Privacy Policy
Last updated: November 2026
CalcHub is operated by LM Technologies AS, org. no. 938 021 325, Norway, which is the controller of the personal data described here. Contact: support@calchub.no.
What we collect, why, and for how long
| Data | Purpose | Legal basis | Kept |
|---|---|---|---|
| Email, username, first and last name, password hash | Your account and login | Contract (Art. 6(1)(b)) | Until you delete your account |
| Company, job title, phone (optional) | Support | Contract (Art. 6(1)(b)) | Until you remove them or delete your account |
| Unit system, time zone, report header choices | Display preferences | Contract (Art. 6(1)(b)) | Until you delete your account |
| Time you accepted the terms and this policy | Record of acceptance | Legal obligation and legitimate interest (Art. 6(1)(c) and (f)) | As long as needed to document it, also after account deletion |
| Marketing email opt-in, off unless you turn it on | Product news by email | Consent (Art. 6(1)(a)) | Until you turn it off or delete your account |
| Saved assessments, with your titles and notes | The calculations you run and keep | Contract (Art. 6(1)(b)) | Until you delete them or your account |
| Purchases: plan, amount, dates, Stripe customer and payment ids, and the billing address, company name and VAT or org. number you enter at checkout | Payment, invoices and bookkeeping | Contract and legal obligation (Art. 6(1)(b) and (c)) | 5 years after the end of the financial year, as the Norwegian Bookkeeping Act requires |
| Failed login attempts: email, time and IP address | Locking an account after five failed attempts | Legitimate interest: account security (Art. 6(1)(f)) | Until your next successful login |
| Messages sent through the contact form: name, email, topic, message and a one-way hash of your IP address | Answering you, and limiting each sender to five messages an hour | Legitimate interest: answering questions and bug reports (Art. 6(1)(f)) | 2 years |
| Error reports: the page, the time and the error, without your name, email or inputs | Finding and fixing faults | Legitimate interest: a working service (Art. 6(1)(f)) | 90 days |
| Page views: the page, the referring site, campaign tags in the link, device type and country. No IP address and no cookie | Counting visits | Legitimate interest: knowing which pages are used (Art. 6(1)(f)) | 365 days |
| Campaign of your first visit: the campaign tags in the link, the referring site and the first page, attached to your account when you sign up | Knowing which campaigns bring customers | Consent, given in the cookie banner (Art. 6(1)(a)) | Until you choose "Necessary only" in the cookie settings or delete your account |
| Google Ads click id, if you arrived from a Google ad | Reporting to Google Ads that the click led to a signup or a purchase | Consent, given in the cookie banner (Art. 6(1)(a)) | 90 days from the click |
Assessment inputs (wall thickness, pressure, material grade and similar) describe equipment, not people. Do not enter personal data in titles or notes.
Cookies
| Cookie | Purpose | Kept | Needs consent |
|---|---|---|---|
sessionid | Keeps you logged in. With your consent it also holds the campaign of your first visit until you sign up | 2 weeks | No |
csrftoken | Protects forms against cross-site request forgery | 1 year | No |
cookie_consent | Remembers your cookie choice | 6 months | No |
CalcHub sets no advertising or third-party cookies and loads no Google, LinkedIn or other tracking script. Measurement means only the campaign data and click id in the table above, kept on our own servers. You can change your choice at any time: cookie settings.
Who processes your data for us
| Processor | What for | Where |
|---|---|---|
| Render Services, Inc. | Hosting and database | Frankfurt, Germany |
| Stripe Payments Europe, Ltd. | Payments and invoices | Ireland, with transfers to the USA |
| Functional Software, Inc. (Sentry) | Error reports | USA |
| Domeneshop AS | Sending email from calchub.no | Norway |
| Google Ireland Limited | Receives the click id and the time of a signup or purchase, only with your consent and only if you came from a Google ad | Ireland, with transfers to the USA |
Transfers to the USA rely on the EU-US Data Privacy Framework where the recipient is certified, and otherwise on the European Commission's Standard Contractual Clauses.
Your rights
You can ask for access to your data, a copy in a machine-readable format, correction, deletion, restriction, or object to processing based on legitimate interest. Where we rely on consent, you can withdraw it at any time without affecting what was done before. Most of your data can be viewed and changed on your profile page. For anything else, or to delete your account, write to support@calchub.no. We answer within one month.
You can complain to the Norwegian Data Protection Authority, Datatilsynet (datatilsynet.no).
Contact
Questions about this policy: support@calchub.no.