Open Source Kotlin Personal Finance Software

GreenStash is an open-source Android savings planner designed to help users establish consistent saving habits and achieve financial goals. It allows users to create individual savings targets with personalized images and deadlines. The application calculates how much money must be saved daily, weekly, or monthly to meet each target. Deposits and withdrawals are recorded in a detailed transaction history. Configurable reminders encourage regular contributions based on goal priority. GreenStash supports more than 100 local currency symbols for flexible financial tracking. Its Material Design 3 interface includes Material You theming on compatible devices. Biometric authentication protects financial information, while fully offline operation keeps savings data on the device without requiring internet access.

Recurring Expense Tracker helps Android users organize subscriptions, bills, and other regularly scheduled financial commitments. It supports daily, weekly, monthly, and yearly payment cycles with customizable starting dates. Expenses are automatically converted into monthly equivalents for easier comparison. Users can organize payments with tags, colors, and list or grid views. More than 170 currencies are supported, with exchange rates converting expenses into a preferred currency. Upcoming payment timelines and configurable reminders help prevent missed bills. A home screen widget displays approaching expenses. Financial data stays locally stored, with biometric protection and backup and restoration options.