Terms of Service

These Terms govern your use of Deadline Engine, a software product operated by Joao Vitor Humenhuk Achutti, trading as Deadline Engine. The address for legal documents is Allenby St 38, Tel Aviv-Yafo, Israel. References to “we”, “us”, and “our” mean Joao Vitor Humenhuk Achutti. References to “you” mean the individual using Deadline Engine.

Version 2.7 applies when you actively accept it on or after 28 August 2026. Existing account holders must make that fresh acceptance before continuing account use or starting a paid checkout. These Terms govern your use of the Deadline Engine service provided by Joao Vitor Humenhuk Achutti. Separate transaction terms presented by Paddle govern the Paddle Billing sale and payment.

2. No solicitor-client relationship

Using Deadline Engine does not create a solicitor-client relationship between you and Joao Vitor Humenhuk Achutti or any person associated with Deadline Engine. We do not provide legal advice. We do not act as your legal representative. We owe you no fiduciary duty.

Communication with Deadline Engine support staff is not privileged. Information you submit to Deadline Engine in the course of using the calculator, such as trigger dates, party names, or court references, is processed under our Privacy Policy and is not protected by legal professional privilege.

3. Service description

Deadline Engine is deterministic, rule-based software for legal deadlines. The Free service provides calculations, working and citations across the published coverage. An Evidence Record is a one-off, dated PDF record of one eligible supported calculation that the server recomputes from the supplied inputs. Professional is a single-user subscription for eligible saved calculations, matters, calendar tools and evidence records across supported Professional workflows. Neither paid product is assurance, legal verification, a legal opinion or a promise that a date applies to your matter. Current coverage, known exclusions, rule-review dates and material corrections are published on the Methodology and change-log pages.

4. Eligibility and account security

You must be at least 18 years old and able to enter into a binding contract. Paid products are offered only for use in the course of a business, trade, profession or vocation. By buying a paid product, you confirm that you are acting for those purposes and not wholly or mainly outside them. If that is not true, do not buy a paid product. You must provide accurate account information, keep your login credentials confidential, and tell us promptly if you suspect unauthorised access.

5. Fees and billing

Professional is offered from £9.99 per month or £79.99 per year. A payment card is required at checkout and the subscription starts when checkout completes. There is no separate paid trial because the supported calculation service is available free without an account. An Evidence Record is available from £4.99 as a one-off purchase and does not start a subscription.

The pricing page publishes the supported amounts and currencies. A calculator jurisdiction may suggest a familiar currency, but that suggestion does not determine your billing country, tax treatment or plan. Paddle confirms the currency, any applicable tax and the final total before payment. The total presented at checkout controls if an earlier display differs.

For a new purchase completed through Paddle Billing, Paddle acts as merchant of record for the sale and payment transaction. Paddle collects billing and payment details, handles applicable indirect tax compliance, sends transaction receipts, invoices and refund notices, and provides transaction-level support. We do not process or store full card details. Your use of Deadline Engine and product-level support remain provided by Joao Vitor Humenhuk Achutti under these Terms. A purchase or subscription created before this migration may continue under its original payment arrangement.

You may manage or cancel an eligible subscription through Paddle or through the billing portal in your Deadline Engine account.

6. Refunds and cancellation

You may cancel Professional at any time. Cancellation normally takes effect at the end of the current billing period. We do not provide pro-rata subscription refunds except where required by law or expressly agreed by us. Paddle may also handle transaction support and issue a refund in accordance with the Paddle Billing transaction terms, its procedures or applicable law. An Evidence Record is supplied as digital content for the completed calculation identified at checkout and made available for download after payment. If access fails, contact support so that we can restore access or provide a refund where due. Nothing in these Terms excludes any statutory right or remedy that cannot lawfully be excluded.

The full process, including how to request a refund through Paddle, is set out in our Refund Policy.

7. Limitation of liability

To the fullest extent permitted by law:

(a) Our total aggregate liability to you in connection with your use of Deadline Engine, whether in contract, tort including negligence, breach of statutory duty, or otherwise, is limited to the greater of:

(i) the total amount of fees you have actually paid for Deadline Engine in the twelve months immediately before the event giving rise to the claim; and
(ii) one hundred pounds sterling (£100).

(b) We are not liable for any of the following types of loss, even if foreseeable, and even if we have been advised of the possibility of such loss:

• loss of profits;
• loss of business or business opportunity;
• loss of revenue;
• loss of anticipated savings;
• loss of goodwill or reputation;
• loss of clients or contracts;
• any indirect, special, or consequential loss;
• any loss arising from your failure to review and approve a calculation before using it;
• any loss arising from a missed limitation period, missed procedural deadline, or missed filing deadline, where you have used Deadline Engine without checking the inputs, cited source and matter-specific variations;
• any loss arising from a court order, agreement, service issue, factual circumstance, local practice or procedural rule that the selected inputs do not encode;
• any loss arising from changes to procedural rules or public holidays after the published review date;
• any loss arising from your incorrect input of trigger dates, jurisdictions, or other parameters.

(c) The limitations in this clause apply to the maximum extent permitted by law. Nothing in this clause excludes or limits liability for death or personal injury caused by negligence, for fraud or fraudulent misrepresentation, or for any other liability that cannot lawfully be excluded under English law.

(d) The fees reflect the scope of the software service and the allocation of risk in these Terms. Nothing in these Terms asks you to treat Deadline Engine as replacing professional judgement, supervision or your primary diary. We do not assume responsibility for identifying the applicable jurisdiction, forum, trigger, limitation accrual date, order, agreement, service validity or filing obligation, or for taking any step in proceedings.

(e) The contracting party under these Terms is Joao Vitor Humenhuk Achutti, trading as Deadline Engine.

8. Your warranties and indemnity

By using Deadline Engine, you warrant and represent that:

• You use any paid product in the course of a business, trade, profession or vocation and have sufficient training or supervision to interpret procedural deadlines.
• You will review every calculation before approving it for an actual matter, including its inputs, cited source and any matter-specific variation.
• You will not rely on Deadline Engine as your sole or primary source of deadline information for any matter where missing the deadline could cause loss.
• You will maintain your own diary, calendar, and case management records as a primary system, with Deadline Engine as a secondary cross-check only.
• You will not provide an unreviewed Deadline Engine output to a client or present it as legal advice.
• You will not market Deadline Engine output as legal advice or as a substitute for legal advice.
• If you are a solicitor, barrister, paralegal, or other regulated legal professional, you warrant that you understand your professional obligations to maintain your own deadline tracking systems and that Deadline Engine is a tool you use at your own discretion and risk. You acknowledge that the duty to your client to meet procedural deadlines is yours, not ours, and that you cannot transfer that duty by relying on third-party software.

To the fullest extent permitted by law, you agree to indemnify Joao Vitor Humenhuk Achutti and service personnel against a third-party claim and the reasonable costs of defending it, to the extent that the claim results from your material breach of these warranties or your presentation of an unreviewed output as legal advice.

9. No warranty as to accuracy

Deadline Engine is provided “as is” and “as available”. To the fullest extent permitted by law, we make no warranties, express or implied, including but not limited to:

• that every calculation will be accurate or complete for facts the software has not been given;
• that a rule will remain current after the published review date;
• that Deadline Engine will be available without interruption;
• that Deadline Engine is free from defects or errors;
• that Deadline Engine is fit for any particular purpose, including your particular matter.

We make reasonable efforts to review encoded rules, test deterministic calculations, publish rule-set dates and provide citations to source materials. We publish material corrections in the change log. These controls support your review but do not guarantee that an output applies to every individual case.

10. Intellectual property and permitted use

All intellectual property in Deadline Engine, including the calculation logic, interface, documentation, and generated templates, belongs to us or our licensors. We grant you a limited, non-exclusive, non-transferable licence to use Deadline Engine for your internal professional use while the relevant access or paid entitlement is active. A lawfully downloaded Evidence Record may be retained as part of your record for the calculation it identifies.

11. Suspension and termination

We may suspend or terminate your account if you breach these Terms, misuse the service, fail to pay, or if suspension is required by law. On termination, access to paid features ends. Data retention is governed by the Privacy Policy.

12. Changes to these Terms

We may update these Terms from time to time. Material changes will be notified by a prominent in-app notice at least 14 days before they take effect. Continued use after the effective date constitutes acceptance. If you do not accept the changes, you must stop using Deadline Engine and may cancel your subscription.

13. Governing law and disputes

These Terms and any dispute or claim arising out of them are governed by the laws of England and Wales.

This clause governs your relationship with Joao Vitor Humenhuk Achutti under these Terms. Separate Paddle transaction terms presented at checkout may specify their own governing law, support process and dispute route for the sale and payment transaction.

The courts of England and Wales have exclusive jurisdiction to hear and decide any dispute arising out of these Terms. By using Deadline Engine you submit to the exclusive jurisdiction of those courts.

Before commencing any court proceedings, you agree to attempt to resolve the dispute by sending a written notice to deadlineengine@thesmios.com setting out the nature of the dispute and the remedy you seek. We will respond within 14 days. If the dispute remains unresolved 30 days after our response, either party may commence proceedings.

14. Your acknowledgement

By creating an account, by performing a calculation while logged in, by exporting a calendar file, or by paying for a subscription, you acknowledge that:

• You have read and understood these Terms.
• You understand Deadline Engine is a calculator, not legal advice.
• You understand that a paid record is not assurance.
• You confirm that any paid purchase is for business or professional use.
• You understand the limitation of liability and consider it reasonable in light of the price.
• You will review every calculation before approving it for a matter.
• You accept these Terms as a binding contract.

If you do not agree to these Terms, you must not use Deadline Engine.

15. Contact

Questions about these Terms should be sent to deadlineengine@thesmios.com.

Business customers may review our Data Processing Addendum.