Privacy Policy

Solon holds your investment positions and your private reasoning about them, which is sensitive. We collect what the product needs and nothing more, we do not sell it, and we do not show it to anyone else. The parts worth knowing: your thesis text is sent to an AI model provider so it can be drafted and graded, and voice notes are sent to a transcription provider. Both are described below.

Account. Your email address, used to sign you in and to reach you. You sign in with Google, or with an email and password. A password is stored only as a hash by our authentication provider and is never visible to us.

Your portfolio. The tickers, share counts, and cost bases you enter or import, plus everything you write or dictate: thesis text, claims, price targets, exit levels, and chat messages.

Usage. Product analytics about which features are used and when, and error reports. These deliberately exclude money: no position sizes, prices, cost bases, or portfolio values are sent to our analytics provider.

We do not ask for or store brokerage credentials, bank details, government identifiers, or payment card numbers. When you link a brokerage, the connection is read-only and the login happens with our brokerage-connectivity provider, never here: Solon cannot place an order or move money, and never sees your brokerage password. If you upload a positions file instead, its contents are sent to us to be read, and we keep only the ticker, quantity, and cost basis you confirm.

We use third parties to run the service. Each receives only what its job requires.

Model providers (AI). To draft a thesis, grade claims against news, or answer a chat question, we send the relevant thesis text, the tickers you hold, and your claim grades and target weights to a language model provider. This is the most sensitive transmission we make, which is why it is named first. We do not send your email address with it, and we do not use your content to train models.

Voice transcription. If you dictate, the audio recording is sent to a speech- to-text provider and the returned text is stored with your thesis.

Market data. To fetch prices, fundamentals, news, and earnings dates we send only ticker symbols. These providers never receive your holdings, sizes, or identity.

Infrastructure. A hosting provider runs the app, a managed database stores your data, and an email provider sends alerts to your address.

Analytics. A product analytics provider receives feature-usage events and errors, without financial values.

We choose processors for security and reliability, hold each to its own confidentiality and data-protection terms, and give none of them the right to use your content for their own purposes. For the current list of the specific companies in each category above, write to help@solon.run.

Your data is stored in a managed database, encrypted in transit. Access from the application is scoped to your own account, and database-level rules prevent one signed-in user from reading another's rows.

We keep encrypted backups in private storage so an account can be recovered after a mistake. Backups are retained for 30 days and then deleted.

We keep your portfolio for as long as your account exists, because the product's whole purpose is comparing what you believed then against what is true now. Delete your account and we delete your data from the live database promptly, and from backups within 30 days as those expire.

You can view and edit everything in your portfolio at any time in the app. You can ask us for a copy of your data, for corrections, or for deletion by writing to help@solon.run. Depending on where you live you may have further rights over your personal data, including the right to complain to a regulator.

Voice input is optional. Typing is always available, and never sends audio anywhere.

Every email we send carries an unsubscribe link, and the same link is in the List-Unsubscribe header your mail client reads, so your client can offer its own one-click opt out. The link is signed and works on its own: no account, no password, and nobody else can use it to unsubscribe you.

We use cookies to keep you signed in, to remember basic interface state such as when you last visited so the app can show what changed since, and to count visits to our public pages. That last one is a first-party random identifier: it lets us tell one person visiting twice from two people visiting once, it carries nothing about who you are, and no other company reads it. We do not use advertising cookies and we do not track you across other websites. To opt out of counting, add ?noph=1 to any Solon address; the choice is remembered until you undo it with ?noph=0.

Solon is not for anyone under 18 and we do not knowingly collect their data.

If we materially change how we handle your data, we will ask you to accept the new version before you continue. This policy is operated by Solon Finance; questions go to help@solon.run.