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MicroCalc is a spreadsheet application for mobile phones with an impressive feature set. It supports formulas and has functions such as SUM, POW, SIN, TAN, COS and the logic operators IF, AND and OR and constants PI(). and E(). You can insert and delete rows and columns and save sheets for later recall. Use the green "Call" key as the "OK" button.

Type: Open Source Freeware
Vendor: WAP Industrial - Product Page and Help
Data Connection Required: No
Supported iDEN phones: All

Alternate links for side loading and non-iDEN devices: ZIP JAD JAR