Construction Log Offline

Construction Log Offline is a simple Android app for keeping a construction log without a server, without registration and without an internet connection.

It is designed for contractors, small construction companies, site supervisors, field teams and service technicians who need to record the reality of the day, collect signatures and generate a professional PDF document.

This app is not an ERP system.
It is a practical field tool.

What the app can do
manage construction logs for multiple projects
create daily entries quickly and clearly
add workers, shifts and breaks
record weather and temperature
attach photos
collect signatures directly on the phone
lock records after signing to protect them from edits
export one day, a selected period or the full log to PDF
share finished PDF files directly from the phone
work fully offline
Why it is practical
no server
no account
no sync required
data stays on the device
fast input directly on site
professional PDF output for handover or archive
PDF export

PDF export is designed for real use:

clear structure
signatures
photos
change history
document identification
professional appearance
Support development

The basic version is fully usable for everyday work.
A one-time development support unlocks a professional document without basic-version marking and allows adding a company logo and stamp.

Suitable for
contractors
construction companies
site managers
supervisors
installation and service teams

Construction Log Offline helps you record the day, sign it and generate a ready-to-use document without unnecessary admin.