Privacy policy
Last updated November 10, 2026
Volvelle is an intermittent fasting timer for iPhone. This policy explains what happens to your data when you use the app and this website.
The short version: Volvelle has no account and no server of its own. What you log stays on your iPhone. We cannot see it.
Who is responsible
Volvelle is published by INDIGATE LLC (“we”). For any question about this policy or your data, write to contact@indigatellc.com.
Data that stays on your device
Everything you enter in Volvelle is stored locally on your iPhone:
- your fasts (start, end, goal), notes and moods;
- your plans, weekly schedule and reminder settings;
- your weight and water entries, and your goals;
- your preferences (theme, units).
We do not receive this data. It is not sent to us or to anyone else, and it is not synced to iCloud by the app. It may be included in the backups of your iPhone that you manage with Apple.
You can export your fasts as a CSV file, create a backup file, and erase all data from the app settings. Files you export are yours to store or share as you choose.
Apple Health
Connecting Apple Health is optional. If you allow it, Volvelle reads and writes one type of data only: your body weight. It is used to show your weight in the app and to save the weight you enter.
Data from Apple Health stays on your device. We do not use it for advertising or marketing, we do not sell it, and we do not send it to third parties. You can withdraw the permission at any time in the Health app. Volvelle keeps working without it.
Notifications and widgets
Reminders are local notifications scheduled on your iPhone. Widgets and the Live Activity are drawn on your device from your local data. None of this goes through a server.
Purchases
Purchases and subscriptions are processed by Apple with your Apple Account. We never receive your payment details.
To check whether a purchase is active, the app uses Adapty (Adapty Tech Inc.), a service that manages in-app purchases. Adapty receives:
- a random identifier created for your installation;
- purchase information from the App Store (product, dates, status, receipt);
- technical information about the device and the app (model, system version, app version, language, time zone);
- which purchase screen was shown and whether a purchase followed.
In Volvelle, the collection of your IP address and of the advertising identifier (IDFA) by Adapty is turned off, and so is install attribution. This information is not linked to your identity.
Adapty does not receive your fasts, notes, weight, water entries or any data from Apple Health. We do not send it your name or your email address, and Volvelle does not ask for them. Adapty acts on our behalf, under its own privacy policy: adapty.io/privacy.
What Volvelle does not do
- No account, no sign-up.
- No advertising and no advertising identifiers.
- No tracking across other companies’ apps and websites.
- No sale of personal data.
This website
This website uses no cookies and no analytics. Our hosting provider (Railway) keeps short-lived technical logs that can include your IP address, the page requested and your browser type, in order to run and protect the service.
If you write to us by email, we use your address and your message only to reply, and keep the exchange as long as needed to handle your request.
Legal bases and retention
Where the GDPR or a similar law applies, purchase data is processed to perform the contract with you (giving you access to what you bought) and to meet our legal obligations (accounting). Hosting logs are processed for our legitimate interest in keeping the website secure.
Data stored on your device is kept until you delete it or delete the app. Purchase records are kept for as long as accounting and tax rules require.
Your rights
Depending on where you live, you may have the right to access, correct, delete or export your personal data, and to object to or restrict certain processing. Most of your data is on your own device and under your direct control. For purchase data, write to contact@indigatellc.com and we will answer within one month. You can also lodge a complaint with your local data protection authority.
International transfers
Apple, Adapty and Railway may process data in the United States and in other countries. Where required, these transfers rely on appropriate safeguards such as standard contractual clauses.
Children
Volvelle is not intended for children. Fasting is not recommended for people under 18 without medical advice, and we do not knowingly collect data from children.
Changes
If this policy changes, we will update this page and its date. If a change is significant, the app will tell you.