cDox: No-AI Docs and Sheets
Private notes and spreadsheets
About
A private and simple platform for writing notes and creating spreadsheets. It offers a clean editor, real spreadsheet functionality with formulas, and real-time collaboration features. Your data is kept private and is never used for AI training.
What's New in cDox
1.0.18
October 28, 2026
Start a page or sheet from a template: tap + and choose From template. Waiting feels calmer too: buttons say what they're doing, and nothing flashes while things load.
MoreSubscriptions & In-App Purchases
cDox Pro (Monthly)
More storage, unlimited public links and image uploads.
Developer apps
FAQ
What is cDox?
cDox is a private and simple app for writing notes and creating spreadsheets. It focuses on a clean user experience, real-time collaboration, and ensuring user data is never used for AI training.
Does cDox have ads?
No, cDox is completely ad-free. The app is developed by an independent company with no investors, prioritizing a clean and uninterrupted user experience.
How does cDox handle privacy?
cDox is designed with privacy at its core. Your data is never used to train AI or machine learning models, never sold, and stored on servers in Montreal under Canadian law.
What are the limitations of the free version of cDox?
The free version of cDox allows for up to 150 pages and sheets. Users can upgrade to cDox Pro for unlimited pages and sheets, as well as image uploads and Pro fonts.
Can I use cDox on multiple devices?
Yes, cDox is available on iPhone, iPad, Android, Mac, Windows, and the web at cdox.studio. A free account enables backup and syncing across all your devices.
What file formats can cDox import and export?
On the web, cDox allows you to import Word, Excel, and CSV files, and export them back in those formats. It also supports Markdown for writing.
How often is cDox updated?
The latest version of cDox is 1.0.18, last updated on October 28, 2026. Updates typically focus on improving features and reliability.
What collaboration features does cDox offer?
You can invite up to 25 people to collaborate on pages, sheets, or entire folders. Collaborators can edit simultaneously and leave comments, with options to share direct links to documents.
