Privacy Policy
Last updated: October 26, 2026
In short: DevCalc collects nothing. There is no account, no advertising, no analytics and no network code at all. It never connects to the internet, so no information about you can leave your device, neither to us nor to anyone else.
No data is collected
DevCalc collects no personal data whatsoever. There is no sign-up, no identifier, no advertising SDK and no analytics SDK. It asks for no permission: not your contacts, not your location, not your camera, not your microphone, not your photos. It does not display the App Tracking Transparency prompt, because there is nothing to track.
Your calculations stay on your device
So that you find your work where you left it, DevCalc saves a few things in its own private storage on the device:
- the active tab, display format and number of decimals;
- your settings: appearance, separators, automatic reset delay, word size, haptic feedback and key clicks;
- whether you have already seen the introduction;
- the calculation in progress and the contents of the ribbon.
These items never leave the device. They live in the application's private container, which iOS isolates from other applications, and they are permanently deleted when you delete DevCalc. Inside the application, the trash button clears the ribbon at any time.
No iCloud, no server, no synchronisation
DevCalc uses no iCloud service, no CloudKit database and no server of ours. There is nothing to synchronise, and therefore no copy of your data anywhere but on your device.
When you share the ribbon
The DevCalc menu can hand the text of your ribbon to the standard iOS share sheet, so you can send it to Mail, Messages, Files or another application. That transfer happens only when you ask for it, you choose the destination, and what happens next is governed by the privacy policy of the application you picked. DevCalc neither reads nor retains the result.
What Apple sees
Downloads, purchases, crash reports and the usage statistics offered by the App Store and TestFlight are handled by Apple, not by us. We only ever see them aggregated and anonymous, and only if you have agreed to share them with developers in your iOS settings. Apple's practices are described in the Apple Privacy Policy.
This website
devcalc.app is a static site. It sets no advertising cookie and embeds no third-party tracker. Like any web server, ours and our network provider (Cloudflare) record standard technical logs (IP address, date, page requested), kept briefly for security and troubleshooting. We do not use them to identify visitors. Any audience measurement in place is self-hosted, cookie-free, and records no personal data.
Children
DevCalc is suitable for all ages. As no data is collected, no specific processing of children's data takes place.
Your rights
The DevCalc application itself holds no personal data about you. If you contact support through this website, you may request access, correction or deletion of that correspondence as described below.
Changes to this policy
Should DevCalc ever gain a feature that changes any of the above, this page will be updated before that feature ships, and the date at the top will change accordingly.
Contact
A question about this policy, or about privacy in DevCalc? Contact support
When you contact support
The support form is optional and can be used without an email address. If you use it, we store your message, category, uploaded images, source website and language, date and time, and your email address if you would like a reply. This information is used to handle and follow up your request. It is stored on our server in France for up to 365 days after the last activity, unless deleted earlier. Backup copies may retain deleted information for up to 30 additional days.
The IP address associated with the request is erased after 30 days. This is separate from website technical log retention. A security cookie specific to the form expires after one hour. Cloudflare provides network protection and the Turnstile spam check. If you exchange emails, Resend processes your address and email content to send and receive them. Pushover receives only the reference, application, category and a private link to notify the developer. Images uploaded through the form stay on our server; metadata is removed and GIFs become still images.
Support information is not used for advertising. You can request access, correction or deletion of your exchanges using the form and quoting their reference. Avoid sending sensitive information or information about other people.