---
title: Apps — Jason Irwin
url: https://jasonirwin.ca/apps
description: Three iOS apps by Jason Irwin — Trek Log, Foursight, and 4615. No accounts, no tracking, no subscriptions.
last_modified: 2026-05-28
---

# iOS Apps by Jason Irwin

Three apps sharing a common philosophy: local-first, no accounts, no server-side component, no tracking. All data stays on the user's device or in their own iCloud account.

## Trek Log

Route recording app for iOS. Records GPS tracks while walking, hiking, driving, or travelling. Exports as KML (for GIS tools), animated GIF (for sharing), or MP4 (video playback). Routes saved to user's own iCloud Drive. No account. No tracking. No subscription.

- Page: https://jasonirwin.ca/apps/treklog
- Markdown: https://jasonirwin.ca/apps/treklog.md
- App Store: https://apps.apple.com/app/trek-log/id6762107098

## Foursight

Daily photography challenge app for iOS. Each day delivers four words as prompts (a colour, a texture, a shape, a mood). The user finds and photographs something that matches each word. Photos are saved to the user's Photos library if they choose. Nothing is submitted or scored. No account. No server.

- Page: https://jasonirwin.ca/apps/foursight
- Markdown: https://jasonirwin.ca/apps/foursight.md
- App Store: https://apps.apple.com/app/foursight-photo-challenge/id6765605938

## 4615

Sliding tile word puzzle for iOS. Move tiles around a grid to form words. Quiet, unhurried design. No daily streak, no leaderboard, no account, no data collection. Puzzle state stored locally only.

- Page: https://jasonirwin.ca/apps/4615
- Markdown: https://jasonirwin.ca/apps/4615.md
- App Store: https://apps.apple.com/app/4615/id6771678969

## Privacy

All three apps are covered by a single privacy policy. No personal data is collected by any of them.

- https://jasonirwin.ca/privacy