To use reports, tap the gear button, then Reporting. Select a date range by tapping the header to choose the type of range, then use the scroll wheel to pick the exact range.

For Pro users and Legacy users:
Clients and projects that have time recorded for the selected range will appear below the scroll wheel. Tap on one of those to see its on-screen report. If your report has more than one week, the rows in the report  can be swiped horizontally to see more dates.

To send a PDF, CSV, or web report, select a time range as described above, then tap the share button to the left of the client or project you choose (or "All time" for all clients and projects). Then follow the prompts to send the report you want.

Pro users and Legacy users only will be able to makes selections for shared reports down to the project level.

For free users (after free Pro trial expires):
To send a PDF or CSV report, select a time range as described above, then tap the share button and follow the prompts to send a detailed report with notes.