What Nelo keeps about you
Nelo keeps what it needs to check homes for you and nothing for anyone else. In plain words: what we keep, who sees it, how long, and how to have it deleted.
Nelo is run by Onyx Ventures SL, Calle Nosquera 12, 29008 Málaga, Spain. Questions and requests: support@onyxventur.es
What we keep
- Your account
- Your email, your name if you give it, how and when you last signed in, and when you were last on Nelo.
- Your search
- What you tell Nelo about yourself (your answers in your own words, budget, household, tax residence, how you'll pay, places that matter to you), the homes on your list with their checks and reports, your reactions and notes, and the photos from your visits.
- Documents about a home
- A Nota Simple or a seller's name you add is kept with that home. A Nota Simple names the owners, so it holds other people's data: it is used only for your check.
- If you link WhatsApp: your number, the messages and photos you send Nelo, and its replies.
- Asking for a local agent
- Only if you ask: your name, email, phone, message and the home, with the consent you ticked.
- Without an account
- On "What's this building?": a random device id in a cookie, your IP address and the spots you looked at, to count the free looks.
Who sees it
- People you invite
- Co-buyers see and change everything in the search. Family see the homes, your answers, everyone's reactions and notes. Advisors see the homes and reports, never your answers, reactions or notes.
- A read-only link
- Anyone with a link you made sees that home's facts, checks and report (including owner names from a Nota Simple), and your name as the sender. Never your reactions, notes or answers. Close the link and it stops working.
- Nelo support
- To help you, we can open your search, read-only unless you ask us to change something. Every time is written in your search's access log.
- Estate agents
- Only when you ask for an introduction and tick the box saying we may. Never sold, never used for ads.
Services that handle it for us
- Fly.io
- Runs Nelo and stores everything above, on servers in Frankfurt.
- Anthropic
- Its AI reads adverts, holds the conversation about what you're looking for, writes the summaries for you and searches the web for the same advert elsewhere. It receives the advert, your answers and the facts it needs for that.
- Its AI looks at photos: the advert's, your visit photos with the note you wrote, and photos you send on WhatsApp. Also: Google sign-in if you use it, the fonts this site loads, and dictation in Chrome if you speak instead of typing.
- Resend
- Sends the sign-in codes: it gets your email and the code.
- Meta
- Carries the WhatsApp messages, if you link WhatsApp.
- Public records and maps
- Catastro, OpenStreetMap, the flood, fire and weather services and the Junta de Andalucía get addresses, references and map points, never who is asking. A place you name (say, a relative's address) is looked up on OpenStreetMap.
- Where it is
- Nelo is run from Spain, and your data is stored on Fly.io's servers in Frankfurt, Germany. The AI services we use (today Anthropic and Google) may process what they're sent outside the EU, mostly in the United States. So may Resend, Meta and Google sign-in.
What we don't do
- No tracking
- No advertising, no analytics, no tracking cookies. We don't sell or rent anyone's data.
How long
- Sign-in codes: 10 minutes, and only a scrambled copy.
- Free looks without an account: 30 days.
- The count of new homes checked on a free account (3 a day): one day.
- Everything else: while your account exists. Ask, and we delete it.
Your rights
Email support@onyxventur.es from the address you use on Nelo to get a copy of your data, correct it, have it deleted, or object to how we use it. We answer within a month. Deleting your account removes your search, homes, photos and chats; a search you share with others stays theirs, without you. You can also complain to Spain's data protection authority, the AEPD, or the one where you live.
The browser extension
On the property portals it supports, it sends Nelo the advert you're looking at (to show how it fits you) and, when you sync, the adverts in your favourites. Nothing from any other site.
Cookies
Only the ones Nelo needs to work:
- nelo_session
- Keeps you signed in, for a year or until you sign out.
- nelo_purchase
- Which search you're looking at, if you're in several.
- nelo_device
- Counts free looks without an account. A random id.
- nelo-lang
- The language you picked.
- nelo_google_state
- Ten minutes, while you sign in with Google.
- nelo_support
- Only on Nelo staff's own browser, while helping someone.
Updated 9 November 2026. See also how Nelo makes money.