WeSplit.it is described as 'Sharing Bills & Expenses made simple. Split household bills, daily expenses and personal IOUs with friends and flatmates. Ideal for rent, groceries, utilities, travel, bbqs, dinner, drinks, sport clubs and more'. There are more than 10 alternatives to WeSplit.it for a variety of platforms, including Android, iPhone, Online / Web-based, Android Tablet and iPad. The best alternative is Splitwise, which is free. Other great apps like WeSplit.it are ihatemoney (Free, Open Source), SplittyPie (Free, Open Source), MoneyBuster (Free, Open Source) and Kittysplit (Free).
Moneybuster is a shared budget manager able to synchronize with IHateMoney and Nextcloud Cospend. What's different from other shared budget managers? You can keep your project local or make it synchronize with IHateMoney and Nextcloud Cospend projects.
Memodude keeps track of who you lent to, reduces your receivables and gets rid of bad payers. A unique algorithm cancels out debts and keeps your preferences into account when doing so: which connections you prefer owing you and of which you are doubtful that they will repay you.
Split bills over a wide spectrum, ranging from a group of 2 to 100s of people. You may pick the options split by amount, split by percentage, and split by share whichever is appropriate to split bills and track expenses.