Apple's Translation framework, and the flashcard deck is a local file. No account is required.
Contextual translation
One hotkey over a word or selection, in most apps. Direction is detected automatically.
Automatic flashcards
Each lookup becomes a card with the word, its translation and when you met it, with optional review reminders and Anki or CSV export.
Local-first
On-device translation after a one-time language model download; the review deck stays on your Mac.
- Platform
- macOS 15 or later
- Translation
- On-device
- Languages
- Nine target languages
- Distribution
- Direct, notarized
Entertainment · iPhone
Don't Drop Me Bro
A deliberately silly iOS app: drop your phone and it screams, with the drama scaled to the severity of the fall.
Impact detection scores each drop, picks a matching scream, and records it in a personal Hall of Shame. You can record your own scream, too.
A lighthearted project — and a small, practical exercise in motion sensing and on-device event detection.

Impact detection
Each drop is scored by severity and answered with a matching sound.
Hall of Shame
A ranked history of your drops, with a drop map.
Data not collected
The App Store privacy label states that no data is collected.
- Platform
- iOS
- Price
- Free, in-app purchases
- Category
- Entertainment
Contact
Questions about a product?
For product support, privacy questions or press inquiries, email us. Each product's website or App Store listing links to its privacy policy.
Security reports: security@classymethods.com
