| 01 Just start |
| 01-01 Button explanation (Free version) |
| 01-02 Button explanation (Multifunctional) |
| 01-03 Free version and Multifunctional |
| 01-04 Layout change left/right |
| 01-05 Numeric input |
| 01-06 Text input |
| 01-07 Insert line |
| 01-08 Delete line |
| 01-09 Copy & Paste |
| 01-10 C (Clear) |
| 01-11 AC (All clear) |
| 01-12 Switch list |
| 02 Furthermore |
| 02-01 M+ (Memory plus) |
| 02-02 M− (Memory minus) |
| 02-03 MC (Memory clear) |
| 02-04 Undo |
| 02-05 Redo |
| 02-06 Reverse sign |
| 03 More |
| 03-01 Export |
| 03-02 % |
| 03-03 Delete single digit |
| 04 Even more |
| 04-01 Change background color |
| 04-02 Rounding |
| 04-03 Number buttons type |
| 04-04 Buttons layout |
| 04-05 Numeric font |
| 04-06 Line numbers |
| 05 In-app purchases |
| 05-01 Multifunctional |