OPEN SOURCE
PostalPlan software license
PostalPlan is licensed under the GNU Affero General Public License version 3.0 (AGPL-3.0), a strong copyleft license designed to keep distributed and network-hosted modifications open.
This page helps explain the licence but is not legal advice and does not replace the complete AGPL-3.0 terms. If this summary and the full licence differ, the full licence controls.
01
What you may do
Run the software for personal, educational or commercial purposes.
Inspect the public source code and understand how the calculator works.
Adapt the application, calculation logic, content or interface.
Redistribute original or modified copies under the applicable terms.
02
Important obligations
- Keep copyright and licence notices with covered copies.
- License covered modified versions under AGPL-3.0.
- Provide the corresponding source code when distributing covered software.
- If users interact with a modified version over a network, offer them access to its corresponding source code as required by the licence.
- State significant changes made to modified versions.
03
Warranty and project independence
The software is provided without warranty under the terms of AGPL-3.0. PostalPlan is an independent planning tool, is not affiliated with India Post and does not issue insurance policies or official quotations.
04
Read the complete licence
Review the authoritative licence text before using, modifying, hosting or redistributing the software.
05
Privacy is a separate promise
An open-source licence defines permissions and obligations for the software. It does not itself guarantee how a deployed website handles visitor data. Read the separate privacy and technology explanation for PostalPlan’s calculator data flow.