Lep Log

Lep Log

Identify moths & butterflies

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Free

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Details

Released
November 6, 2026
Updated
November 7, 2026

Features

Lep Log screenshot #1 for iPhone
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Lep Log screenshot #7 for iPhone
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About

Lep Log turns every moth at the porch light and butterfly in the garden into a find. IDENTIFY FROM A PHOTO Take a picture or pick one from Photos. Lep Log crops to the critter, suggests the best matches, and checks them against what's actually been recorded near you this month, so the likely species rise to the top. YOUR LIFE LIST Butterflies and moths are tracked against a checklist of North American species, with progress rings for each. Everything else you find — beetles, dragonflies, spiders, frogs, turtles, lizards — is logged and sorted by group. EVERY SIGHTING, WHERE AND WHEN Each sighting keeps your photo, the date and the place. Browse them in your journal or on a map of everywhere you've found something. STATS Watch your life list grow, see your days out on a calendar, find out whether you're a night owl on the 24-hour clock, and see which families you've started and where you find the most. FLYING NEAR YOU See which butterflies and moths are being seen around you this month, and which ones you still need. FRIENDS AND LEADERBOARD Share your friend code, follow each other, see each other's logs, send sightings back and forth in chat, and see who's furthest through the checklist. NO ACCOUNT NEEDED Your log is just a private code — no email, no sign-up. Open it on another phone or on the web, add a password if you like, and delete it any time. Optional: post your sightings to iNaturalist.
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What's New in Lep Log

1.0.4

November 7, 2026

- Fixes a freeze when opening a friend's map. - Friends' maps now open as a map card in their profile; tap to expand it full screen. - New privacy setting: choose how precisely friends see where your sightings were made. Town or county is the default; exact spots are optional. - Location data inside photos is now removed when they're uploaded.

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