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Flet Studio Terms of Service

Effective date: July 14, 2026

These Terms of Service ("Terms") form a binding agreement between you and Appveyor Systems Inc. ("AppVeyor", "we", "us", or "our") and govern your access to and use of the Flet Studio service ("Flet Studio" or the "Service"). Flet Studio is a hosted development environment and runtime for building applications with the Flet framework.

Please read these Terms carefully. By accessing or using Flet Studio, you agree to be bound by these Terms and by our Privacy Policy. If you do not agree, you must not use the Service.

1. Acceptance of Terms​

By creating an account, signing in, or otherwise using Flet Studio, you confirm that you have read, understood, and agree to be bound by these Terms. If you are accepting these Terms on behalf of a company, organization, or other legal entity, you represent and warrant that you have the authority to bind that entity to these Terms, in which case "you" refers to that entity.

We may update these Terms from time to time as described in Section 14.4. Your continued use of the Service after an update takes effect constitutes acceptance of the updated Terms.

2. The Service​

Flet Studio provides a hosted environment that allows you to create, edit, store, run, and share applications written in Python using the Flet framework. The Service includes account management, project storage, code editing, AI-assisted development, application execution, sharing and publishing, and related features. Flet Studio is currently delivered through the browser; we may also offer desktop or mobile applications in the future.

We may add, modify, or discontinue features at any time. Where a change materially and adversely affects the way you use the Service, we will use commercially reasonable efforts to provide advance notice through the Service or by email.

3. Accounts and Eligibility​

3.1 Eligibility​

You must be at least 16 years old to use Flet Studio. If you are using the Service on behalf of an entity, you must have authority to act on its behalf. The Service is not directed to children under 16, and we do not knowingly permit them to create accounts.

3.2 Account creation​

You can create an account by signing in with a supported identity provider (currently GitHub, Google, or Microsoft) or, where available, by creating a local account with an email and password. You must provide accurate and complete information, and you must keep it accurate over time.

3.3 Account security​

You are responsible for safeguarding your credentials and for all activity that occurs under your account. You must notify us promptly at legal@flet.dev if you suspect unauthorized access to your account.

3.4 One account per person​

You may not create multiple personal accounts to circumvent quotas, restrictions, or suspensions, except where we expressly permit it (for example, separate personal and team accounts).

3.5 Privacy​

Information you provide when creating and using an account is processed in accordance with our Privacy Policy.

3.6 Communications​

We send service and transactional emails about your account and the Service (for example, security notices and billing communications); you cannot opt out of these while you hold an account. Account holders are also subscribed to the Flet Studio newsletter with product news and updates. You can unsubscribe from the newsletter at any time using the toggle in your account settings or the unsubscribe link included in every newsletter email.

4. Acceptable Use​

You agree not to use Flet Studio to do any of the following, or to permit or encourage others to do so:

  • Upload, create, transmit, or distribute content that is unlawful, infringing, defamatory, harassing, threatening, hateful, obscene, sexually explicit, or that promotes violence
  • Send spam, conduct phishing, distribute malware, or engage in fraud
  • Violate the intellectual-property, privacy, publicity, or other rights of any person or entity
  • Impersonate any person or entity or misrepresent your affiliation with one
  • Probe, scan, or test the vulnerability of the Service or circumvent any authentication, access control, or rate-limiting mechanism
  • Reverse engineer, decompile, or disassemble any part of the Service, except to the extent applicable law expressly permits
  • Use automated means (bots, crawlers, scrapers) to access the Service in ways that are not expressly authorized, or to extract data at a scale or rate that interferes with normal operation
  • Exceed your assigned quotas, evade rate limits, or otherwise consume disproportionate resources
  • Run cryptocurrency miners, denial-of-service tooling, botnet clients, or any workload whose purpose is to abuse compute, storage, or network resources
  • Use the Service in a manner that violates any applicable law, regulation, or third-party agreement, or that violates export-control or sanctions laws

We may, but are not obligated to, investigate suspected violations and may take any action we consider appropriate, including limiting features, removing content, or suspending or terminating your account.

5. User Content and License Grant​

5.1 Ownership​

"User Content" means the source code, files, project metadata, and any other materials you create, upload, or store using Flet Studio. You retain all ownership rights in your User Content. Nothing in these Terms transfers ownership of your User Content to us.

5.2 License to AppVeyor​

You grant AppVeyor a worldwide, non-exclusive, royalty-free, fully paid license to host, store, transmit, display, copy, and execute your User Content solely as needed to operate and provide the Service to you, including making backups, performing maintenance, and enabling features you have requested. The license is limited to these operational purposes; it is not a license to publish, monetize, or repurpose your User Content.

This license terminates when you delete the relevant User Content or close your account, except that we may retain copies in routine backups for a limited period and as required by law, as described in our Privacy Policy.

5.3 No publication or sharing without your instruction​

AppVeyor will not publish, share, or redistribute your User Content, or make it publicly available, except as you explicitly direct us to do (for example, by using a feature that publishes content at your request). This commitment applies regardless of any other clause in these Terms.

5.4 Your responsibility​

You are solely responsible for your User Content, including its legality and your right to use it. You represent and warrant that you have all rights necessary to grant the license in Section 5.2, and that your User Content does not violate the Acceptable Use restrictions in Section 4.

If you believe content on Flet Studio infringes your copyright, send a notice to legal@flet.dev that includes:

  1. A physical or electronic signature of the rights holder or authorized representative
  2. Identification of the work claimed to have been infringed
  3. Identification of the allegedly infringing material with enough detail to locate it
  4. Your contact information (address, telephone number, email)
  5. A statement that you have a good-faith belief that the use is not authorized
  6. A statement, under penalty of perjury, that the information in the notice is accurate and that you are authorized to act for the rights holder

We will respond to valid notices in a manner consistent with applicable copyright law and may remove allegedly infringing material and terminate the accounts of repeat infringers.

6. AI Features​

Flet Studio includes an AI agent that can read, generate, and modify your app code based on your instructions.

Third-party model providers. To generate responses, your prompts, conversation history, app file contents (including images), and basic profile information (your name, email address, and username) are sent to third-party AI model providers, as described in our Privacy Policy.

AI output. AI output is generated automatically. It may be inaccurate or incomplete, and generated code may not work or may contain security issues. You are responsible for reviewing and testing AI output before relying on it. AI output stored in your apps is treated as your User Content under Section 5.

AI credits. AI usage consumes AI credits, metered by model token usage at the rates displayed within the Service. Your plan includes a monthly credit allowance, and additional credits can be purchased (see Section 7).

Your use of AI features is subject to Section 4 (Acceptable Use); you may not use them to generate unlawful or malicious content or attempt to circumvent usage metering.

7. Plans, Billing, and Payments​

7.1 Plans​

Flet Studio is offered under a free plan and one or more paid plans. The current plans, their features and limits, and their prices — together with the price of AI credit packs — are listed on our pricing page. We may change plan limits and pricing with reasonable advance notice; where we materially reduce a limit, we will provide notice through the Service or by email. A price change for a subscription takes effect at the start of a subsequent billing period.

7.2 AI credit packs​

AI credit packs are one-time purchases. Purchased credits do not expire while your account remains active. Monthly plan credits reset each billing cycle and do not roll over. AI credits have no cash value and are not transferable.

7.3 Payment processing​

Payments are processed by our third-party payment processor, Stripe. By making a purchase you agree to Stripe's terms applicable to the payment. Your card details are collected by Stripe directly and are not received or stored by AppVeyor. Paid plans are billed in advance and renew automatically each month until cancelled. You can manage or cancel your subscription at any time through the billing portal in your account settings; cancellation takes effect at the end of the current billing period, and you retain paid-plan features until then. When a subscription ends, your account reverts to the free plan and its limits.

7.4 Taxes​

Prices shown do not include taxes. Applicable sales tax will be calculated based on your billing address and itemized at checkout.

7.5 Refunds​

All fees and credit purchases are non-refundable except where required by applicable law. We do not provide credits or prorated refunds for partial billing periods, and unused AI credits are not redeemable for cash.

7.6 Non-payment​

If a payment for your subscription fails and cannot be collected after our payment processor's retries, we may downgrade your account to the free plan or suspend paid features.

8. Service Availability and Modifications​

We strive to keep Flet Studio available and performant, but the Service is provided without any uptime or availability guarantee. We may perform scheduled or emergency maintenance, suspend access to all or part of the Service, or modify, deprecate, or discontinue features at any time.

Where a change materially and adversely affects how you use the Service, we will use commercially reasonable efforts to provide advance notice through the Service or by email.

9. Suspension and Termination​

9.1 Termination by you​

You may stop using Flet Studio at any time. You may delete your account by emailing legal@flet.dev from the email address associated with your account.

9.2 Suspension or termination by AppVeyor​

We may suspend or terminate your access to all or part of the Service:

  • Immediately, if we reasonably believe you have breached these Terms, your account presents a security risk, you are abusing the Service, or we are required to do so by law
  • With reasonable notice, for any other reason

9.3 Effect of termination​

Upon termination, your right to use the Service ends immediately. We will handle your account data and User Content in accordance with our Privacy Policy, which provides that account data and User Content are deleted or anonymized within 30 days of a deletion request, subject to backups and legal retention requirements.

9.4 Survival​

The following sections survive termination of these Terms: Section 5.1 (Ownership), Section 5.4 (Your responsibility), Section 7.5 (Refunds), Section 10 (Disclaimers), Section 11 (Limitation of Liability), Section 12 (Indemnification), Section 13 (Governing Law and Dispute Resolution), and Section 14 (General Provisions), together with any other provision that by its nature should survive.

10. Disclaimers​

THE SERVICE IS PROVIDED "AS IS" AND "AS AVAILABLE" WITHOUT WARRANTIES OF ANY KIND, WHETHER EXPRESS, IMPLIED, OR STATUTORY. TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, APPVEYOR DISCLAIMS ALL WARRANTIES, INCLUDING WITHOUT LIMITATION ANY WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, NON-INFRINGEMENT, ACCURACY, QUIET ENJOYMENT, AND ANY WARRANTIES ARISING FROM COURSE OF DEALING OR USAGE OF TRADE.

WE DO NOT WARRANT THAT THE SERVICE WILL BE UNINTERRUPTED, ERROR-FREE, SECURE, OR FREE OF HARMFUL COMPONENTS, OR THAT ANY CONTENT (INCLUDING YOUR USER CONTENT) WILL BE PRESERVED WITHOUT LOSS. YOU ARE SOLELY RESPONSIBLE FOR THE CODE AND APPLICATIONS YOU CREATE WITH FLET STUDIO AND FOR THE CONSEQUENCES OF RUNNING THEM.

Some jurisdictions do not allow the exclusion of certain warranties, so some of the above exclusions may not apply to you.

11. Limitation of Liability​

TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW:

  • No indirect damages. APPVEYOR WILL NOT BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, EXEMPLARY, OR PUNITIVE DAMAGES, OR FOR ANY LOSS OF PROFITS, REVENUE, GOODWILL, OR DATA, ARISING OUT OF OR IN CONNECTION WITH THESE TERMS OR THE SERVICE, EVEN IF APPVEYOR HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
  • Aggregate cap. APPVEYOR'S TOTAL AGGREGATE LIABILITY ARISING OUT OF OR IN CONNECTION WITH THESE TERMS OR THE SERVICE WILL NOT EXCEED THE GREATER OF (a) THE AMOUNTS YOU PAID TO APPVEYOR FOR THE SERVICE IN THE TWELVE (12) MONTHS PRECEDING THE EVENT GIVING RISE TO THE CLAIM, OR (b) ONE HUNDRED CANADIAN DOLLARS (CA$100).
  • Data-loss exclusion. APPVEYOR IS NOT LIABLE FOR ANY LOSS, ALTERATION, OR DESTRUCTION OF YOUR USER CONTENT. YOU ARE RESPONSIBLE FOR MAINTAINING YOUR OWN INDEPENDENT BACKUPS.

These limitations apply regardless of the legal theory on which a claim is based (contract, tort, statute, or otherwise) and apply even if a remedy fails of its essential purpose. Some jurisdictions do not allow the exclusion or limitation of certain damages; in those jurisdictions, the above limitations apply to the maximum extent permitted by law.

12. Indemnification​

You agree to defend, indemnify, and hold harmless Appveyor Systems Inc., its affiliates, and their respective officers, directors, employees, and agents from and against any and all claims, damages, losses, liabilities, costs, and expenses (including reasonable legal fees) arising out of or related to:

  • Your User Content
  • Your use of or access to the Service
  • Your breach of these Terms
  • Your violation of any applicable law or any rights of a third party

We may, at our option, assume the exclusive defense and control of any matter subject to indemnification by you, in which case you agree to cooperate with our defense.

13. Governing Law and Dispute Resolution​

These Terms, and any dispute or claim arising out of or in connection with them or their subject matter (including non-contractual disputes or claims), are governed by the laws of the Province of British Columbia and the federal laws of Canada applicable therein, without regard to conflict-of-laws principles.

You and AppVeyor each consent to the exclusive jurisdiction of the courts located in the Province of British Columbia, Canada for the resolution of any dispute arising out of or relating to these Terms or the Service, and you waive any objection based on inconvenient forum.

These Terms do not require mandatory arbitration, and nothing in these Terms is intended to waive your right to participate in a class action where applicable law would otherwise permit one.

14. General Provisions​

14.1 Entire agreement​

These Terms, together with the Privacy Policy and any additional terms you accept at the time of purchasing a paid feature, constitute the entire agreement between you and AppVeyor concerning the Service and supersede all prior or contemporaneous agreements on the same subject.

14.2 Severability​

If any provision of these Terms is held to be invalid or unenforceable, that provision will be enforced to the maximum extent permissible, and the remaining provisions will remain in full force and effect.

14.3 No waiver​

Our failure to enforce any right or provision of these Terms will not be deemed a waiver of that right or provision.

14.4 Changes to these Terms​

We may modify these Terms from time to time. When we make material changes, we will update the "Effective date" above and, where appropriate, notify you through the Service or by email before the changes take effect. Your continued use of the Service after the new Terms take effect constitutes acceptance.

14.5 Assignment​

You may not assign or transfer these Terms or your account without our prior written consent. We may assign these Terms to an affiliate or in connection with a merger, acquisition, reorganization, or sale of assets, on notice to you.

14.6 Relationship of the parties​

Nothing in these Terms creates a partnership, joint venture, agency, employment, or fiduciary relationship between you and AppVeyor.

14.7 Force majeure​

Neither party will be liable for failure or delay in performance caused by events beyond its reasonable control, including acts of God, war, terrorism, civil unrest, labor disputes, internet or telecommunications outages, governmental actions, or epidemics.

14.8 Notices​

We may give notices to you through the Service, by posting on our website, or by email to the address associated with your account. You must give notices to us in writing at legal@flet.dev.

14.9 Contact​

Appveyor Systems Inc. Email: legal@flet.dev