riize Privacy Policy

Last updated: October 18, 2026

riize is an iPhone app that helps you learn to use AI by practicing. This policy explains what information the app collects, why, who else handles it, and what you can do about it. riize is run by Dmytro Zhornyk ("we", "us"). You can reach us at the address in Contact us.

What we collect

Your account

The first time you open the app, it creates an account for you. The account is a random number, not your name. The app keeps a sign-in key on your phone, in Apple's secure Keychain. We store only a scrambled (hashed) copy of that key.

To check that new accounts come from the real riize app on a real iPhone or iPad, the app asks Apple to vouch for it when it creates your account (Apple calls this App Attest). We keep the key that Apple vouched for, and Apple's confirmation, with your account. They don't identify your device or your Apple Account.

Your invite code

While riize is open to invited people only, we keep the invite code you entered and when you entered it, so the lessons work for you and we can see how many people each code brought in.

Your answers when you start

What you do (for example, "I run my own business"), your line of work if you share it, how much you have used AI, and what you would like AI to help with. We use these to pick your starting lessons and examples.

What you write in lessons

• The messages you write to the AI, the AI's answers, and the coach's feedback.
• For "Now try it for real" tasks: the message and answer you paste from your own AI app, and what you say you double-checked.
• For the daily challenge: the answer you pick and, if you try it, the message you write.

Before anything else sees your text, the app's server replaces card numbers, bank account numbers, passwords, email addresses, phone numbers and ID numbers with a note such as "[PHONE NUMBER REMOVED]". It recognizes phone numbers written the US way, with a country code (such as +49), or the way Germany, Ukraine and Mexico write them at home; US Social Security numbers; and tax, social insurance, ID card and passport numbers from Germany, Ukraine and Mexico, and other countries' when you name them ("my passport number is …"). Only the cleaned text is sent to the AI or saved. No check catches everything, so please don't type ID or phone numbers anyway, or other private details, such as health information or someone else's personal information. You can make details up; the lessons work just as well.

Before your first lesson, the app asks whether you agree to send what you write to the AI services named below. Nothing you write goes to an AI until you agree. If the services that receive your messages change, the app asks you again.

Your progress

Lessons you start and finish, how each of your skills is coming along, the days you practice, your streak, milestones you earn, and whether you rated the coach's feedback as helpful or not.

Your time zone

So that a day of practice counts on the right day where you live.

Sign in with Apple or Google (optional)

If you choose "Save my progress", we keep only the account ID that Apple or Google gives us, so you can get your progress back on a new phone. We don't ask Apple or Google for your name, email address or photo. For Apple, we also keep a token that lets us remove riize's access to your Apple account when you delete your riize account.

Your subscription

If you subscribe, we learn from our payment provider whether your subscription is active, which plan it is, whether it is a free trial, and when it renews or ends. Payment is handled by Apple. We never see your card or bank details.

How you use the app

We record events such as "lesson finished" or "paywall shown", with your account number, the screen, and simple values like which lesson it was. These events never include what you wrote or the AI's answers.

Technical information

Like any website or app server, ours sees your device's IP address when the app connects. We use it only for a moment, to limit how many new accounts can be created from one network, and we don't store it. Our server keeps short technical logs and measurements (for example, which request failed and how long the AI took). These contain account and request numbers, never your messages, and are deleted after 30 days.

What stays on your phone

Your first name if you give it, your reminder time, and drafts of messages you haven't sent yet stay on your phone and are never sent to us. Practice reminders are scheduled by your phone; we don't send push notifications.

How we use your information

• To run the lessons: send your message to the AI, show you its answer, and have the coach give you feedback.
• To keep track of your progress, suggest what to practice next, pick your daily challenge, and keep your streak and milestones.
• To give you back your progress on a new phone, if you sign in with Apple or Google.
• To manage your subscription and which lessons are open to you.
• To keep the service working and safe, for example by limiting how much each person can use the AI per day.
• To improve riize. We look at which lessons work, and we read some coach feedback, especially feedback people marked as not helpful, to make the lessons and the coach better. When we keep an example to test the coach against, we remove anything that could identify you.
• To answer you when you contact us, and to meet legal requirements.

We don't sell your information. We don't use it for advertising, and we don't track you across other companies' apps or websites.

Who else handles your information

We use a few service providers to run riize. They handle your information on our behalf, only for the purposes below.

• OpenRouter (United States) passes your cleaned-up messages to the AI models that answer you and that grade your messages for the coach. We ask OpenRouter to use only AI providers that don't keep your messages or use them to train their AI. Today the models come from Z.ai (GLM) and DeepSeek, run by providers that OpenRouter chooses, which may be in the United States or other countries. Before your messages go to any other AI company, we will update this policy and ask for your OK again in the app.
• Hetzner hosts our server and database in Helsinki, Finland (European Union).
• PostHog (United States) stores the app-usage events described above, which never include your messages. We have set PostHog not to keep your IP address, so it doesn't learn where you are.
• RevenueCat (United States) and Apple handle subscriptions and purchases.
• Apple and Google handle sign-in, if you choose it.

We may also share information if the law requires it, to protect people's safety or our rights, or as part of a sale or merger of riize, in which case this policy would continue to apply.

Some of these providers are outside the country where you live, including in the United States. Where the law requires it, we rely on the safeguards these providers offer for international transfers, such as the European Commission's Standard Contractual Clauses.

How long we keep it

• Your account, answers, lessons and progress: for as long as you keep your account.
• When you delete your account, we remove it and everything linked to it from our database right away. Copies in our backups are removed as the backups expire, within 6 months.
• Server logs and measurements: 30 days.
• App-usage events at PostHog are linked only to your random account number. Once your account is deleted, that number no longer leads to anything we hold.

Your choices and rights

• Delete your account in the app: Profile, then Your data, then Delete my account. This deletes your account and everything linked to it. If you subscribed, deleting your account doesn't cancel the subscription; cancel it in your iPhone's Settings under your name, then Subscriptions.
• Sharing with AI: you can stop at any time in the app: Profile, then Your data, then Stop sharing with AI. The lessons need the AI to work, so they pause until you agree again. Your progress stays.
• Reminders are off unless you turn them on, and you can turn them off at any time in the app or in your iPhone's Settings.
• Signing in with Apple or Google is optional. You can sign out in Profile.
• See, correct or get a copy of your information: write to us (see Contact us), and we will answer within one month.

If you live in the European Economic Area, the United Kingdom or Switzerland, you also have the right to object to or limit how we use your information, to move it to another service, and to complain to your data protection authority. We use your information because we need it to provide the app you asked for, because of our legitimate interest in keeping riize safe and improving it, and, for sending what you write to AI services and for reminders, because you agreed. You can take back that agreement at any time, as described above.

If you live in a US state with a privacy law, such as California, you have the right to know what we collect, to see it, to correct it and to delete it, and we won't treat you differently for using these rights. We don't sell your information or share it for targeted advertising.

Children

riize is made for adults. It isn't meant for children under 16, and we don't knowingly collect their information. If you believe a child has used riize, contact us and we will delete the account.

How we protect it

The app talks to our server only over encrypted connections (HTTPS). Sign-in keys are stored scrambled, private details are removed from what you write before it is saved, and only the people who run riize can reach the server and its data. No system is perfectly secure, but we work to keep your information safe.

Changes to this policy

If we change this policy, we will update the date at the top. If a change is important, we will also tell you in the app before it applies.

Contact us

For questions about your privacy or this policy, or to use any of your rights, write to Dmytro Zhornyk at support@riize.ai.