Terms and Conditions

1Who we are

Infinilang ("the app") is published by Ars Vitae Pty Ltd, an Australian company trading as Hex Pro ("we", "us", "our"). These terms are an agreement between you and Ars Vitae Pty Ltd about your use of the app and of the online services it uses, including your Infinilang account.

2Agreeing to these terms

By installing or using the app you agree to these terms. If you do not agree, do not use the app.

When you sign in, including when you create an account, the app asks you to agree to these terms, and we record the latest version you have agreed to and when you first agreed to it. Apple's standard Licensed Application End User License Agreement also applies, as section 4 explains. The Privacy Policy explains how we handle information about you.

3Age

You must be 13 or older to create an Infinilang account. When you sign in, the app works out your age band, as the Privacy Policy explains. You do not need an account to use the study app, and anyone can use it.

If we learn that an account belongs to a child under 13, we delete it (section 14).

If you are under 18, read these terms with a parent or guardian before you create an account. Purchases are made through your Apple Account, where Apple's rules for family members apply, such as a parent or guardian having to approve a purchase.

4Licence to use the app

We grant you a personal, non-exclusive, non-transferable licence to install and use the app on Apple devices you own or control, for your personal, non-commercial use, as permitted by the App Store terms. Apple's standard Licensed Application End User License Agreement also applies to the copy you download from the App Store.

The app is proprietary software. The app and its content, including the software, design and artwork, are owned by us or our licensors. The Hex Pro and Infinilang names and logos are trademarks of Ars Vitae Pty Ltd. Dictionary data, fonts and other software included in the app are used under their own licences, which section 12 describes. No rights are granted beyond the licence in this section.

5What Infinilang does

Infinilang is a study app for reading Japanese. It schedules lessons and reviews of kanji and vocabulary using spaced repetition, with content from your WaniKani account, from a deck file you import, or from kanji you choose in the app.

The study app is free and needs no account. It works without an internet connection, except when it talks to WaniKani for you.

The AI reading features write Japanese reading passages from the kanji you have learned. They need an account and an Infinilang Pro subscription, and they are available only in versions of the app that include them.

6Your account

An account is for one person. Keep the ways you sign in secure, including your Apple Account, your Google Account and your email inbox, because anyone who can use one of them can sign in to your account. If you think someone else has signed in to your account, tell us at support@hex.pro as soon as you can.

We check each phone and each sign-in, and we may refuse one that fails those checks.

Each way to sign in belongs to one account only, and we never merge accounts. Signing in a way that is not yet part of your account, even with the same email address, creates a separate account unless you have first added that way to your existing account.

7The free app and Infinilang Pro

The study app is free. You can learn and review kanji and words from WaniKani, from a deck file or from kanji you choose, without an account and without paying.

Infinilang Pro is a subscription that adds the AI reading features in section 9 to your account. You must be signed in to an Infinilang account to buy it or to use it. It belongs to the account it was bought with, so you can use it on any phone where you sign in to that account. A subscription that already belongs to another Infinilang account cannot be used with yours.

Use of the AI reading features is subject to fair-use limits on how much one account can generate in a period.

8Paying for Infinilang Pro

Infinilang Pro is sold through the App Store. Apple processes the payment, charges your Apple Account and holds the record of what you bought. We never receive or store your payment details. Apple shows the price and the length of each subscription period before you confirm.

The subscription renews automatically at the end of each period, at the price shown when you subscribe, until you cancel it. To stop it, turn off automatic renewal in your Apple Account settings at least 24 hours before the current period ends. Cancelling stops the next charge, and Infinilang Pro stays active until the end of the period you have already paid for. Deleting the app, signing out or deleting your Infinilang account does not cancel a subscription.

Where Apple offers a free trial or an introductory price, the terms shown before you confirm apply. The subscription then continues at its full price unless you cancel at least 24 hours before the trial or introductory period ends. Apple decides who is eligible.

Prices are set for each country and can change. Apple applies any change to a subscription price and, where Apple requires it, asks for your agreement before the new price takes effect.

Refunds are handled by Apple under the App Store terms, not by us. Use Apple's Report a Problem page or contact Apple Support to ask for one. Section 18 sets out rights you have under the Australian Consumer Law that nothing in this section limits.

9AI-generated passages

The AI reading features use generative AI to write Japanese passages for you to read, using the kanji you know. Passages are written by computer, not by a person. They may contain mistakes in readings, grammar, meaning or facts, even after our automated checks. They are a study aid, not a substitute for a teacher, a dictionary or a professional translation, and you should not rely on them for anything important.

A passage that fails our checks may be written again or withheld.

If you find a passage that is wrong, inappropriate or offensive, tell us at support@hex.pro, quoting the passage, and we will look at it.

10Your topics and the shared library

When you use the AI reading features, you can give a topic for a passage. You keep whatever rights you have in your topics. You grant us a non-exclusive, worldwide, royalty-free licence to use each topic to write and check passages and to show them to you.

If you are 18 or older and a topic is generic, you also grant us a licence to place the passage written from it in Infinilang's shared library, where other learners may be shown it. A topic is generic when it describes an everyday subject and names no person, place or anything else that could identify you or anyone else, and our automated checks decide whether it is. A shared passage carries no name and no link to you or your account. It stays in the library after your account is deleted, and this licence continues for it.

A topic from an account whose age band is under 18 never leads to a passage in the shared library. A passage in the shared library is shown to a learner under 18 only if it has been rated as suitable for their age.

We do not use your topics, or the passages written from them, to train any AI model.

Do not put personal information about anyone, yourself included, into a topic.

11Acceptable use

The app and its services are for your personal use. You must not:

• copy, modify, distribute, sell or lease any part of the app, or publish or sell the passages it writes
• reverse engineer the app or extract its source code, except as the law permits despite this restriction
• use the app in a way that breaks the law or infringes anyone's rights
• give a topic that asks for sexual content, anything that sexualises a child, content that promotes self-harm or suicide, graphic violence, hateful content, harassment of anyone, or help with an illegal act
• try to get round the topic checks, the fair-use limits or any other limit or security measure in the app or our server
• reach our server other than through the app, including with scripts, bots or other automated means
• share your account with anyone else, or sell or transfer it
• interfere with the normal operation of the app or our server

12WaniKani, deck files and dictionary data

Infinilang is not affiliated with, or endorsed by, WaniKani or Tofugu LLC, which operates it. If you connect a WaniKani account, the app uses the personal access token you give it to download your WaniKani items and progress to your phone, and to send your reviews and the lessons you start to WaniKani on your behalf. Your WaniKani account, your use of it and the data it holds are governed by WaniKani's own terms and privacy policy, not by these terms. We are not responsible for WaniKani's availability, its content or changes to its service or API.

A deck file you import, such as an Anki or Mochi export, is read on your phone. You are responsible for having the right to use any deck you import, including one somebody else made, shared with you or published for download, and for keeping to the terms of the service or the author it came from. Many shared decks are somebody's copyrighted work. We do not host, share or publish what you import.

Infinilang's dictionary data comes from the KANJIDIC2 and JMdict files of the Electronic Dictionary Research and Development Group, used under the Creative Commons Attribution-ShareAlike Licence, version 4.0. The licences and acknowledgements for that data, and for the fonts and other software included in the app, are shown in Settings, under About Infinilang.

13Your data

What you study is stored on your phone. Unless you turn on progress sync, which is optional, we hold no copy of your study data and cannot restore it. The Privacy Policy explains what we collect, why, where it is kept, how long we keep it and how to delete it.

14Deleting your account

You can delete your account at any time in Settings, under Infinilang account, by choosing Delete account. If you have not signed in during the last ten minutes, the app asks you to sign in again first. Deletion takes effect straight away and cannot be undone. The Privacy Policy lists the records that remain for a limited time afterwards.

Deleting your account does not cancel an Infinilang Pro subscription. Apple keeps billing your Apple Account until you cancel the subscription in your Apple Account settings. What is on your phone stays unless you also choose to erase this phone.

If you cannot use the app, write to support@hex.pro, and we will delete the account once we have checked that it is yours.

We delete an account without a request from you only:

• if we learn that it belongs to a child under 13
• if its only way to sign in was Sign in with Apple with one Apple Account, and Apple tells us that this Apple Account has been deleted, because nobody can sign in to the account again
• if it was made for testing before Infinilang's first public release, at that release

We also delete the synced copy of your progress on our server, though not your account, 3 years after the later of the last time you signed in or used the app while signed in and the end of your last Infinilang Pro subscription, as the Privacy Policy explains.

15Suspension and termination

You may stop using Infinilang at any time, and you may delete your account at any time.

We may suspend your account, or end your access to the features that need an account, if you seriously or repeatedly breach these terms, if you misuse our service or try to harm it or other learners, if you act fraudulently, or if the law requires us to. Where it is practicable and lawful, we will tell you first, explain why and give you a reasonable chance to put things right. We will not suspend an account or end your access for any other reason, except by deleting an account in one of the cases section 14 lists.

If we end your access for a breach of these terms, the licence in section 4 also ends. Ending your access does not delete your account. The Privacy Policy explains how long information is kept, and you can still ask us to delete it.

16Availability and changes

The study app works without a connection. Signing in, progress sync and the AI reading features need one, and they depend on our servers and on the providers named in the Privacy Policy, so they may sometimes be unavailable.

We may change, suspend or discontinue the app or any part of it, and updates may add, change or remove features. If we decide to stop offering the AI reading features, we will tell you in the app at least 30 days before they stop, and we will stop selling Infinilang Pro. Nothing in this section limits your rights under section 18.

17No warranty and liability

To the extent the law allows, the app and our services are provided "as is" and "as available", without warranties of any kind, express or implied, including warranties of merchantability, fitness for a particular purpose, accuracy and non-infringement. We do not warrant that the app or our services will be uninterrupted or error-free, or that passages will be free of mistakes.

To the extent the law allows, we are not liable for indirect, incidental, special or consequential loss, or for lost income, opportunity, data or progress, arising from your use of, or inability to use, the app or our services. Nothing in these terms excludes liability that cannot be excluded by law.

18Australian Consumer Law

If you are in Australia, our goods and services come with guarantees that cannot be excluded under the Australian Consumer Law. Nothing in these terms limits those rights. If you live in another country, including the United Kingdom, nothing in these terms limits the rights its consumer law gives you that cannot be excluded by agreement.

19Governing law

These terms are governed by the laws of Queensland, Australia. You and we submit to the non-exclusive jurisdiction of the courts of that state, without affecting any right you have to bring proceedings where you live. This choice of law does not take away the protection that the mandatory laws of the country where you live give you.

20Changes to these terms

If these terms change, the effective date above changes, and the updated terms are published at apps.hex.pro/infinilang/terms and included in the next version of the app.

If a change is material, for example a change to what Infinilang Pro includes, to your rights or to how your topics are used, we will tell you in the app at least 30 days before it takes effect, unless the law requires the change sooner, and ask you to accept the updated terms. If you do not agree to the change, you can cancel your subscription and delete your account before it takes effect. We do not treat continuing to use the app as acceptance of a material change.

21Contact

Questions about these terms: support@hex.pro