Klasor
Klasor › Legal

Terms of use (EULA)

What you can do with Klasor, what we guarantee, and what stays your responsibility.

Effective from: 1 November 2026. This document is the contract between ENGINEERIO S.R.L., tax ID RO 50410082 (“we”), and you, the user (“you”), for the Klasor application (“Klasor”). By installing or activating the application you accept these terms.

1. The license

We grant you a personal, limited and non-transferable license to use Klasor on a single Mac, for your own work or that of the company you represent. Each Mac has its own license key: if you bought a plan for several Macs (2 or 5), you receive one key for each. The license cannot be shared, sublicensed or resold, is yours only while it is valid (for plans with a term) and gives you no right to the source code.

2. The free trial

On first launch, the application asks you to choose between the free trial and a license key. The trial starts only when you choose it and lasts 7 days or 1,000 messages, whichever limit is reached first, on each Mac. No bank card is required. Distinct messages that Klasor labels or exports are counted (a message labelled and exported counts once). After the trial, the application asks for a license key; your messages, categories and exports stay untouched. Your own archive stays yours: without an active license you can still search, read and restore the messages you exported with Klasor; only new labeling, exporting and freeing space are paused.

3. Activation and verification

  • The license key is personal and tied to a single Mac: do not publish it or pass it on. If you change Macs, deactivate the old one from the application and activate the key on the new one. Each key can be moved to a different Mac once. After that the key stays with the Mac it was last activated on; if that Mac breaks or is sold, write to support@klasor.app and we will look at your case. Reinstalling Klasor on the same Mac never counts as a move. Keys cannot be passed between people or Macs repeatedly.
  • The application periodically checks the license with our server and can work for a limited time without an internet connection; after that it asks for a new check. What data is sent: Privacy policy.

4. What you may not do

  • copy, sell, rent, share or redistribute the application or the license key;
  • use a key on a Mac other than the one it is activated on;
  • circumvent or disable the license check or the trial limits (for example by modifying the application’s files or the trial counter, or by imitating our server);
  • decompile or modify the application, beyond what the law expressly allows (for example for interoperability).

5. Your data

  • Your messages stay on your Mac and in Outlook. Klasor does not send them anywhere; the license server never sees them.
  • Klasor does not send messages. It adds labels (Outlook categories) and saves .eml copies where you choose. Removing messages from Outlook is optional, off by default, limited to messages whose exported copy is verified, and always confirmed by you (see section 12).
  • You choose where exports are saved and you are responsible for the security of that location (for example an iCloud account or a SharePoint folder visible to others).
  • Keep your own backups. A Klasor-verified export is an extra copy, not a replacement for your archiving policy.

6. Compatibility

Klasor controls classic Outlook for Mac and depends on it. Microsoft may change or stop features Klasor relies on (for example classic Outlook's connection to Exchange Online, withdrawn from October 2026). We cannot guarantee operation in those cases; the free trial exists so you can check compatibility before buying.

7. Prices, payment, term

  • Prices are in EUR (euro), VAT included, as shown on the site on the order date.
  • The annual license is valid for 12 months from activation. On expiry, the application asks for a new or extended key; it does not renew by itself and no amount is charged without your agreement.
  • The monthly plan is valid for one month from activation; like the annual plan, it does not renew by itself.
  • The billing details and e-mail address you give when ordering must be correct; keep them up to date.

8. Refund

You are entitled to a full refund within 14 days of payment. Conditions: Refund policy.

9. Updates

We release new versions of the application; the application tells you when one exists (it does not update by itself). We may withdraw a version with serious problems, with a clear message in the application.

10. Suspension and revocation

If we have reasonable grounds to believe a license is being used in breach of these terms (for example a published key, or use on more Macs than allowed), we send you an e-mail notice describing the suspicion. You have 3 calendar days from sending it to respond and explain.

If we receive no reply within that time, we may revoke the license, and the amount paid is no longer refundable. If you write to us later, within 30 days of the revocation, and show that you did not breach the terms, we reinstate your license or refund the amount for the remaining period, at your choice.

If you did reply, we review your explanation and tell you our decision in writing. If we revoke a license through no fault of yours, we refund the amount for the remaining period. Consumers’ mandatory rights are unaffected.

11. Warranty and liability

The application is delivered with due care, without a guarantee that it works uninterrupted or error-free. To the extent permitted by law, our liability is limited to the price you paid in the last 12 months and does not cover indirect losses (for example lost profit or data). Liability for intent or gross negligence is not limited, and consumers' mandatory rights are unaffected.

12. Freeing space in Outlook (optional)

You accept these terms when you turn on freeing space in the app. This section applies only to the optional “Free space” feature, which moves messages out of Outlook. Labeling and exporting never delete or move anything.

  • Optional and off by default. Freeing space stays off until you turn it on in the app, with a tick box and a confirmation. You can turn it off at any time.
  • You choose and you confirm. You choose the export, you review the result, and you confirm each run before any message is moved. You must check that you have chosen the right export: Klasor can only compare your messages with the export you pick.
  • What Klasor moves. Klasor moves only messages whose exported copy it has checked again against the export’s manifest (size and SHA-256) just before the move. By default it keeps unread messages, flagged messages and messages from the last 30 days; you can change this in Advanced or Pro mode. Messages are moved to Deleted Items in Outlook. Klasor does not empty Deleted Items as a whole.
  • Your backup and your export. After messages are moved, the verified export may be the only copy of them that you control. You are responsible for keeping your own backup of the export, including a copy in a second location, and for the security of the place where the export is stored. Klasor does not back up your export and cannot recover an export that is lost, damaged or deleted.
  • Accounts and servers. Freeing space is designed for IMAP accounts added to classic Outlook. We tested it only with Gmail added as IMAP and with an IMAP account on a private mail server (Postfix 2.10.1), with Outlook 16.114 for Mac; the other account types are listed in Which accounts work, and how to add them. We do not guarantee how Klasor behaves with accounts, mail servers or Outlook versions that we have not tested. Try a small export first.
  • After the move. Once messages are in Deleted Items, the rules of your mail provider or server (retention, trash, automatic deletion, storage quotas) apply. Klasor does not control them, and space on the server is freed only when Deleted Items is emptied.
  • “Free the space now”. This optional step has its own confirmation. It deletes for good, from Deleted Items, only the copies that Klasor has just moved. For those copies in Outlook it is final and cannot be undone in Outlook; the verified copies stay in your export.
  • Restoring. You can restore messages from your export. A restored message returns to its original folder with its read status, flag and labels, but Outlook shows the restore date as the received date, and Klasor cannot recreate the original received date. The original sent date and headers are kept, and Outlook assigns a new Message-ID.
  • Liability. Section 11 applies to this feature in full. To the extent permitted by law, our liability for any loss of data is limited as set out in section 11 (to the price you paid in the last 12 months, and without liability for indirect losses). Nothing in these terms excludes or limits liability that cannot be excluded or limited by law, such as liability for intent or gross negligence, or the mandatory rights of consumers.

13. Governing law and disputes

Romanian law applies. For disputes, we first turn to each other amicably. Consumers can turn to ANPC and SAL (Legal information) and keep the right to bring the matter before the court of their domicile. For businesses, jurisdiction lies with the competent courts of Bucharest, Romania.

14. Changes

If we change these terms, we publish the new version here with its effective date, and for important changes we e-mail you if you hold a paid license. Changes do not apply retroactively, to your disadvantage, to orders already paid. If you disagree with a change, you may stop using Klasor and ask for a proportional refund for the remaining paid period.

15. General provisions

  • Severability: if any clause of these terms is declared invalid, the rest stays in force, and the invalid clause is replaced by the closest valid one.
  • No waiver: not exercising a right at a given moment does not mean we give it up.
  • Entire agreement: these terms, the Refund policy and the Privacy policy are the entire agreement between us regarding Klasor.
  • Notices: we write to each other by e-mail: you at the addresses on the Contact page, we at the address given when ordering.
  • Assignment: you may not transfer the contract to anyone else; we may transfer it to a successor (for example on a takeover of the business), informing you.
  • Capacity: you confirm that you have the legal age and capacity to enter into this contract, or that you act for a company that has it.
  • Language: these terms are drafted in Romanian; this English version is for information only, and in case of discrepancy the Romanian version prevails.

16. Contact

ENGINEERIO S.R.L., tax ID RO 50410082, Șos. Olteniței 246, Sector 4, Bucharest, Romania. E-mail: contact@klasor.app.