Legal

Terms of Service

Last updated: 16 September 2026

1. Agreement to Terms

These Terms of Service (“Terms”) constitute a binding agreement between you (“Customer”, “you”) and “Martin Solutions” Ltd(UIC/EIK: 208473110), a Bulgarian limited liability company (“we”, “us”, “Kronoscube”), represented by its Manager (Управител), Martin Ivanov, governing your use of the Kronoscube platform at https://www.kronoscube.com and related services.

By creating an account or using the Service, you agree to be bound by these Terms and our Privacy Policy. If you do not agree, do not use the Service.

🚧 BETA SOFTWARE NOTICE

Kronoscube is currently in BETA. The Service is provided on an “as-is” basis for testing and evaluation purposes.

  • Features may be incomplete, unstable, or subject to change without notice
  • Data loss, service interruptions, and bugs may occur
  • We recommend maintaining backups of critical data
  • Beta status does not excuse us from GDPR obligations, but limits warranties and liability

Bug Bounty Program: Report verified bugs and earn 5% off your next invoice. See Section 15 for details.

2. Service Description

Kronoscube is a B2B SaaS platform for automated overdue invoice collection via email sequences. The Service includes:

  • Multi-step email collection campaigns
  • QuickBooks Online synchronization (optional)
  • Stripe Connect payment link generation (Growth plan)
  • AI tone adjustment for email content (optional)
  • Team member management and collaboration

Note: SMS collection features are not available during the beta period.

3. Trial Period

New accounts receive a 60-day free trial from the date of registration. During the trial:

  • You may create up to 10 invoices with 1 team seat (trial limits)
  • No payment method is required to start the trial
  • Trial ends 60 days after account creation, regardless of when you upgrade
  • After trial expiration, you must subscribe to a paid plan to continue using the Service

When you subscribe to a paid plan during your trial, Stripe will apply the remaining trial period (minimum 48 hours) before the first charge. You will immediately gain access to your selected plan’s features and limits.

4. Pricing and Payment

4.1 Subscription Plans

Starter Plan - $49 USD/month

  • • Up to 100 invoices/month
  • • 2 team members
  • • Email collections
  • • QuickBooks sync
  • • AI tone presets

Growth Plan - $99 USD/month

  • • Up to 400 invoices/month
  • • 5 team members
  • • Everything in Starter
  • • Stripe Connect payments
  • • Custom AI tone

4.2 Payment Terms

  • Subscriptions are billed monthly in advance via Stripe
  • Auto-renewal: Subscriptions renew automatically unless canceled
  • Payment method must remain valid; failed payments may suspend service
  • All fees are in USD and exclude applicable taxes (Martin Solutions Ltd is not currently VAT-registered in Bulgaria)
  • Refunds are not provided for partial months or unused features

4.3 Cancellation

You may cancel your subscription at any time via the Stripe Customer Portal in your account settings. Cancellation takes effect at the end of the current billing period. No partial refunds are issued for early cancellation.

5. Acceptable Use

You agree not to:

  • Use the Service for any unlawful purpose or in violation of applicable laws
  • Send spam, harassment, threats, or abusive content to debtors
  • Violate GDPR, CAN-SPAM, ePrivacy, or other data protection/email marketing laws
  • Upload malware, viruses, or malicious code
  • Reverse engineer, decompile, or attempt to extract source code
  • Resell or sublicense the Service without written authorization
  • Overload or disrupt the Service infrastructure

Your Responsibilities as Controller:

You are the data controller for debtor contact information you upload. You must ensure you have a lawful basis (contract, legitimate interest, consent) to contact debtors under GDPR, CAN-SPAM, and applicable local laws. We process this data on your behalf as a processor under our Data Processing Addendum.

6. Intellectual Property

6.1 Our IP

The Kronoscube platform, including software, design, logos, and documentation, is owned by Martin Solutions Ltd and protected by copyright, trademark, and other intellectual property laws. You receive a limited, non-exclusive, non-transferable license to use the Service under these Terms.

6.2 Your Data

You retain ownership of all content you upload (customer data, invoices, collection messages). You grant us a license to process this data solely to provide the Service. We do not use your data to train AI models or for marketing without explicit consent.

7. Confidentiality

Both parties agree to maintain the confidentiality of non-public information disclosed during the term of this agreement. This does not apply to information that: (a) is or becomes publicly available, (b) was known prior to disclosure, or (c) must be disclosed by law.

8. Account Suspension and Termination

8.1 Suspension

We may suspend your account immediately without notice if:

  • You violate these Terms (especially Acceptable Use)
  • Your account is used for illegal activity or abuse
  • Payment fails after reasonable retry attempts
  • We are required to do so by law or court order

8.2 Termination by You

You may terminate at any time by canceling your subscription. Data will be retained for 30 days after cancellation for account recovery, then permanently deleted.

8.3 Termination by Us

We may terminate your account with 30 days’ notice for convenience, or immediately for cause (Terms violation). Upon termination, you must cease using the Service and pay any outstanding fees.

9. Warranties and Disclaimers

AS-IS SERVICE (ESPECIALLY DURING BETA)

THE SERVICE IS PROVIDED “AS IS” AND “AS AVAILABLE” WITHOUT WARRANTIES OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT.

We do not warrant that the Service will be uninterrupted, error-free, secure, or free of viruses. Beta software is experimental and may contain bugs or cause data loss.

GDPR Compliance: While we disclaim general warranties, we remain committed to GDPR obligations as data processor. See our DPA for security and compliance commitments.

10. Limitation of Liability

LIABILITY CAP

TO THE MAXIMUM EXTENT PERMITTED BY BULGARIAN LAW, OUR TOTAL LIABILITY FOR ANY CLAIMS ARISING FROM OR RELATED TO THE SERVICE SHALL NOT EXCEED THE TOTAL FEES YOU PAID US IN THE 12 MONTHS PRIOR TO THE CLAIM.

WE ARE NOT LIABLE FOR INDIRECT, INCIDENTAL, CONSEQUENTIAL, SPECIAL, OR PUNITIVE DAMAGES, INCLUDING LOST PROFITS, LOST DATA, BUSINESS INTERRUPTION, OR LOSS OF GOODWILL.

Bulgarian Law Exception: This limitation does not exclude liability that cannot be excluded under Bulgarian law, including liability for intentional misconduct, gross negligence, or personal injury.

11. Indemnification

You agree to indemnify and hold harmless Martin Solutions Ltd, its officers, employees, and agents from any claims, damages, or expenses (including reasonable legal fees) arising from:

  • Your violation of these Terms
  • Your violation of GDPR, CAN-SPAM, ePrivacy, or other laws in your use of the Service
  • Claims by debtors you contact through the Service
  • Your customer data or content uploaded to the Service

17. Force Majeure (Непреодолима сила)

Neither party shall be liable for any failure or delay in performing its obligations under these Terms (other than payment obligations already accrued) if such failure or delay results from circumstances beyond that party’s reasonable control (“Force Majeure Event”).

Force Majeure Events include, without limitation:

  • Natural disasters, fire, flood, earthquake, epidemic, or pandemic
  • War, terrorism, civil unrest, embargoes, or acts of government
  • Strikes, labour disputes, or shortages of labour, energy, or materials
  • Failures, interruptions, or global outages of critical third-party infrastructure or sub-processors on which the Service depends, including but not limited to Supabase, Fly.io, Stripe, and other providers identified in our Sub-processor List
  • Internet backbone failures, DNS failures, or widespread cloud-provider outages
  • Power failures, cyberattacks, or denial-of-service attacks not caused by the affected party

During a Force Majeure Event, the affected party’s obligations are suspended for the duration of the event. We shall use reasonable efforts to restore the Service and to notify you of material outages. This clause does not excuse payment for services already rendered.

If a Force Majeure Event continues for more than 30 consecutive days, either party may terminate the affected subscription without liability, except for fees already accrued.

15. Bug Bounty Program

Earn 5% Off Your Next Invoice

During the beta period, we reward customers who report verified, unique bugswith a 5% discount on their next Stripe subscription charge.

Eligibility:

  • Bug must be reproducible, previously unreported, and confirmed by our team
  • Discount applies only to approved bug reports (spam/duplicates/out-of-scope rejected)
  • Maximum 5% per approved bug; discounts stack up to 100% (free month)
  • Discount applied automatically to your next Stripe invoice after approval
  • Non-cash: No cash equivalent; discount applies to subscription charges only

Out of Scope:

  • Feature requests or suggestions (not bugs)
  • Known issues already documented or reported
  • Third-party service issues (Stripe, Supabase, Resend, etc.)
  • Browser compatibility issues with unsupported browsers

How to Report:

Submit bug reports via the “Report a Bug” form in your dashboard. Include:

  • Clear title and description
  • Steps to reproduce
  • Page URL where bug occurs
  • Expected vs. actual behavior

Admin Review: Our team reviews all reports. Approval is at our sole discretion. Duplicate, spam, or invalid reports will be rejected with a reason provided.

12. Changes to Terms

We may update these Terms from time to time. Material changes will be communicated via email at least 30 days before taking effect. Continued use of the Service after changes constitutes acceptance.

13. Governing Law and Jurisdiction

These Terms are governed by the laws of the Republic of Bulgaria, without regard to conflict of law principles.

Any disputes arising from these Terms or the Service shall be subject to the exclusive jurisdiction of the competent courts of Bulgaria (Gabrovo region, or as otherwise applicable under Bulgarian jurisdiction rules).

13.1 Bulgarian Regulatory Bodies

Without prejudice to the B2B nature of the Service, you may also contact the following Bulgarian regulatory body in connection with consumer protection matters:

Комисия за защита на потребителите (КЗП)

Commission for Consumer Protection (CCP)

Address: гр. София, ПК 1000, пл. “Славейков” №4А, ет. 3, 4 и 6
Website: https://kzp.bg

14. Entire Agreement

These Terms, together with our Privacy Policy and Data Processing Addendum, constitute the entire agreement between you and Martin Solutions Ltd regarding the Service.

16. Contact

For questions about these Terms, contact us at: martin.solutions.ltd@gmail.com

“Martin Solutions” Ltd

UIC/EIK: 208473110

Manager (Управител): Martin Ivanov

(Not currently registered for VAT in Bulgaria)

36 Matey Preobrazhenski Street
Dryanovo 5370, Gabrovo Region
Bulgaria

Disclaimer: These Terms of Service are professionally structured for B2B SaaS and Bulgarian law compliance. They are not a substitute for legal advice from a licensed lawyer. If you have specific legal questions, please consult a qualified attorney.