Terms of service
Effective September 11, 2026. Replaces the prior terms dated August 17, 2026.
Operator: Argyle Holdings LLC, d/b/a Hindsight ("Hindsight," "we," "us")
Contact: support@hindsightmail.app
Support: support@hindsightmail.app
These Terms govern your use of the Hindsight website, waitlist, desktop application, and related services (the "Service"). By using the Service, you agree to these Terms and our Privacy Policy. If you do not agree, do not use the Service.
1. What Hindsight is
Hindsight is a desktop mail, calendar, and tasks client. Your mail and calendar data are provided by your mail provider (for example Microsoft 365, Google, or an IMAP/CalDAV host), not by us. The app syncs that data to a local database on your computer.
Hindsight is not affiliated with, endorsed by, or sponsored by Microsoft Corporation, Google LLC, or any other mail provider. Outlook, Microsoft 365, and related names are trademarks of their owners.
2. Eligibility and accounts
You must be at least 16 years old (or the age of digital consent in your country, if higher) and able to form a binding contract. You are responsible for your account credentials and for activity under your account. Provide accurate information and keep your email reachable for billing and security notices.
3. License to use the app
Subject to these Terms and an active trial or paid subscription (where required), we grant you a limited, personal, non-exclusive, non-transferable, revocable license to install and use the Hindsight desktop application on computers you own or control, for your own individual or internal business use.
You may not:
- reverse engineer, decompile, or attempt to extract source code except to the extent applicable law allows;
- circumvent licensing, trial limits, or entitlement checks;
- redistribute, sublicense, rent, or publicly host application builds;
- remove proprietary notices; or
- use the Service to violate law or these Terms.
We and our licensors retain all right, title, and interest in the Service, including software, branding, and documentation. These Terms do not transfer ownership of any intellectual property.
4. Waitlist
Signing up for the waitlist only means we may email you about availability. It is not a purchase, reservation of a particular price, or guarantee of a launch date or feature set.
5. Trial and subscription
- New accounts may receive a 30-day free trial with features enabled as we describe at signup. No payment method is required to start the trial unless we clearly say otherwise at signup.
- When a trial ends without a subscription, the app may enter read-only mode: previously synced local data can remain accessible, but syncing and sending may be disabled until you subscribe.
- Paid plans renew automatically (monthly or yearly) until you cancel. Cancel anytime from your account page; access continues through the end of the paid period.
- Payments are processed by Paddle.com as merchant of record. Your purchase is also subject to Paddle's buyer terms and privacy policy.
- Prices may change. For renewals at a new price, we will give notice at least 30 days in advance (email to your account address is enough).
- Device limits, if any, will be stated on the pricing or account page. Unless stated otherwise, the license is for reasonable use on devices you own or control under one account — not for sharing credentials across an organization as a substitute for seats we sell later.
Refunds are described in our Refund policy.
6. Acceptable use
You agree not to:
- use Hindsight to send spam, malware, or unlawful content;
- probe, abuse, or disrupt our licensing, auth, or update systems;
- misrepresent your identity or affiliation with us or any provider; or
- use the Service in violation of your mail provider's terms or applicable law (including export controls).
7. Your data
Mail, calendar, contacts, and tasks synced by the app live on your device and remain yours. We claim no ownership of that content. Our handling of account and site data is described in the Privacy Policy. You are responsible for backups of local data and for complying with rules that apply to content in your accounts (employment, confidentiality, etc.).
8. Third-party services
The Service depends on third parties (mail providers, Clerk, Paddle, hosting, and others). We do not control their uptime, APIs, or policies. Outages, API changes, or account lockouts at a provider may limit Hindsight without that being a breach by us.
9. Disclaimer of warranties
THE SERVICE IS PROVIDED "AS IS" AND "AS AVAILABLE." TO THE MAXIMUM EXTENT PERMITTED BY LAW, WE DISCLAIM ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT. WE DO NOT WARRANT THAT THE APP WILL BE ERROR-FREE, UNINTERRUPTED, OR THAT LOCAL DATA WILL NEVER BE LOST.
Some jurisdictions do not allow certain disclaimers; in those places, the disclaimer applies to the fullest extent allowed.
10. Limitation of liability
TO THE MAXIMUM EXTENT PERMITTED BY LAW, HINDSIGHT AND ITS OFFICERS, DIRECTORS, AND SUPPLIERS WILL NOT BE LIABLE FOR INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, OR PUNITIVE DAMAGES, OR FOR LOST PROFITS, REVENUE, DATA, OR GOODWILL, WHETHER BASED IN CONTRACT, TORT, OR OTHERWISE, EVEN IF ADVISED OF THE POSSIBILITY.
OUR TOTAL LIABILITY FOR ANY CLAIM ARISING OUT OF OR RELATING TO THE SERVICE IS LIMITED TO THE GREATER OF (A) THE AMOUNTS YOU PAID US FOR THE SERVICE IN THE 12 MONTHS BEFORE THE CLAIM OR (B) US $50.
These limits do not apply to liability that cannot be limited under applicable law (for example, certain consumer rights, or liability for death or personal injury caused by negligence where such limits are forbidden).
We are not liable for data loss caused by your mail provider, your hardware or OS, your deletion of local data, or third-party outages.
11. Indemnity
If you use the Service for a business, you will defend and indemnify Hindsight against claims arising from your content, your misuse of the Service, or your violation of these Terms or third-party rights, except to the extent caused by our willful misconduct.
12. Suspension and termination
You may stop using the Service and request account deletion at any time. We may suspend or terminate access if you materially breach these Terms, create risk of harm or fraud, or if we discontinue the Service. If we discontinue the Service for convenience, we will refund prepaid unused subscription time on a prorated basis where required by law or as we reasonably determine. If we terminate for fraud or abuse, unused fees may be forfeited to the extent allowed by law.
On termination, your license ends. Local data on your machines remains yours to delete or export as the app allows; we do not keep your mail on our servers.
13. Changes to the Service or Terms
We may modify features, trial length, or these Terms. For material Term changes, we will post an updated version and notify account holders by email where required. If you continue using the Service after the effective date, you accept the updated Terms, except where additional consent is required by law. If you do not agree, cancel and stop using the Service.
14. Governing law and disputes
These Terms are governed by the laws of the Commonwealth of Pennsylvania, excluding conflict-of-law rules. State or federal courts located in Cambria County, Pennsylvania (or the federal district encompassing it) will have exclusive jurisdiction, except that:
- consumers in the EEA/UK may bring claims in their country of residence and enjoy mandatory consumer protections that cannot be waived; and
- either party may seek injunctive relief in any competent court for IP or unauthorized access claims.
15. Miscellaneous
These Terms plus the Privacy Policy and Refund policy are the entire agreement for the Service. If a provision is unenforceable, the rest remains. Failure to enforce a provision is not a waiver. You may not assign these Terms without our consent; we may assign them in connection with a merger or sale of assets. Notices to you may be sent to your account email.
16. Contact
Legal: support@hindsightmail.app
Support: support@hindsightmail.app