Privacy policy
In short: Signal shows who called a Solana token. To do that it reads the token's contract address from the page you are on and asks our server (usesignal.fun) for that token's calls. Our server logs requests with your IP address. If you turn on FOMO, the extension uses your own fomo.family sign-in, which stays in your browser and is sent only to FOMO. We have no accounts, no analytics, no advertising, and we do not sell data.
1. What the extension reads on token pages
The extension runs only on the supported sites: pump.fun, axiom.trade, bullx.io, gmgn.ai, photon-sol.tinyastro.io, dexscreener.com, dextools.io and padre.gg. On those pages it reads:
- The page's web address, to find a Solana token or pair address in it.
- The web addresses of links on the page (for example links to Solscan or Birdeye), only when the address is not in the page's own web address, to find which token the page is about.
It does not read what you type, your messages, your wallet, your balances or anything else on the page, and it does not run on any other site except fomo.family (section 3) and usesignal.fun (section 5).
2. What is sent to usesignal.fun
To show calls, the extension and the website send these requests to our server at usesignal.fun:
- The token or pair address you are viewing or pasted, to look up its calls and market data.
- A caller's public Pump.fun wallet address, when you open that caller's statistics.
- If paid access is enabled: your Signal license code, which identifies the Solana wallet address that bought access.
As with any website, your browser also sends your IP address and browser type (user agent) with each request. We do not send your browsing history, the full addresses of the pages you visit, or the FOMO data described below.
What our server stores
- Token data: public information about tokens people look up (name, symbol, image, market cap) and their public Pump.fun calls and callers, plus the last time any visitor requested each token. This is not linked to you.
- Server logs (section 6), which do include IP addresses.
- Paid access records, only if paid access is enabled: the Solana wallet address that paid, payment transaction details and the access expiry date. Payments are public on the Solana blockchain.
3. FOMO (optional, off by default)
If you switch FOMO on in the extension, it loads FOMO calls using your own fomo.family sign-in:
- On fomo.family, the extension reads your FOMO session token (stored by fomo.family in your browser) and keeps it in the extension's temporary memory only. It is cleared when you close Chrome, never written to disk and never synced.
- The token, and the token address you are viewing, are sent only to FOMO (
prod-api.fomo.family) to fetch that token's FOMO calls. If FOMO refuses the extension's request, the request is made from your open fomo.family tab instead. - Your FOMO session and the FOMO calls you load are never sent to usesignal.fun or anyone else. When you use the website with the extension installed, the extension passes only the FOMO calls to the page, not your session.
FOMO's handling of data is covered by FOMO's own privacy policy.
4. Solana RPC and other data sources
The extension does not contact Solana RPC providers itself. Our server sends token addresses (and, for paid access, payment
transaction details) to a Solana RPC provider, currently api.mainnet-beta.solana.com, to check that an address is a real
token and to verify payments. It also fetches public calls from Pump.fun and market data from DexScreener using token addresses. None
of these requests include your IP address or any information about you.
Images: token logos and caller avatars are loaded by your browser directly from where they are hosted (for example Pump.fun, DexScreener or IPFS image hosts), so those hosts can see your IP address, as with any image on the web.
5. What is stored in your browser
| Where | What | How long |
|---|---|---|
| Extension storage | Your settings (which sites are on, panel on/off, refresh interval, FOMO on/off), the position and size of the panel and pop-out window, and your Signal license if you have one | Until you change them or remove the extension |
| Extension temporary memory | Your FOMO session token (section 3) | Until you close Chrome |
| usesignal.fun (your browser's local storage) | A list of up to 8 tokens you recently viewed on the website | Until you clear your browser's site data |
None of this is sent to us. Signal does not have bookmarks or saved calls. The website sets no cookies and uses no analytics or tracking. On usesignal.fun, the extension adds a small helper so the website can ask it for FOMO calls (section 3).
6. Server logs and IP addresses
Our server at usesignal.fun keeps two logs:
- Web server log: IP address, date and time, the requested address (which includes the token address), response status, referring page and browser type. Deleted automatically after 14 days.
- Application log: IP address, date and time, and the requested address (which includes the token address). This log has no fixed time limit: older entries are deleted automatically only when the server's log storage reaches its size limit, so they can be kept for several months.
Your IP address is also held briefly in memory to apply rate limits, and discarded within minutes. We use logs only to keep the service running, fix problems, and prevent abuse. We do not use them to build profiles or for advertising.
7. Why we use data and who receives it
- We use data only to show token calls and market data, provide paid access when it is enabled, and keep the service secure and working.
- Who receives it: our server (usesignal.fun, hosted on a rented virtual server in the United States); FOMO, only for FOMO requests if you turn FOMO on; and image hosts, as described in section 4. Pump.fun, DexScreener and the Solana RPC provider receive token addresses from our server, not information about you.
- We do not sell data, share it for advertising, or use it to decide creditworthiness or lending.
- We may disclose information if required by law.
8. Your choices and deleting data
- Turn FOMO off in the extension at any time; your FOMO session is also cleared whenever you close Chrome.
- Remove the extension to delete everything it stored in your browser. Clear usesignal.fun's site data to delete the website's recently-viewed list.
- To ask about, or request deletion of, log entries or paid-access records linked to your IP address or wallet address, email us at the address below with the IP address or wallet address and approximate dates. We will reply within 30 days.
9. Children
Signal is not intended for anyone under 18.
10. Changes
If we change how Signal handles data, we will update this page and its effective date before the change takes effect.
11. Contact
Privacy questions and requests: privacy@usesignal.fun