PlanMaker

Collabora Office

Productivity

eM Client

Secure e-mail app

ONLYOFFICE Documents

A complete mobile office suite

Nextcloud Notes

Productivity

AO Office

OpenOffice for Mobile

Sheetlet - Calculating Sheets

Spreadsheet with data scanner

Cryptomator: Protect Privacy

Open Source Cloud Encryption

Zoho Sheet—Spreadsheet on iPad

Create Spreadsheets Online

The Spreadsheet App. - Sheets

Excel, CSV & PDF export

Week Plan Calendar

Keep track of events & todos!