Russio

Terms of use

Version 2026-10-07, effective October 7, 2026

Earlier versions: September 29, 2026, June 24, 2026

In brief: these terms are the agreement between you and IOCODO LLC for using Russio, a course in Russian that starts from the Cyrillic alphabet. You accept them in the app.

The alphabet and the A1 level are free. Russio Pro opens the levels from A2 to C2. You buy it in the App Store or on Google Play, as a monthly or annual subscription that renews automatically until you cancel it in the store, or as the lifetime plan, a single payment that unlocks it for as long as we offer Russio.

Please read Disclaimer of warranties and Limitation of liability with care. If you live in the European Union, the European Economic Area, Switzerland, the United Kingdom or Brazil, the section for your country gives you extra protection and prevails over the rest.

1. These terms and how you accept them

These terms of use ("terms") are an agreement between you and IOCODO LLC ("we", "us"), the company that makes Russio. IOCODO LLC is a limited liability company registered in Wyoming, United States. Its address is under Contact.

You accept these terms in the app. When you sign in with Apple or Google, and on the Russio Pro screen, a sentence that links to these terms names the buttons of the screen you are on. Tapping one of them means you accept these terms. In version 1.0.34, Russio also asks you to accept these terms the first time you open it, with the button Accept and continue. If you do not agree, please do not use Russio.

We keep a record of which version of these terms you accepted, when, and on which screen, on your device and with your account, so that both of us can show what we agreed.

Our privacy policy explains how we handle your data. It is information for you, not part of this agreement.

If you downloaded Russio from Apple's App Store, Apple's standard license agreement for apps (the Licensed Application End User License Agreement, or EULA) also applies to your license to use the app, and these terms do not replace it. Where it and these terms deal with the same point, the one that protects you more applies.

2. Who can use Russio

Russio is not meant for children under 13. In Brazil, its age rating (classificação indicativa) is 14 on the App Store and L (all ages) on Google Play.

If you are under the age of majority where you live, a parent or guardian must accept these terms for you, and they are responsible for your use of the app.

An account is personal: do not share yours, and do not use someone else's.

3. What Russio is, and what it is not

Russio is a course for learning Russian on your own. It starts with the Cyrillic alphabet and goes on level by level, with lessons, spaced review, grammar and graded reading, explained in English or in another language you choose.

Russio names its levels after the Common European Framework of Reference for Languages (CEFR), from A1 to C2, to show how advanced the material is. Russio is not:

a school or a teacher, and it does not issue certificates: finishing a level, or passing a level test in the app, shows your progress in Russio, not a certified level of Russian
linked to any exam: we are not affiliated with the Council of Europe, or with the bodies behind Russian language exams such as the TORFL

We do not promise that you will reach a level, pass an exam or learn Russian in a set time. That depends on how you study.

We prepare the course with the help of AI tools, and its audio uses a synthetic voice, not recordings of people. We correct the course when we find a mistake, but it can still contain errors, for example in a translation, a stress mark or an example.

If something looks wrong, tap Something looks wrong? in the app, or write to support@iocodo.com, and we will look into it.

4. Russio Pro: subscriptions and the lifetime plan

The Cyrillic alphabet and the A1 level are free. Russio Pro opens the levels from A2 to C2, and it comes in three plans:

Monthly: a subscription billed every month, which renews automatically until you cancel it
Annual: a subscription billed every year, which renews automatically until you cancel it
Lifetime: a single payment, with no renewals, that unlocks Russio Pro for as long as we offer Russio

On the Russio Pro screen, the subscriptions are the Subscribe buttons and the lifetime plan is Buy once. Before you buy, the screen shows the price of each plan for your country, in your currency, and how often a subscription renews.

If a plan comes with a free trial, the screen also says how long the trial lasts and what you pay after it. Unless you cancel before the trial ends, the subscription starts and then renews automatically. Where the store's rules provide for it, buying a subscription during a free trial ends the rest of the trial.

Payment and renewal

Apple or Google takes the payment from your Apple Account or Google account when you confirm the purchase. A subscription then renews for the same period, at the price of your plan, unless you cancel it in time:

on the App Store, at least 24 hours before the current period ends, because Apple charges the renewal in the last 24 hours of the period
on Google Play, before the renewal date

If the price of a subscription goes up, Apple or Google tell you before the new price applies, following their rules.

Canceling a subscription

You can cancel a subscription at any time:

on iPhone or iPad: open the Settings app, tap your name, then Subscriptions (Apple's instructions)
on Android: open the Google Play app, tap your profile picture, then Payments & subscriptions, then Subscriptions (Google's instructions)

If you have Russio Pro, Manage subscription in the app opens the same page. Canceling stops the next renewal, and you keep Russio Pro until the end of the period you have paid for. Uninstalling Russio or deleting your account does not cancel a subscription.

Refunds

Purchases of Russio Pro are made through the App Store or Google Play and follow their terms. Apple and Google take the payment, and their refund rules apply: see how to ask Apple or Google Play for a refund. We do not receive your card details.

On the App Store, Apple's own terms and its standard license agreement for apps (see section 1) also apply to your purchase.

Your rights under consumer law, including any right to withdraw from a purchase, are not affected.

Restoring a purchase

A purchase belongs to the Apple Account or Google account you made it with. On a new device, or after reinstalling Russio, tap Restore purchases on the Russio Pro screen. A purchase made on the App Store does not unlock Russio Pro on Android, or the other way round.

5. Your account

The first time Russio connects to the internet, it creates a guest account for you, with a random user ID, and uses it to back up your progress. You can sign in with Apple or Google to use your progress on other devices. Their own terms apply to that sign-in.

From version 1.0.35, if the country of your App Store or Google Play account is Russia, Russio keeps your progress on your device only, with no account and no online backup.

Keep your sign-in details to yourself. You are responsible for what happens in your account, unless it happens through no fault of yours.

You can delete your account at any time in the app (Settings, then Delete account). Deleting it also deletes your data, as our privacy policy describes. It does not cancel a subscription: cancel that in the store, as described in section 4.

6. Russio's content and your license

Russio and its content, including its lessons, texts, translations, audio, images, design and name, belong to IOCODO LLC or to those who licensed them to us.

We give you a personal, non-exclusive and non-transferable license to use Russio on devices you own or control, for your own learning and not for commercial purposes, under these terms. These terms give you no other right to Russio or its content.

7. Using Russio fairly

When you use Russio, do not:

break the law, or use Russio to harm, harass or deceive anyone
publish, sell or give away Russio's lessons, texts, audio or images, or use them to build another product or to train an AI model, except where the law allows it
copy, change, sell or rent the app, or try to extract its source code, except where the law allows it
interfere with the app or our servers, get around their security or the line between the free and the paid levels, or use bots or scripts to collect content from them
send us reports or emails that are abusive, or that contain other people's personal details

If you break these rules, we may act as described in Suspension and ending.

8. Reports and emails you send us

What you write in a report or an email stays yours. You let us use it to look into what you tell us, correct the course and answer you, also through the service providers named in our privacy policy.

If you suggest a correction or an idea, we may use it in Russio without paying you for it.

9. Services of other companies

Russio works with services of other companies, such as the App Store, Google Play and sign-in with Apple or Google, and links to some of their pages. We do not control them, and their own terms apply to them. A link is not an endorsement.

10. Changes to the app

We keep working on Russio, so the course and the app change over time: we add and correct content, and we change features. We change, suspend or remove a feature only for a valid reason:

to keep the app secure
to comply with the law or a decision of an authority
because a service of another company that the feature depends on changes or ends
to fix a defect or a mistake in the course
to improve the app without making it worse for you

Some features can be switched off from our servers without an update, for example to stop an error from reaching more people while we fix it. The same rules apply to that.

These changes cost you nothing extra, and we tell you in the app about the ones that change how you use it. We provide the updates, including security updates, that keep the app working as described.

An update is required only when an older version is no longer safe to use, no longer works with our servers, or must change to comply with the law. Other updates are optional: the app may suggest them, and you decide.

If a change makes a feature you paid for worse for you in more than a minor way, we tell you in advance what changes, when, and what you can then do. We tell you in the app, in a notice you can keep a copy of, and by email if we have your address. You can then cancel that purchase or subscription free of charge within 30 days of the change, and we refund what you paid for the time in which you can no longer use it as before. You do not have this right to cancel, or the refund, if we let you keep the previous version at no extra cost and that version keeps working as these terms and the law require.

11. Changes to these terms

We change these terms only for one of these reasons:

a change in the law or in a decision of an authority
a change in Russio or in how we provide it
a change in the services of other companies that we depend on
to make the terms clearer

We publish each new version on this page with its date. A new version applies to you from the moment you accept it.

If you do not accept a new version, you can stop using Russio and cancel any subscription without a penalty, and delete your account as our privacy policy describes.

A change never applies to a dispute that started before it took effect.

The version and the date it took effect are at the top of this page. To receive an earlier version, write to us.

12. DISCLAIMER OF WARRANTIES

Russio is provided "as is" and "as available". To the fullest extent permitted by applicable law, IOCODO LLC disclaims all warranties, express or implied, including the implied warranties of merchantability, fitness for a particular purpose, accuracy, quiet enjoyment and non-infringement. We do not warrant that the app will work without interruption or errors, or that its content will be complete, correct or current at all times.

Some jurisdictions do not allow the exclusion of implied warranties, so some of the exclusions above may not apply to you. They apply to you only as far as the law where you live allows.

If you live in the European Union, the European Economic Area, Switzerland, the United Kingdom or Brazil, this section does not apply to you: the section for your country does.

13. LIMITATION OF LIABILITY

To the fullest extent permitted by applicable law, IOCODO LLC is not liable for any indirect, incidental, special, consequential or punitive damages, or for any loss of profits, revenue, data or goodwill, arising from or related to Russio or these terms.

To the fullest extent permitted by applicable law, our total liability for all claims arising from or related to Russio or these terms is limited to the greater of the amount you paid for Russio, including in-app purchases and subscriptions, in the 12 months before the event that gave rise to the claim, and 100 US dollars.

Nothing in these terms limits or excludes our liability for death or personal injury caused by our negligence, for fraud or fraudulent misrepresentation, for gross negligence or willful misconduct, or any other liability that cannot be limited or excluded under the law that applies to you.

If you live in the European Union, the European Economic Area, Switzerland, the United Kingdom or Brazil, this section does not apply to you: the section for your country does.

14. If you break these terms

If you break these terms or the law, and someone makes a claim against us because of it, you will cover the reasonable losses and costs that this directly causes us. This does not apply to losses caused by our own fault.

15. Suspension and ending

You can stop using Russio at any time, and delete your account in the app.

We may suspend or close your account and your access to our online services, such as the backup of your progress, if you seriously or repeatedly break these terms, to prevent fraud or harm to others, or if the law or an authority requires it.

We tell you before we act and why, unless the law, a risk of harm or the security of the app prevents it, and you can reply to contest our decision.

If we stop offering Russio, we tell you at least 30 days before, in the app, and by email if we have your address.

If we close your access to something you paid for through no fault of yours, or stop offering Russio, we refund the part you paid for and can no longer use.

The sections on warranties, liability, breaking these terms, and law and disputes continue to apply after this agreement ends.

16. Law and disputes

These terms are governed by the laws of the jurisdiction in which IOCODO LLC is established, without regard to its conflict-of-laws principles. This choice does not take away the protection of the mandatory consumer rules of the place where you live: where they give you stronger rights, those rights prevail.

If you have a problem with Russio, please write to us first at support@iocodo.com. We will try to solve it within 30 days. This does not limit your right to go to court.

You can always bring a claim in the small claims court where you live, if your claim qualifies. Otherwise, you can bring it in the courts of the place where IOCODO LLC is established, or in the courts where you live when the law of your place gives you that right. We will bring any claim against you in the courts where you live.

Nothing in these terms takes away a right you have under consumer protection law.

17. Consumers in the EU, the EEA, Switzerland, the UK and Brazil

If you are a consumer and live in the European Union, the European Economic Area, Switzerland, the United Kingdom or Brazil, this section applies to you and prevails over anything else in these terms.

Your law. The mandatory consumer protection rules of the country where you live apply to you, whatever law governs these terms. If you live in Switzerland, Swiss law governs these terms.

Your courts. You can bring a claim in the courts of the place where you live, and we will bring any claim against you only there.

Our liability. The sections Disclaimer of warranties and Limitation of liability do not apply to you. Instead, we are responsible for loss or damage you suffer that is a foreseeable result of our breaking these terms or of our failing to use reasonable care and skill. We are not responsible for loss or damage that is not foreseeable, or that is caused by events outside our reasonable control.

Nothing in these terms limits our liability for death or personal injury caused by our negligence, for fraud, for willful misconduct or gross negligence (in Italy, dolo o colpa grave), or any other liability that cannot be limited by law.

Your statutory rights. Your legal rights for digital content and digital services apply in full, and these terms do not limit them.

In the United Kingdom, your statutory rights under the Consumer Rights Act 2015 are not affected, including your right to a repair or compensation if digital content we supply damages your device or other digital content because we did not use reasonable care and skill.

If you break these terms. The section with that title applies to you only as far as the law of your country allows, and only for loss that you caused by breaking these terms or the law.

Brazil. Nothing in these terms limits your rights under the Código de Defesa do Consumidor (Lei 8.078/1990). The clauses that limit rights are highlighted on this page, and you can bring a claim where you live.

18. General

If a court finds part of these terms invalid, the rest still applies.

If we do not enforce a right straight away, we can still enforce it later.

We may transfer this agreement to another company, for example if Russio is sold, as long as your rights are not reduced, and we will tell you if that happens. You may not transfer your rights under these terms to someone else without our agreement.

These terms are written in English. If we publish them in another language and the versions differ, the version more favorable to you applies.

19. Contact

IOCODO LLC
Postal address, also for legal notices: 30 N Gould St Ste N, Sheridan, WY 82801-6317, United States
Email: support@iocodo.com
Phone: +1 307 800 7271
Website: iocodo.com

Version 2026-10-07, effective October 7, 2026.