GemBudget is described as 'tool to take your budget under control. You can easily track your balances, add new transactions and control your expenses' and is a personal finance tool in the business & commerce category. There are more than 25 alternatives to GemBudget, not only websites but also apps for a variety of platforms, including Android, iPhone, Android Tablet and Windows. The best alternative is GnuCash, which is both free and Open Source. Other great sites and apps similar to GemBudget are HomeBank, You Need A Budget, Mint.com and MoneyWallet.
MoneyWallet is an Android application that let you track your expenses. You can organize your data using custom categories, events, places and people tags. The best alternative to others apps, free and open source.
With Debitum you can track all kinds of IOUs, be it money or lent items. This way you will never more forget if your friend already gave you back that book or dispute about how much you owe your colleague for coffee.