Tiedbook · Operated by MRSLM Group LLC Last updated: October 20, 2026
MRSLM Group LLC, doing business as Tiedbook, uses the third-party service providers ("sub-processors") below. Each one processes personal information only to provide its service to us, under a written agreement that includes confidentiality, security and, where required, data-protection terms (including Standard Contractual Clauses for international transfers). See our Privacy Policy for more detail.
1. Active sub-processors
| Sub-processor | Purpose | Data involved | Processing location |
|---|---|---|---|
| Hostinger | Virtual private server that hosts the Tiedbook application and its self-hosted PostgreSQL database; domain registration and DNS | All Customer Data and account data stored in the Service; DNS queries | Boston, Massachusetts, USA (VPS data center) |
| Stripe (Stripe, Inc. and affiliates) | Payment processing, subscription billing, invoicing, fraud prevention, and the customer billing portal | Name, email, billing address, payment card details (held by Stripe, not us), transaction history | USA and other countries where Stripe operates |
2. Planned sub-processors (used only if enabled)
These are not active today. We will move a provider to the table above, and update the "Last updated" date, before it begins processing personal information. Analytics and advertising providers in this table are not used at launch. Where a provider would set non-essential cookies, it will run only after this page is updated and, where the law requires, only with your consent (see the Cookie Policy).
| Sub-processor | Purpose | Data involved | Processing location |
|---|---|---|---|
| SMTP or Resend (Resend, Inc., if that provider is the one configured) | Sending transactional email such as sign-in links, renewal reminders and notices, only when mail is configured. Card receipts are sent by Stripe. | Email address, name, email content | The provider's region, only when this option is turned on |
| Sentry (Functional Software, Inc.) | Error tracking and diagnostics, only if enabled | Technical error data, IP address, browser and device information, user ID | Region is chosen only if this option is turned on |
| PostHog (PostHog, Inc.) | Product analytics, only if enabled and only with consent | Usage events, pseudonymous identifiers, IP address, device information | Region is chosen only if this option is turned on. Not used at launch |
| Supabase (Supabase, Inc.) | Managed database and authentication, only if enabled | All Customer Data and account data | Region is chosen only if this option is turned on |
| Google (Google LLC) — Google Ads | Advertising and conversion measurement, only with your consent where required | Cookie identifiers, IP address, conversion events (never Trade Data, notes or API keys) | USA and other countries where Google operates |
3. Services you choose to connect
These are not our sub-processors. They are independent services that you connect, and they handle your data under their own terms.
| Service | When data is sent | What is sent |
|---|---|---|
| TopstepX / ProjectX | Only if you connect the optional read-only sync with your own API key | Your API key and read-only requests to retrieve your account and trade data |
4. Changes and notifications
We will update this page before adding or replacing a sub-processor. If you would like to be notified of changes by email, write to legal@tiedbook.com with the subject "Sub-processor updates." If you have a reasonable data-protection objection to a new sub-processor, tell us; if we cannot address it, you may cancel and receive a pro-rata refund of any prepaid fees for the unused period.
Contact: legal@tiedbook.com
Related: Privacy Policy · Security · Cookie Policy