Privacy Policy
Zinumi keeps your sleep data on your iPhone. We do not run accounts, servers that receive your sleep data, analytics, or ads.
Who we are
This policy covers the Zinumi iOS app (the "App"), published by Max Martinez, Carrera 55 # 100-51, Piso 13, Barranquilla, Colombia ("we", "us"). Questions go to support@zinumi.com.
Effective date: October 9, 2026.
What the App stores, and where
Everything below is stored only on your device, in the App's private storage and its shared App Group. We never receive it.
| Data | Why the App uses it | Where it lives |
|---|---|---|
| Onboarding answers: age range, usual sleep length, energy, activity level, time to fall asleep, wake time, chronotype | To suggest a personal sleep goal and bedtime | Your device only |
| Sleep schedule and sleep goal | To time reminders, Sleep Mode and the character's mood | Your device only |
| Sleep sessions: start and end times, scene and sound chosen | To check whether you met your goal and show progress | Your device only |
| App settings and preferences | To remember your choices | Your device only |
| Apps and categories you choose to block | To block them during Sleep Mode | Your device only, as opaque Apple tokens |
The App does not collect your name, email, phone number, location, contacts, photos, health records, advertising identifier, or device identifiers. It does not read Apple Health. It does not track you across other companies' apps or websites.
Reminders are local notifications scheduled on your device. No push notification service is used.
If you delete the App, this data is deleted with it. Data may be included in your own iCloud or device backups, which Apple handles under its privacy policy.
Screen Time and app blocking
Zinumi uses Apple's Screen Time APIs (Family Controls) to block apps during Sleep Mode, only after you grant permission. When you pick apps, Apple gives the App opaque tokens. These tokens do not reveal which apps you chose or how you use them, to the App or to us. They never leave your device. You can revoke access at any time in iOS Settings > Screen Time.
Purchases and subscriptions
Purchases are processed by Apple through the App Store. We never see your payment details, Apple ID, or name. Apple tells the App only whether your subscription or lifetime purchase is active, so it can unlock features.
We use RevenueCat, Inc. to verify purchases and manage subscription status. RevenueCat receives an anonymous app user ID, your purchase receipts and transaction history, device type, OS version, country/region, and IP address. It does not receive your sleep data or onboarding answers. See RevenueCat's privacy policy.
App updates
The App checks Expo's update service (u.expo.dev, run by 650 Industries, Inc., known as Expo) when it opens, to download bug fixes and small improvements without a new App Store release. Each check sends the App's version, your platform (iOS), and a random installation identifier that Expo uses only to deliver the right update. Like any web request, it also carries your IP address. It does not include your sleep data, onboarding answers, purchases, or anything that identifies you, and it is not used for tracking or advertising. See Expo's privacy policy.
Who we share data with
We do not sell or share your personal information, and we do not use it for advertising. The only third parties involved are:
- Apple, for the App Store, notifications and Screen Time.
- RevenueCat, for purchases only.
- Expo, to deliver app updates.
- Google Workspace, which hosts our email, if you write to us.
- Cloudflare, which hosts zinumi.com.
When you email us
If you write to support@zinumi.com, we receive your email address, your name if you include it, and whatever you send. We use it only to answer you and keep it as long as needed for that. Our email is hosted by Google Workspace. Ask us and we will delete the conversation.
Our website
zinumi.com is hosted by Cloudflare. It sets no cookies and runs no ads, analytics or tracking scripts. Like any web host, Cloudflare processes your IP address and basic request details (such as browser type and the page requested) to deliver the site and protect it from abuse. See Cloudflare's privacy policy.
Your choices and rights
Because your data stays on your device, you control it directly: edit it in the App, or delete the App to erase it. You can turn off notifications and Screen Time access in iOS Settings.
Depending on where you live (for example the EU, UK, or California), you have rights to access, correct, delete, or port your personal data. Apart from emails you send us, we hold no personal data about you; email support@zinumi.com with any request and we will respond within 30 days. We can also ask RevenueCat to delete purchase records linked to your anonymous ID.
Colombia (Habeas Data)
For users in Colombia, this policy is our data processing policy under Law 1581 of 2012 and Decree 1377 of 2013. The data controller (responsable del tratamiento) is Max Martinez, Carrera 55 # 100-51, Piso 13, Barranquilla, Colombia, support@zinumi.com.
- Purposes. We use personal data only for the purposes described above: answering support emails, managing purchases through RevenueCat, and delivering app updates through Expo. Sleep data stays on your device and is never sent to us.
- Your rights. You can know, update and correct your data; ask for proof of your authorization; be told how your data is used; revoke your authorization or ask us to delete your data; access it free of charge; and file complaints with the Superintendencia de Industria y Comercio (SIC).
- How to make a request. Email support@zinumi.com with your name, what you are asking for, and how to reach you. We answer questions (consultas) within 10 business days and claims (reclamos) within 15 business days, as the law requires. If we need more time, we will tell you why, within the limits the law allows.
- Transfers. Our providers (Apple, RevenueCat, Expo, Google and Cloudflare) may process data outside Colombia, including in the United States. By using the App or emailing us, you authorize these transfers for the purposes above.
Health and medical disclaimer
Zinumi is a wellness app, not a medical device. Sleep goals are general suggestions based on public sleep guidelines, not medical advice.
Children
The App is not directed to children under 13, or the older age your country requires (for example 16 in some EU countries), and we do not knowingly collect their personal information.
Security
Data is protected by iOS app sandboxing and device encryption. No method is perfectly secure, so please keep your device passcode enabled.
International users
We are based in Colombia. Since we do not receive your sleep data, it is not transferred to us. Purchase data handled by RevenueCat, update checks handled by Expo, emails hosted by Google, and website requests handled by Cloudflare may be processed in the United States and other countries, under those providers' safeguards.
Changes to this policy
We will post updates on this page and change the effective date. Significant changes will also be noted in the App.
Contact
Max Martinez, Carrera 55 # 100-51, Piso 13, Barranquilla, Colombia, support@zinumi.com.