Terms of service
The agreement between you and Belto Inc., which operates SlyOS. Last updated 10 September 2026.
Who you are agreeing with
SlyOS is operated by Belto Inc., a corporation incorporated in the State of Delaware on 15 April 2026, Delaware file number 10589231, with its registered office at c/o LegalCorp Solutions, LLC, 1221 College Park Drive, Suite 116, Dover, Delaware 19904, United States. In these terms “Belto”, “we”, “us” and “our” mean Belto Inc., and “SlyOS” means the SlyOS applications, websites, APIs and companion software.
By creating an account, installing any SlyOS application, or using the service, you agree to these terms and to the Privacy Policy, which is incorporated here by reference. If you do not agree, do not use SlyOS. Written notice to us may be sent to the registered office above or to support@belto.world.
SlyOS prepares drafts. You review them and you send them, so you remain the author and stay responsible for what goes out. Pay monthly, cancel whenever, and connect only accounts you are allowed to connect.
Your account
You must be 18 or older and provide accurate details. Keep your credentials secure and tell us promptly if an account is compromised. You are responsible for activity under your account.
Connected channels
Connect only accounts you own or are authorised to use, and follow the terms of those services. Some providers restrict automated access; where a channel becomes unavailable through a provider change, we will tell you and adjust your plan.
Drafts and responsibility
SlyOS generates suggestions. Nothing is sent automatically. Drafts may contain errors, so review before sending — you are the author of every message that leaves your account, and responsible for its content and consequences.
Plans, drafts and usage allowances
Paid plans are billed monthly in advance and include unlimited AI drafting for normal use of the product. Every plan, including the free Preview plan, differs only by how many channels you may connect — not by how much you may draft or send. The free Preview plan includes two channels; connecting more than your plan allows is the one thing a plan prevents, and nothing you have already written or received is removed when you change plan.
Cancellation and refunds
Cancel at any time from Settings; access continues to the end of the paid period. Partial months are not refunded except where required by law. We may suspend accounts for non-payment or misuse after notice.
Acceptable use
Do not use SlyOS for spam, harassment, deception about who is writing, unlawful content, or to impersonate someone else. Do not attempt to reverse engineer, resell or overload the service.
Ownership
Your messages, drafts and voice profile remain yours. SlyOS retains all rights to the software, brand and interface. We claim no ownership over anything you write or send.
Availability and liability
The service is provided as is. We work to keep it available but do not guarantee uninterrupted access. To the extent permitted by law, our liability is limited to the fees you paid in the preceding twelve months.
Changes and contact
We will give notice before material changes take effect. Questions about these terms go to support@belto.world or the contact form.
Access to your device and your messages
SlyOS reads the accounts and devices you connect so that it can draft on your behalf. On macOS the companion application may request Full Disk Access, which macOS requires in order to read local message databases such as Messages. You grant that permission yourself in System Settings, you can withdraw it at any time, and SlyOS uses it only to read the message data described in the Privacy Policy.
You confirm that you are entitled to grant this access and to let SlyOS read the accounts you connect, including where those accounts contain messages from other people. Where the law of your jurisdiction requires the consent of the other party to a communication, obtaining that consent is your responsibility and not ours.
You remain responsible for the security of the device on which the companion runs. We are not responsible for loss arising from a device you do not control, an operating system you have modified, or credentials you have shared.
Drafts, artificial intelligence and your responsibility
SlyOS produces drafts using automated systems, including large language models. Automated output can be wrong, incomplete, out of date, or inappropriate. Nothing SlyOS produces is legal, financial, medical, tax or professional advice, and it is not a substitute for your own judgement.
A draft is not sent until you send it. When you send, you adopt that message as your own and you are its author for every purpose, including as against the recipient and as against any regulator. You are solely responsible for reviewing each draft before sending, for the accuracy of what it says, and for the consequences of sending it.
You accept that SlyOS may misread a conversation, may attribute something to the wrong person, and may generate text that resembles text generated for another user. We give no assurance that output is unique or original.
Third-party services
SlyOS connects to services operated by others, including Google, Apple, Meta, Telegram, LinkedIn, Microsoft and payment providers. Your use of those services is governed by their own terms, and some of them restrict automated access. We are not a party to those agreements and we are not responsible for those services, for their availability, or for any action they take against your account, including suspension or termination.
A provider may change or withdraw access at any time and without notice to us. Where that makes a channel unavailable, we will tell you and adjust your plan, and that is the entire remedy available to you for the loss of that channel.
Fees, billing and taxes
Paid plans are billed in advance on a recurring basis through our payment processor until cancelled. By subscribing you authorise recurring charges to your payment method. Prices are exclusive of taxes, and you are responsible for any sales, use, VAT, GST or similar taxes other than taxes on our income.
We may change prices on notice; a change takes effect at your next renewal, and continuing to use a paid plan after that is acceptance of the new price. If a payment fails we may suspend or downgrade the account.
Cancellation, refunds and termination
You may cancel at any time, effective at the end of the period you have paid for. Fees already paid are non-refundable except where refund is required by law, and we do not refund partial periods, unused allowances, or periods in which you did not use the service.
We may suspend or terminate your account immediately if you breach these terms, if we are required to by law or by a provider, if your use threatens the security or integrity of the service, or if we discontinue the service. On termination your right to use SlyOS ends at once, and you may export your data as described in the Privacy Policy before deletion.
Assumption of risk and waiver
You use SlyOS at your own risk. You understand that the service reads your private communications, that it drafts messages that may be sent to real people, and that errors in that process may cause embarrassment, disputes, missed obligations, damage to relationships or commercial loss.
To the fullest extent permitted by law, you release, waive and discharge Belto Inc., its officers, directors, employees, contractors, agents and investors from every claim, demand, damage, cost and liability of any kind, whether known or unknown, arising from or connected with your use of SlyOS, the content of any message drafted or sent through it, the accuracy of anything it reports to you, or any access it has to your devices or accounts.
You knowingly waive any statutory provision that would otherwise limit the effect of a general release to claims you know of at the time of signing, including, if applicable, section 1542 of the California Civil Code.
Disclaimer of warranties
SLYOS IS PROVIDED “AS IS” AND “AS AVAILABLE”, WITHOUT WARRANTY OF ANY KIND. To the fullest extent permitted by law we disclaim all warranties, express, implied or statutory, including any warranty of merchantability, fitness for a particular purpose, title, non-infringement, accuracy, and any warranty arising from course of dealing or usage of trade.
We do not warrant that the service will be uninterrupted, secure, timely or error-free, that any defect will be corrected, that messages will be read, drafted, delivered or sent, or that anything SlyOS tells you about your own data is complete or correct.
Limitation of liability
TO THE FULLEST EXTENT PERMITTED BY LAW, BELTO INC. WILL NOT BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, EXEMPLARY OR PUNITIVE DAMAGES, OR FOR ANY LOSS OF PROFITS, REVENUE, BUSINESS, GOODWILL, OPPORTUNITY, DATA OR REPUTATION, however caused and on any theory of liability, even if we have been advised of the possibility of such damages.
OUR TOTAL AGGREGATE LIABILITY arising out of or relating to these terms or the service, for all claims combined, will not exceed the greater of the amount you actually paid us in the twelve months immediately before the event giving rise to the claim, or one hundred United States dollars (US$100).
Some jurisdictions do not allow the exclusion of certain warranties or the limitation of certain damages. Where that is so, the exclusions and limitations above apply to the greatest extent the law permits, and nothing in these terms excludes liability for fraud, for fraudulent misrepresentation, or for anything else that cannot lawfully be excluded.
Indemnity
You will defend, indemnify and hold harmless Belto Inc. and its officers, directors, employees, contractors and agents from and against any claim, demand, action, damage, loss, liability, penalty, cost and expense, including reasonable legal fees, arising out of or connected with: your use of SlyOS; any message drafted, sent or not sent through it; your breach of these terms; your breach of any third-party service’s terms; your violation of any law, including any law governing the interception, recording or processing of communications; or your infringement of anyone’s rights.
Governing law and disputes
These terms and any dispute arising out of them are governed by the laws of the State of Delaware, United States, without regard to its conflict of laws rules, and excluding the United Nations Convention on Contracts for the International Sale of Goods.
Any dispute that is not resolved informally within thirty days of written notice will be resolved by final and binding arbitration administered by the American Arbitration Association under its Consumer Arbitration Rules, seated in Wilmington, Delaware, before one arbitrator, in English. Judgment on the award may be entered in any court of competent jurisdiction. Either party may bring an individual claim in small claims court, and either party may seek injunctive relief in court to protect intellectual property or confidential information.
CLASS ACTION WAIVER. Claims may be brought only in your individual capacity, and not as a plaintiff or class member in any purported class, collective, consolidated or representative proceeding. If this waiver is held unenforceable as to a claim, the arbitration agreement does not apply to that claim and it will be heard in the state or federal courts sitting in Delaware, to whose exclusive jurisdiction you consent.
Any claim must be brought within one year of the date it arose, or it is permanently barred, to the extent that limit is permitted by law.
General
If any provision of these terms is held unenforceable, it is severed and the rest remain in force. Our failure to enforce a provision is not a waiver of it. You may not assign these terms; we may assign them to an affiliate or in connection with a merger, acquisition or sale of assets. Neither party is liable for a failure caused by events beyond its reasonable control.
These terms, together with the Privacy Policy, are the entire agreement between you and Belto Inc. about SlyOS and supersede anything said before. Where a short earlier section and a longer later section cover the same subject, the earlier one is a summary and the later one governs. We may update these terms; where a change is material we will give notice in the product or by email, and continuing to use SlyOS after it takes effect is acceptance.