Terms

Copper is free to use. These terms are short on purpose.

Using Copper

You can use Copper at copper.ashishnitinpatil.com for free, for personal or any other lawful purpose. Your data is yours: it lives on your devices and in your own Google Drive, and you can export or delete it at any time.

You’re responsible for your own book — keeping backups, and deciding who you share it with. Copper is a record-keeping tool, not financial, tax or legal advice.

The software licence

Copper’s software is released under the MIT License. You may use, copy, change, share and even sell it, as long as you keep the copyright notice and licence text below with every copy or substantial part you pass on.

MIT License

Copyright (c) 2026 Ashish Patil

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

No warranty

Copper is provided “as is”, without warranty of any kind, as the licence above says. To the extent the law allows, Ashish Patil isn’t liable for lost data, wrong figures or any other loss from using it. The hosted app may change, pause or stop at any time — your data stays with you either way.

Contact

Questions? Email us. See also the privacy policy.