Terms of Service
Effective: July 9, 2026 · This is a pre-launch draft, finalized after legal review.
1. Overview
These Terms govern your use of MessageFlow (the “Service”), a software platform that lets businesses send and manage text messages through mobile phones (devices) they connect. By creating an account you agree to these Terms.
2. Definitions
- “Device” means an individual sending device (SIM) you connect to the Service; the sender number is fixed to each device’s SIM number.
- “Workspace” means the dedicated management space provided to a customer.
3. Eligibility & Account
You must be able to form a binding contract and comply with all laws applicable to you. Business accounts may be subject to verification. You are responsible for activity under your account and for keeping credentials secure.
4. The Service
- Sending occurs independently from each phone you connect and is subject to your mobile carrier’s plans and policies.
- We may modify or improve the Service; material changes will be announced in advance where reasonably practicable.
5. Acceptable Use & Messaging Compliance
- You must obtain prior consent from recipients where required and honor opt-out (unsubscribe) requests promptly.
- You are solely responsible for compliance with laws applicable to your messaging, which may include the US TCPA/CTIA, Canada’s CASL, the EU GDPR/ePrivacy, and local telecom rules. You must not send unlawful, deceptive, or unsolicited bulk messages.
- Using personal SIM devices for high-volume marketing may violate carrier terms and local law; such use is gated and may be restricted.
6. Fees & Payment
Paid plans are billed as a subscription based on the number of contracted devices. For purchases on messageflow.io, payments are processed by our Merchant of Record, Lemon Squeezy. You remain responsible for carrier message charges (including international SMS fees) incurred by your connected phones.
6A. Cancellations & Refunds
- Subscriptions renew automatically per the billing cycle (monthly/annual) you choose. You may cancel at any time; on cancellation your subscription does not renew and no further charge occurs, and you keep access until the end of the current billing period.
- Changes that reduce your usage (downgrading a plan, decreasing device count) take effect on your next billing date; you keep your current capacity until then.
- Refunds for purchases on messageflow.io are handled by Lemon Squeezy (our Merchant of Record) under its Buyer Terms and are governed by our Refund & Cancellation Policy, which provides a new-customer guarantee and remedies for delivery failures and billing errors. Duplicate charges and clear billing errors are refunded in full.
7. Suspension & Termination
We may suspend or terminate access, without prior notice, if you violate these Terms or applicable law, or if spam/unlawful sending is detected. You may stop using and terminate the Service at any time.
8. Disclaimers & Limitation of Liability
The Service is provided “as is.” We are not liable for delays or failures caused by carrier policies, device/device conditions, or other factors beyond our reasonable control. To the maximum extent permitted by law, we are not liable for indirect, special, or consequential damages.
9. Governing Law
These Terms are governed by the laws stated in your order or, absent that, the laws of the Republic of Korea, without regard to conflict-of-laws rules, unless a mandatory local law requires otherwise.
12. Company information
The Big Shot Co., Ltd. · Business Reg. No. 110-81-92150 · Corp. Reg. No. 110111-4435651
Address 402, 20 Hakdong-ro 24-gil, Gangnam-gu, Seoul, Republic of Korea