Keep a record of every animal you see in Borneo. All 4,261 species in the guide — mammals, birds, amphibians, lizards, snakes, turtles & crocs, plants and insects — are here as one tick-list: tap a species when you spot it, and add the location and dates to pin the list to a particular trip. Everything saves on your own device, with no account and nothing to sign up for, and the page keeps working offline once you've opened it — useful in a reserve with no signal. At the end of a trip, download it as a PDF or open it as an email draft to send on.
Email opens a pre-filled draft in your own mail app, with the To field left empty — add your own address (or whoever you're sending it to), and attach the downloaded PDF before sending.
Field checklist by wildlifeofborneo.com
