
Caretta Friends
Protect sea-turtle nests
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Free
About
Caretta Friends is a field app for volunteers who protect loggerhead sea-turtle (Caretta caretta) nests — from the crawl found at dawn to the night the hatchlings reach the sea. Built for Caretta Gazipaşa on Türkiye's protected nesting beaches, and made to work for any sea-turtle volunteer community.
WHAT IT DOES
• Shared map of every nest, beach and trash spot — mark a nest in seconds with an auto-geotagged photo
• AR nest finder — point your phone and see nests pinned where they physically are
• Nest lifecycle — countdown to hatch, a timeline of updates, and an honest temperature-based sex-prediction range
• Excavation record — hatching and emergence success, exported as a PDF for the local authority
• Field guides and facts — what to do when you find a nest, no lights at night, beach rules
• Patrols and coverage — so volunteers don't re-walk a stretch someone already covered
• Your impact — how many hatchlings you helped reach the sea, a streak, badges
Offline-first: capture works with no signal and syncs when you are back online. Works without an account.
Interface in English, Türkçe and Русский.
Open source (MIT): github.com/fortunto2/caretta-friends
Website: carettafriends.com
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What's New in Caretta Friends
1.0.3
August 13, 2026
Excavation counts add up now. Typing a number replaces it instead of being added on to the one already there — entering 3 where the field held 12 used to store 123. Hatchlings dug out alive are counted as part of the ones found in the nest, so a nest can no longer report more hatchlings reaching the sea than it had eggs that hatched. Success rates round the way you'd round them by hand, and the clutch total is shown on screen and in the report.
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