Tell it where you're headed
A short onboarding builds your plan: current stats, goal weight (lose, maintain or gain, your call), activity level, and how much of your exercise you want to earn back as food. Caterpillar computes a daily calorie and macro target using the Mifflin‑St Jeor equation, with healthy floors so a crash diet is never on the menu.
Log the way that suits the moment
Cooked a meal? Snap Your Plate photographs the plate, and on supported iPhones LiDAR measures real portion volume rather than guessing. Packaged food? The scanner reads the nutrition panel itself, so macros come off the label rather than from memory. Groceries? Barcode scan, tuned for Australian shelves. Eating out? Menu Scan reads the menu and lets you portion the dish. And search understands Aussie shorthand: "parma", "maccas", "Weet‑Bix" all just work.
Watch the garden respond
Your caterpillar eats when you log, drinks when you hydrate, and lengthens as the day fills. The dew drop fills with every drink, each one coloured by what it actually was and counted at its real hydration value. Coffee counts; a neat spirit takes water back out. Macros, steps, active energy and streaks all live on one Garden screen.
Earn your gallery
Consistency unlocks puzzle pieces, and puzzle pieces reveal collectible butterfly artwork across Wood, Silver, Gold and Diamond tiers, plus secret achievements you'll only find by living well. Streak pressure that feels like play rather than guilt.
Keep it forever
Sign in with Apple or Google and everything (history, streaks, gallery, favourites, settings) is backed up to your account. New phone or a reinstall, one sign-in brings it all home. Export the lot to CSV whenever you like. Change your mind? Delete your account from inside the app and it's gone within 48 hours.