Last updated 25 July 2026
Aelyx is currently operated as a sole trader — it is not yet incorporated as a company, so a company number will be added here once it is. The operator is the data controller for the limited personal data described below. Contact: hello@aelyx.app.
Everything you enter about your finances — incomes, savings, ages, goals, and every scenario — is stored locally in your own web browser (using IndexedDB, with a localStorage fallback). It is not sent to or stored on our servers. If you clear your browser's data for this site, or use a different device or browser, that plan won't be there. You can export a backup file yourself from within the app.
Aelyx includes an optional "ask the model" chat. If — and only if — you use it, your typed messages and the key editable figures of the plan you're viewing (such as ages, salaries, spending, housing and children details) are sent to our server and passed to a third-party AI service (currently Cloudflare Workers AI) to generate a reply. This is processed to answer your question in the moment and is not stored on our servers. If you never open the chat, none of your plan data leaves your device.
The AI chat currently requires you to sign in (via Cloudflare Access). Your email address is used for one purpose only: a daily counter of how many chat messages you've sent, so the service can't be abused. That counter is keyed to your email and the date, automatically deletes at the end of each day, and is never linked to the content of your plan or your messages. We do not build a profile from it. The planner itself needs no sign-in.
We do not use analytics, advertising, or third-party tracking of any kind, and we don't set tracking cookies. Fonts are served from our own site, not a third party. The only cookies involved are the essential ones the sign-in provider (Cloudflare Access) needs if you use the AI chat.
You don't need an account to use the planner. We don't sell, rent, or share your data with anyone for marketing, and there's no advertising in the app.
Because your plan data lives on your device, you already control it directly — you can view, change, export, or delete it at any time. Under UK data-protection law you also have rights of access, correction, erasure, restriction, and objection over the limited data we process (the daily chat counter). To exercise them, or to complain, contact us at hello@aelyx.app. You can also complain to the UK Information Commissioner's Office (ICO) at ico.org.uk.
Aelyx is intended for adults planning their own finances and is not directed at children under 18.
Where we process the limited data above, our lawful bases under UK GDPR are our legitimate interests in providing and protecting the service (running the chat and preventing abuse) and, where relevant, performance of our terms with you.
We may update this policy as the service evolves; the "last updated" date above will change. This is a working policy for the current build and will be reviewed by a qualified professional before public launch.