1TNT

Duo tracks shared child expenses between two parents — school, doctor, clothes, food, activities. Both parents see the same ledger: who paid, how much, what for. Duo splits by your agreed ratio (50/50, 70/30, custom) and shows running balance. No bank linking, no public feed, no judgement. Just a clean ledger between two co-parents. Duo Plus unlocks PDF/CSV export (useful for legal documentation), push notifications, and email reminders. One sub covers both parents.

Trek is a personal travel journal with built-in expense tracking. Tap "I'm here" at each stop, snap a photo, log the cost. At the end of the trip you get a timeline, a map, and the total spend. Travel with a group? Everyone logs their own stops — Trek auto-settles who owes whom (Splitwise-style). Share any trip as a public link. No auto-GPS, no social feed, no itinerary planning. One free trip forever; €19.99/yr unlocks unlimited.