Since the official Nokia Store is no longer active, you can use these community-driven archives:
: A file manager that allows you to manage files and even send/receive items via Bluetooth more efficiently. Nokia C3-01 - Википедия skachat programmy dlia nokia s3 01
: The best browser for S40, which compresses data and works much better than the stock browser on modern websites. Since the official Nokia Store is no longer
: A popular repository specifically for S40 and S60 Java games and apps. You can filter by screen resolution ( 240x320 for the C3-01). skachat programmy dlia nokia s3 01
: Offers a wide selection of free S40 apps, including browsers, messengers, and utilities.