Legal

Terms of Service

Last updated: December 22, 2025

Welcome to arc. These Terms of Service ("Terms") govern your use of the arc mobile application and related services (collectively, the "Service") operated by Quantini OÜ ("we," "us," or "our"). By accessing or using the Service, you agree to be bound by these Terms.

Important Notice

arc is a budgeting tool designed to help you manage your finances. It is not a financial advisor, and the information provided should not be considered financial, investment, or legal advice. Always consult with qualified professionals for financial decisions.

1.Acceptance of Terms

By downloading, installing, or using arc, you acknowledge that you have read, understood, and agree to be bound by these Terms. If you do not agree to these Terms, you may not access or use the Service.

We reserve the right to modify these Terms at any time. We will notify you of any material changes by updating the "Last updated" date and, where appropriate, providing additional notice. Your continued use of the Service after such modifications constitutes your acceptance of the updated Terms.

2.Eligibility

To use arc, you must:

  • Be at least 16 years of age (or the age of majority in your jurisdiction)
  • Have the legal capacity to enter into a binding agreement
  • Not be prohibited from using the Service under applicable laws
  • Provide accurate and complete registration information

3.Account Registration & Security

To access certain features, you may need to create an account. You are responsible for:

  • Maintaining the confidentiality of your account credentials
  • All activities that occur under your account
  • Notifying us immediately of any unauthorized access
  • Ensuring your contact information remains accurate and up-to-date

We reserve the right to suspend or terminate accounts that violate these Terms or are inactive for extended periods.

4.License & Permitted Use

Subject to your compliance with these Terms, we grant you a limited, non-exclusive, non-transferable, revocable license to:

  • Download and install arc on your personal devices
  • Use the Service for personal, non-commercial budgeting purposes
  • Access features included in your subscription tier

This license does not include the right to modify, distribute, sell, or create derivative works based on the Service.

5.Prohibited Activities

You agree not to:

Reverse engineer or decompile the app
Use the Service for illegal purposes
Attempt to gain unauthorized access
Interfere with the Service's operation
Share your account with others
Use automated tools or bots
Violate any applicable laws
Infringe on intellectual property rights

6.Subscriptions & Payments

Free Tier

arc offers a free tier with basic features. Free tier users can access core budgeting functionality with their own Actual Budget server.

Paid Subscriptions

Premium features are available through paid subscriptions. Subscriptions are billed in advance on a monthly or annual basis, depending on your chosen plan.

Automatic Renewal

Subscriptions automatically renew unless cancelled at least 24 hours before the end of the current billing period. You can manage your subscription through your App Store or Google Play account settings.

Price Changes

We may change subscription prices from time to time. Price changes will be communicated in advance and will apply to the next billing cycle after the notice period.

7.Intellectual Property

arc, including its design, features, and content, is owned by Quantini OÜ and protected by copyright, trademark, and other intellectual property laws. The Service may include open-source components (such as Actual Budget) which are subject to their respective licenses.

You retain ownership of any data you input into arc. By using the Service, you grant us a limited license to process your data solely for the purpose of providing the Service.

8.Disclaimer of Warranties

THE SERVICE IS PROVIDED "AS IS" AND "AS AVAILABLE" WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO:

  • Implied warranties of merchantability
  • Fitness for a particular purpose
  • Non-infringement
  • Accuracy or reliability of any information
  • Uninterrupted or error-free operation

9.Limitation of Liability

TO THE MAXIMUM EXTENT PERMITTED BY LAW, QUANTINI OÜ SHALL NOT BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, OR PUNITIVE DAMAGES, INCLUDING BUT NOT LIMITED TO:

  • Loss of profits, data, or goodwill
  • Service interruption or computer damage
  • Cost of substitute services
  • Any damages arising from your use of the Service

Our total liability shall not exceed the amount you paid us in the twelve (12) months preceding the claim.

10.Indemnification

You agree to indemnify, defend, and hold harmless Quantini OÜ and its officers, directors, employees, and agents from any claims, damages, losses, liabilities, and expenses (including reasonable attorneys' fees) arising out of or related to your use of the Service, your violation of these Terms, or your violation of any rights of another party.

11.Governing Law & Jurisdiction

These Terms shall be governed by and construed in accordance with the laws of the Republic of Estonia, without regard to its conflict of law provisions.

Any disputes arising from these Terms or the Service shall be resolved in the courts of Tallinn, Estonia. You agree to submit to the personal jurisdiction of such courts.

For users in the European Union, nothing in these Terms affects your statutory rights as a consumer.

12.Termination

We may terminate or suspend your access to the Service immediately, without prior notice or liability, for any reason, including if you breach these Terms.

Upon termination, your right to use the Service will immediately cease. All provisions of these Terms which by their nature should survive termination shall survive, including ownership provisions, warranty disclaimers, indemnity, and limitations of liability.

13.Severability

If any provision of these Terms is held to be unenforceable or invalid, such provision will be changed and interpreted to accomplish the objectives of such provision to the greatest extent possible under applicable law, and the remaining provisions will continue in full force and effect.

14.Contact Information

For any questions about these Terms of Service, please contact us:

Quantini OÜ

Registry Code: 17114373

Tallinn, Estonia

legal@arc.moi