Privacy Policy — Volta

The short version

Volta is local-first. Your wheels, positions, cash and settings are stored only on your device. There is no account to create to use the app, no analytics, no advertising and no trackers in the app. On this website I only count clicks on the App Store buttons, without identifying anyone. Two features can send data off your device, and both are optional and off until you turn them on: cloud sync and live prices. With the annual subscription, the app also sends the Apple receipt to our server, for the invite codes — and that server doesn't know who you are.

What stays on your device

• Everything you enter in the app: wheels, options legs, share lots, deposits, prices, notes and settings — kept in a file on your device, protected by iOS file encryption.
• Any market-data API key you choose to add is stored in the device Keychain, not in plain settings.
• If you set an app lock, Face ID / Touch ID are handled entirely by iOS; biometric data never reaches us.

What leaves your device — only when you choose

• Cloud sync (optional). If you sign in with your email to sync across devices, we send you a one-time code by email and store a copy of your app data (wheels, positions, deposits) on our backend provider, Supabase, so your other devices can load it. It is tied to your account, protected by per-user access rules, and used only to sync — never sold or shared. Without signing in, none of this happens and the app stays fully local. You can sign out and delete this cloud copy at any time.
• Live prices (optional). Prices and 24-hour charts are a Pro feature. When enabled, the app sends the ticker symbols you track to our Supabase Edge Function, which queries market-data providers (such as Finnhub and Twelve Data) and returns price quotes. We send only the ticker symbols — never quantities, values or other portfolio details. Those requests are processed under our privacy terms and the provider's privacy policy. If you don't enable live prices, you enter prices by hand and nothing leaves your device.
• Automatic backups to iCloud (optional). You can enable automatic daily backups to your iCloud Drive (in the Volta folder). These files are stored entirely in your own iCloud account, protected by Apple's iCloud security — we have no access to them. You control whether backups are enabled, and you can view or restore from them at any time in the app's Advanced settings.
• Purchases. Volta Pro subscriptions are processed by Apple through the App Store. We never see your payment details. With the annual subscription, the app sends our server the receipt signed by Apple, for the invite codes — see below.
• Manual backups. Any backup file you export goes to your own iCloud, device storage, or wherever you choose to save it. It is yours; we have no access.

Invite codes (annual plan)

Each annual subscription has its own invite code. When someone subscribes to the annual plan with your code, your next renewal costs less; their price stays the same. That's all our server is for: keeping the codes and knowing which subscription each one belongs to. This is everything it knows.

• When. Invite codes only exist with the annual subscription (including the free trial period). Without it, the app never talks to this server. The monthly subscription has no invite code.
• What the app sends. The annual subscription's receipt, signed by Apple — which contains the subscription number Apple assigned, the product, the purchase and renewal dates, and the environment (production or sandbox) — and, if you entered it, the code of the person who invited you. That receipt does not contain your name, your email, your Apple account or payment details, and the app does not send them.
• What we store. That subscription number, your invite code (generated by us, at random), the code of the person who invited you, the subscription's status, dates and amounts paid, and a log of the notifications Apple sends us about it (renewal, expiration, refund). Apple sends those notifications with the same numbers — never with personal data.
• What for. To know which subscription each invite code belongs to and apply the renewal discount, and to confirm with Apple, in the days before each renewal, that the subscription is still active. Nothing else.
• What we never store. Name, email, Apple account, IP address, payment details. There is no account and no sign-in on this server: it doesn't know who you are. Cloud sync, if you use it, runs with another provider (Supabase) and is never linked to your invite codes. The IP address is used only in memory, to block abuse, and is never logged.
• Where. On Cloudflare, with the database in Western Europe.
• Who sees what. You can see the invite codes of the people you invited, and whoever invited you can see your invite code. Codes only — never names. We do not share this data with anyone besides Apple, who already has it; we do not sell it, it is never used for advertising, and it is never used to train AI models.
• Keeping and deleting. The records stay for as long as the annual subscription exists: they are what calculate your discount, and the app re-creates them every time it opens while the subscription is active. Once it ends, you can ask us to delete them — write to us with your invite code. Without a request, we delete them ourselves: at the latest 12 months after the subscription ends. Test invite codes (TestFlight) are kept in a separate ledger, marked "Sandbox", and never mix with the real ones.

Support

If you email email, we receive your email address and whatever you write. We use it only to reply, and we do not add you to any list.

Not investment advice

Volta is a planning and tracking tool. It does not provide investment advice or execute trades, and any prices shown may be delayed — confirm figures with your broker before acting.

This website

This site sets no cookies and runs no tracking scripts. It is served by our hosting provider, which may keep standard technical logs (such as IP addresses) to operate the service.

When you tap an App Store button on this site, the link first goes through alpinelynx.ch/go/ and then opens the App Store. I count these clicks to know which pages help people find the apps. For each click I keep only the app, the page of alpinelynx.ch it came from and the date and time: no IP address, no cookie, no browser details, nothing that identifies you. These records are deleted automatically after three months; after that I keep only daily totals.

Your rights

Under the Swiss Federal Act on Data Protection (revDSG) and the GDPR you have rights of access, correction and deletion. Your data lives on your device, so you exercise them directly in the app: edit or delete anything at any time, export a backup, or delete the app to remove everything local. If you used cloud sync, sign in and delete the cloud copy, or write to us and we will remove it. Invite codes are kept on our server: to delete them, write to us with your invite code after the annual subscription has ended.

Children

Volta is a tool for investors and is not directed at children under 13.

Changes

If this policy changes, the new version will be published on this page with a new effective date. Material changes will be highlighted in the app's release notes.

Contact

Alpine Lynx · Switzerland · email