SessionTrail: Photo & GPS Log

SessionTrail — the photographer's session journal.

Plan a shoot. Record it on the trail. Reflect on what worked. SessionTrail is a journal-first photography app where the session — not the individual frame — is the atom.

PLAN WITH INTENT Title, location, planned window, scoped tags. Auto-geocoded city + country. MapKit picker for precise coordinates. Pre-shoot checklist with reusable templates. Gear kit with snapshot semantics — your loadout survives renames in your gear catalog. Reference images via PHPicker. NOAA-based conditions snapshot for sunrise, sunset, golden / blue / civil / nautical / astronomical twilight, moon phase + rise / set, and Milky Way galactic-core visibility — all on-device, no network needed.

SHOOT WITH THE FIELD LOG OPEN Background GPX recording. Photo log per frame with subject, lens, filter, frame number, and stabilization setup (handheld, tripod, monopod, gimbal, slider, drone). Voice memos with titles. Quick reference snaps via the iPhone camera. Pause / resume creates separate segments in the GPX file.

REFLECT AND SHIP Editable session times. Map polyline preview of the recorded track. Five reflection prompts (what worked, what didn't, lessons, conditions vs. expectation, free notes). 0–5 star rating. Outcomes — published, printed, submitted, archived, reshoot needed. Share the GPX directly to PhotoMetaPro on Mac.

SESSIONTRAIL PRO — ONE-TIME UNLOCK For working photographers who need the next layer of detail. Pay once, owns the app forever, no subscription:

• Multi-day sessions with the per-day chip filter on the Shoot tab
• Trips — group "Iceland 2026" or "Provence Lavender Week" under one window, one currency, with aggregated costs
• Per-session and per-trip cost tracking with live variance, 50+ curated currencies plus any ISO 4217 code
• PDF reports — one-page session report and multi-page trip report with title, dates, location, plan, conditions, gear, reflection, rating, outcomes, costs, photo log and GPX stats — ready to file, print, or attach to a competition entry
• Multiple GPX tracks per session — stop / start during a session and morning hike + evening walk become two separate, shareable .gpx files
• Sparse + Dense GPS modes — Sparse (5–30 min, GPS duty-cycled for multi-hour landscape and astro shoots) and Dense (1–10 s sampling for wildlife and events). Standard (15–60 s) stays free.
• GearGrove kit sync — apply gear loadouts managed in GearGrove with one tap
• Recap PNG exports for sharing a polished session or trip card

BUILT FOR NIGHT PHOTOGRAPHERS Astro appearance mode (red on black) preserves your dark adaptation under the Milky Way. Background GPX recording survives screen-off through a multi-hour star-trail session. NOAA-based galactic-core visibility tells you when the core is above the horizon during astronomical night.

PRIVACY BY DESIGN Metadata syncs via your private iCloud database. Heavy artifacts — GPX file, voice memos, reference snaps, PDF reports — stay on the recording device. Nothing leaves your phone except through the standard Share sheet you control.

Full localization for English and German. Made with care in Switzerland.