Anglers Edge

Support

Offline lake intelligence for Ontario anglers · Analysis only — not for navigation

Contact

Questions, bug reports, lake requests, or data corrections:

Include your iPhone model and iOS version if you're reporting a problem — it speeds things up.

Common questions

How do lake packs work?

The app ships with lakes built in and works fully offline. Extra lakes are free, optional downloads: open Settings → Lake packs, tap a lake, and it downloads once (Wi-Fi recommended). After that it lives on your phone and works with no signal, forever.

A pack download failed — what do I do?

Check you're online; packs download from static hosting and need a connection only while downloading.
Tap the lake again — the download restarts cleanly.
If it keeps failing, email us the lake name and we'll check the pack.

Can I import my own sonar logs?

Yes — Settings → Sonar logs accepts Lowrance .sl2/.sl3 and CSV exports. Your logs are processed on-device only and never leave your phone. Re-surveying the same water raises the confidence layer for your own map.

Where does the lake data come from?

Every lake names its sources on its lake card. Bathymetry is built from Ontario's published bathymetric surveys (Land Information Ontario) — measured sounding and contour surveys with their survey year shown. Fish-community information comes from the province's Broad-scale Monitoring netting program where coverage exists. Anything inferred by the model (for example substrate) is labeled as inferred. If data is old, the app says so.

My lake isn't covered — can I request it?

Yes. Use the lake request in search, or email us. Coverage grows in batches; surveyed lakes with published data come first.

Is it a navigation app?

No. Anglers Edge is an analysis instrument. Depths are charted values, not real-time, and the app carries a persistent "Analysis only — not for navigation" notice. Always carry official charts and required safety gear.

Data sources & licenses

Anglers Edge is built entirely from public, open-licensed data:

Bathymetric surveys, waterbodies, geographic names and Broad-scale Monitoring netting data — Province of Ontario (Land Information Ontario). Contains information licensed under the Open Government Licence – Ontario.
Quebec lake bathymetry — Géobase des bathymétries de lac du Québec (GBLQ), ministère de l'Environnement, de la Lutte contre les changements climatiques, de la Faune et des Parcs (MELCCFP), published on Données Québec under a Creative Commons Attribution 4.0 (CC-BY-4.0) licence.
Water levels — Water Survey of Canada, Environment and Climate Change Canada (open data).
Weather and degree-day climate series — Open-Meteo historical archive (CC-BY-4.0).
Weed-fringe measurements — Sentinel-2 imagery, European Union Copernicus programme (free and open access).
Shoreline access points — published municipal open data.

Each lake card in the app names its own survey source, year and data quality. Charted depths are analysis values, not real-time — always carry official charts.

What happens to my waypoints, catches and tracks?

They live only on your device. No accounts, no analytics, no ads, no tracking. You can export them yourself (GPX/CSV) whenever you choose. Details are in the privacy policy.