MIT App Inventor Charts Tutorial - Build an Expense App with Pie Chart (Beginner Tutorial)

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Hello friends,

Learn how to build a simple Expense Tracker in MIT App Inventor and visualize category totals using the built-in Chart (Pie Chart). This beginner friendly tutorial shows UI setup, saving to TinyDB, and updating the Pie Chart for categories like Food, Travel, Bills and Other.

00:00 Intro
00:25 Demo
00:59 UI setup ā€” Amount box, Category picker, Chart
05:10 Saving an expense to TinyDB (amount, category,)
09:35 Loading expense items
10:31 Building the Pie Chart

If you want Part 2 (add full dates, automatic month picker, and a ListView showing monthly entries + month-specific pie charts) ā€” comment *ā€œPart 2ā€* below and Iā€™ll make it next.

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