These Terms & Conditions ("Terms") govern your access to and use of OreML, downloadable software for Windows (a Linux edition is in final testing and is not yet offered) for zero-code tabular data preprocessing (the "Software"), together with any related updates, licence services, and this website (collectively, the "Service"). By purchasing, downloading, installing, or using the Software, you agree to be bound by these Terms. If you do not agree, do not use the Service.
The Software is developed and provided by OBSITH, a sole proprietorship (Ατομική Επιχείρηση) established and registered in Greece ("we", "us", "OreML", the "Licensor"), identified by the registration details below. OBSITH is the registered business title of the undertaking, entered in the Greek General Commercial Registry (ΓΕΜΗ) under the number shown below. Billing, invoicing, and payment collection for the Service are handled by our authorized reseller, Paddle (see Section 4 below).
OreML processes tabular datasets from three kinds of source: files (CSV, TSV, JSON, Excel, Parquet, Feather, ORC, Avro, HDF5, XML and similar formats), databases, and cloud object storage. Each purchased licence is issued as a single node-locked key, bound to one device at a time (see Section 5).
All purchases of OreML are sold by and billed through Paddle.com Market Ltd ("Paddle"), acting as our authorized reseller and the Merchant of Record for this transaction. Paddle is responsible for processing your payment, calculating and remitting applicable VAT/sales tax, issuing invoices and receipts, handling cancellations, and processing refunds. Your purchase is subject to Paddle's own Buyer Terms and Refund Policy, in addition to these Terms. For anything related to your payment, invoice, VAT, subscription cancellation, or refund, Paddle — not OreML — is your contracting party for that transaction and the correct point of contact (see our Refund Policy).
Subject to your compliance with these Terms and payment of applicable fees, we grant you a limited, non-exclusive, non-transferable, revocable licence to install and use one copy of the Software on one machine at a time, used by one person at a time, and one operating system per computer, for your own internal data-processing purposes. Processing runs are started from the OreML desktop app: the Software does not start a run requested any other way, for example from a command line or by another program. Activating the other operating system's copy on the same computer, after confirming the switch in that copy, ends the licence for the previous copy on that computer. The Software requires Windows 11 with a TPM 2.0 security chip: every activation, on any plan, is bound to a key held in that chip, and the Software does not activate on a computer whose chip it cannot use.
You may not, except to the extent applicable law expressly permits it and that permission cannot be excluded by contract:
(a) reverse-engineer, decompile, or disassemble the Software;
(b) attach a debugger, tracer, profiler or other instrumentation to the running Software, inject code or libraries into its process, or read, copy or capture its process memory, in order to obtain its source code, algorithms, constants, models or other non-public implementation details;
(c) extract, unpack, decrypt, patch, repackage, or remove any protection from, the Software's installer, files or runtime components, or use or distribute anything obtained that way; or
(d) use or disclose information obtained by any act that the law does permit — including decompilation for interoperability — for any purpose other than the one the law permits it for, give it to others except where that purpose requires, or use it to develop, produce or market a software product substantially similar in its expression, or for any other act that infringes copyright.
You may also not: (e) circumvent or attempt to circumvent any licence-key validation, machine-binding, or usage-limit mechanism; (f) resell, sublicense, rent, lease, or distribute the Software or your licence key to any third party; (g) remove or obscure any proprietary notices; or (h) use the Software to build a competing product.
Nothing in this section limits any right you have under Articles 5(3) and 6 of Directive 2009/24/EC or the national law implementing it.
Protection check. To keep the Software and your licence secure, the Software checks, on your computer, whether another program has attached to it — for example by loading a file into the Software's own process, attaching a debugger or tracer to it, switching on its remote-attach interface, or changing the Software's own program code in memory. You agree that we may make this check and act on what it finds, as follows. If it finds one, the Software locks its licensed functionality automatically and with immediate effect (where the only finding is a file loaded into its background processing component, which graphics drivers and overlays commonly do, it sends us the notice but does not lock) (a processing run already in progress is allowed to finish) and, only if you have allowed it in the Software, sends us a notice describing what it found, as set out in our Privacy Policy. The lock is temporary: it lifts when the other program is closed and you restart the Software; it never deletes, corrupts or modifies your data or files; and it does not end your licence. We may review the notice and, where it shows a breach of this Section 5 or a security or fraud risk to the Service, we may act under Section 10. If you believe the lock was triggered wrongly — for example by security software you use — write to support@oreml.com and a person will review it. Nothing in this paragraph limits any right you have under applicable law.
The Software, including its underlying methodology and all associated intellectual property, remains the sole property of the Licensor. No ownership rights are transferred to you — only the licence described in this section.
Your licence is bound to one machine at a time. The in-app option to deactivate the current machine immediately frees your seat so the licence can be activated on a different computer. This is intended for migrating your licence — for example, when you get a new computer, reinstall your operating system, or replace hardware — and not for switching back and forth between two machines you use side by side. Each subscription covers one computer at a time, and plans covering several computers at once are not offered yet; if you need OreML active on two computers at the same time, write to support@oreml.com.
To keep this migration path from being used to share one seat across many machines, activating your licence on a machine it has not been active on before (a "transfer") is limited to two transfers in any rolling 180-day period. "Rolling" means we always look back 180 days from the moment of the request, not a fixed calendar period that resets on a set date — an older transfer simply ages out of that window over time. Re-activating a machine your licence has already been active on does not count against this limit. Separately, so that a single seat cannot be passed back and forth between computers, releasing a seat or moving the licence to another computer is limited to three times in any 24 hours. If you reach the limit, the Software will tell you the date on which your oldest transfer ages out and a transfer becomes available again. When the same computer comes back with a new identity (for example after an update changes how the Software identifies computers, or after a reinstall), the Software takes the licence back to it automatically; this counts as one of the three moves in 24 hours, does not use a transfer, and is never used to pass the licence back to an identity it left in the last 30 days.
If your machine is lost, stolen, or has failed and you cannot deactivate it yourself, activate the Software on the replacement and choose Move the licence to this computer when it asks: the old machine loses the licence, and the move counts as one of the transfers above. If the move is refused (for example, both transfers have been used), contact support@oreml.com for a manual override.
Files you export from the Software in Parquet, Feather or Excel format carry a persistent, one-way identifier embedded in the file's own metadata — never in a cell, column, or row of your data. It identifies your licence, not you as an individual; cannot be reversed to recover your licence key or any personal information; and survives table-level rewrites of the file (reading it and writing it back, selecting columns, filtering rows, concatenating, reordering), so a file built from your export and forwarded to a colleague or client still carries it. It does not survive being loaded into a dataframe library and written out as a new file, because those objects carry no file metadata of their own. In Excel the identifier is a document property, never a cell. Exports in CSV, JSON, and other formats without a file-metadata layer are not marked.
This does not conflict with our commitment that your data never leaves your machine while the Software runs (see Section 1 of our Privacy Policy): the identifier is never transmitted to us or to anyone else by the Software. It exists solely inside the files on your own device, and travels only if and where you choose to send those files yourself. See our Privacy Policy for further detail.
We offer a free, cardless trial: no payment card is required to start. The free trial runs on a physical computer, with the current version of the Software: it cannot be started on a virtual machine, or on a computer the Software cannot confirm is physical (if yours is a physical computer, write to support@oreml.com and we will allow it), and a paid licence works on a virtual machine. It also needs the computer’s TPM 2.0 security chip, certified by the chip’s maker: when the trial is activated, the Software proves the chip is genuine, and each chip starts one free trial, whatever the account. The trial is limited to one dataset of up to 100,000 rows, 100 columns, and 250 MB, for a single processing run. It lasts 8 days from your first download of the app, provided you download it within 8 days of signing up; otherwise it ends 8 days after you signed up. If the run stops part-way — it crashes, or you stop it — the Software can resume that same run on the same dataset within 24 hours without using it up; starting a new run on different data is not part of the trial. All 25 processing steps run at full capability on data within this cap. If you do not add a payment method before the trial period ends, the trial simply lapses — you are never charged. If you add a payment method during the trial, it is charged automatically when the trial ends, unless you choose Cancel my trial in the Software first (Settings › Licence), which ends the trial at once with nothing charged.
The paid subscription is a flat 49 per month in your billing currency — €49, or US$49 for a billing address in the United States — exclusive of VAT/sales tax. Paddle calculates the applicable tax at checkout based on your location and shows you the total payable before you confirm. Subscribing removes the trial's limits entirely — any dataset size, any number of processing runs, with no time limit.
The subscription renews automatically every month and continues until you cancel — there is no fixed term, and no notice beyond your ordinary billing receipt precedes each renewal. Fees are billed in advance on a recurring monthly basis by Paddle until cancelled. You can cancel at any time, at least as easily as you signed up, through Paddle's Buyer Portal at paddle.net, or from within the app itself. Cancelling stops future renewal charges; your access continues until the end of the billing period already paid for. Cancelling a free trial ends it immediately. A refund ends access to the refunded period at once, and the subscription ends with it. So that the cancel-and-refund cycle cannot be used to obtain the Service without paying, starting a new subscription after a cancellation or refund is limited to twice, and cancelling to twice, in any 30 days (see our Refund Policy for how refunds and your statutory withdrawal right work).
Cancelling your billing subscription is separate from deactivating a machine seat: cancelling stops future charges (your access continues until the end of the current billing period, then locks); deactivating a machine frees that seat so the licence can be activated on a different computer (see Section 6), without affecting your billing.
By subscribing, you expressly request that we begin supplying the Service to you immediately, before the 14-day statutory withdrawal period described in our Refund Policy has run. Requesting immediate access does not reduce your withdrawal right — see Section 5 of our Refund Policy for how immediate access and your full withdrawal right sit together.
Your licence is revocable. If your subscription is cancelled, a payment fails and is not resolved within 7 days of the first failed attempt, or we revoke a licence for breach of these Terms (including attempted circumvention of licence protections), the Software will gracefully lock: it will refuse to run its licensed functionality, but it will never delete, corrupt, or modify any of your data or files. If a renewal payment fails within 12 months of an earlier renewal payment that failed and was not resolved within 7 days, the Software locks as soon as that payment fails, without the 7-day period. Reactivating a valid, paid licence restores full functionality immediately.
Copies running at the same time. One licence is for one computer and one person at a time. If the Software runs at the same time on two computers, in two copies of the same virtual machine, or in two remote desktop sessions on one computer, under one licence, the Software first shows you a warning; if it happens again on another day within 14 days, the licence is locked automatically and the Software tells you why. Write to support@oreml.com to have it unlocked. Locking never deletes, corrupts, or modifies your data or files.
Working offline. The Software can keep working without an internet connection for a limited time (two days for a trial or a new installation, up to seven once your installation is established). If the licence service sees a computer that is not recorded as a physical computer running from an earlier saved copy of itself (for example a restored virtual-machine snapshot), the Software on that computer cannot work offline for 30 days; it keeps working normally while it is connected. Write to support@oreml.com if this was a mistake.
Suspension. We may suspend or terminate your access to the Service, in whole or in part and with immediate effect where the circumstances require it, if: (a) fees due are not paid and the failure is not resolved; (b) we reasonably believe the Service is being used in breach of Section 13, or in a way that presents a security or fraud risk to the Service, to us, or to other customers; (c) you repeatedly or seriously breach these Terms; or (d) we are required to do so by law or by a payment provider, regulator, or court. Where it is lawful and practical to do so we will tell you why and, for anything other than a security, fraud, or legal requirement, give you a reasonable opportunity to put the matter right first. Suspension follows the same rule as revocation above: the Software refuses its licensed functionality and never deletes, corrupts, or modifies your data or files. If we suspend or terminate other than for your breach, we will refund the unused portion of any period you have paid for.
The Software is provided "as is" and "as available," without warranty of any kind, express or implied, including without limitation warranties of merchantability, fitness for a particular purpose, and non-infringement. We do not warrant that the Service will be uninterrupted, timely, secure, or error-free, that any defect will be corrected, or that the licence service will be available at any particular time. Licence validation depends on network access and on services we do not control; the Software is designed to keep working offline for a limited period precisely because that availability cannot be guaranteed.
The Software applies automated statistical, machine-learning, and data-transformation techniques to your data. Its outputs, recommendations, and any derived models are provided for informational purposes only and do not constitute professional, financial, medical, legal, or other advice. We do not warrant the accuracy, completeness, or fitness of any output for your specific use case. You remain solely responsible for validating results before relying on them for any decision.
To the maximum extent permitted by applicable law, in no event will the Licensor be liable for any indirect, incidental, special, consequential, or punitive damages, or any loss of profits, revenue, data, or business opportunity, arising out of or related to your use of the Software, even if advised of the possibility of such damages. Our total aggregate liability for any claim arising out of or relating to the Service will not exceed the amount you paid for the Service in the twelve (12) months preceding the claim. Nothing in these Terms limits liability that cannot be limited under applicable EU or Greek consumer-protection law.
You agree to use the Software only for lawful purposes and in compliance with all applicable export-control and sanctions laws. You may not use the Software in any jurisdiction subject to comprehensive trade sanctions, or if you are a restricted or denied party under applicable law.
You further agree not to use the Service:
You are responsible for the data you process with the Software, for having the right to process it, and for any decision you take on the basis of its output.
These Terms are governed by the laws of Greece and, where applicable, European Union law, without regard to conflict-of-law principles. If you are a consumer resident in the EU or UK, nothing in these Terms affects the mandatory statutory rights available to you under the law of your country of residence, including applicable withdrawal rights (see our Refund Policy).
The Software incorporates open-source and other third-party components. Where their licences require it, their copyright and licence notices are reproduced at Third-Party Notices, which forms part of these Terms by reference.
We may update these Terms from time to time. Minor or clarifying changes take effect when the "Last updated" date above changes. Material changes — anything that reduces your rights or increases your obligations — will be notified to you by email at least 14 days before they take effect, and you may cancel at any time before then if you do not accept them. Continued use of the Service after a change takes effect constitutes acceptance of the revised Terms.
Questions about these Terms can be sent to support@oreml.com. For billing, invoicing, or refund matters, please see Paddle's Buyer Terms or our Refund Policy.