Mast Finance Sàrl — Last updated: 24 February 2026
Mast Finance engages the following third-party subprocessors to provide components of the Service. This page is maintained in accordance with our Data Processing Agreement.
Customers may object to a new or replacement subprocessor on reasonable and documented data protection grounds within 14 days of the relevant update being published on this page, as described in our DPA.
Current Subprocessors
| Subprocessor | Purpose | Data location | Country |
|---|---|---|---|
| Amazon Web Services (AWS) | Cloud infrastructure, hosting, storage, compute, and transactional email delivery (SES) | Switzerland (eu-central-2) for Customer Data; EU (eu-central-1) for email delivery; global edge locations for static assets (CloudFront) | United States (AWS EMEA Sàrl, Luxembourg entity; covered by AWS DPA) |
| Stripe | Payment processing, billing, and subscription management | EU / US (billing contact data only) | United States (certified under EU-US Data Privacy Framework) |
| Infomaniak Network SA | AI-powered assistant — natural language processing for in-app help, financial analysis, and report generation | Switzerland (Geneva) | Switzerland |
Self-Hosted Services (Not Subprocessors)
The following services are self-hosted on Mast Finance's own infrastructure within the AWS Switzerland (Zurich) region. No data is shared with or processed by any third party. These are listed here for transparency only.
| Service | Purpose | Data location |
|---|---|---|
| PostHog (self-hosted) | Product analytics and session replay | Switzerland (eu-central-2) |
| Sentry (self-hosted) | Error tracking and performance monitoring | Switzerland (eu-central-2) |
Changes
This page will be updated before any new subprocessor is engaged. A changelog of changes is maintained below.
| Date | Change |
|---|---|
| 24 February 2026 | Initial publication. |
| 13 April 2026 | Added Infomaniak Network SA as subprocessor for AI assistant features. |
Contact
For questions about our subprocessors, please contact us at contact@mastfinance.io.
Mast Finance Sàrl — Rue Centrale 15, 1003 Lausanne, Switzerland — contact@mastfinance.io