Terms of Use

1Provider and scope

These Terms govern the Android app Chromweir, provided by Zydeno. Contact [email protected] with any question about them. The Privacy Policy explains what stays on your device, what you can export and how support e-mails are handled.

2Agreement to these terms

These Terms of Use (“Terms”) are a legal agreement between you and Zydeno, the developer of Chromweir (“we”, “us”). They apply to the Chromweir app for Android, its updates and everything it shows or produces (together, “the app”). By installing, opening or using the app you accept these Terms. If you do not accept them, do not use the app and uninstall it.

The Privacy Policy explains how the app handles data and forms part of these Terms. If we offer optional features under additional terms in the future, for example paid features, those terms will be shown to you before you accept them and will apply together with these Terms.

You must be old enough to enter into a binding contract where you live, or use the app with the consent and supervision of a parent or guardian who accepts these Terms for you. If you use the app for an organisation, you confirm that you may accept these Terms on its behalf; the consumer-protection provisions of these Terms apply only to consumers.

3The app

Chromweir is an offline personalisation app. It offers a collection of generative prints in three families (flowing bands, skies and a globe), lets you change their colours, pace and light, keep a calm area for home-screen icons, save your own versions, set a print as a live wallpaper through Android’s wallpaper picker, and save a still picture of any moment as a PNG file or as your lock-screen picture. Daylight can change the light of a print with the clock or with the sunrise and sunset of a city you choose. You can export and import backups and single design files.

The app is a tool for decorating your own screens. It has no multiplayer service, chat, online gallery, marketplace or downloadable content, and it does not award points, currency or anything of value.

4Not professional advice; no safety-critical use

The moving wallpapers, still pictures, colours, sunrise and sunset light and battery and smoothness indications that Chromweir shows are visual and approximate. Sunrise and sunset light is calculated on your phone with a simplified formula from a built-in list of cities or the coordinates you enter; battery and smoothness indications describe your phone’s current conditions, not a measurement of its battery. Do not rely on them for timekeeping, navigation, outdoor plans, religious observances, battery planning or anything else where an error matters; use a dedicated, official source instead.

The app is a personalisation tool. It does not give medical, technical or other expert advice, and using it does not create a professional relationship with us. Do not use it in a safety-critical system or in an emergency. Chromweir is not a clock, alarm, almanac or medical device, and it does not test, diagnose, prevent or treat any condition.

5Licence to use the app

Subject to these Terms, we grant you a limited, personal, revocable, non-exclusive, non-transferable and non-sublicensable licence to download, install and use the app on Android devices you own or control, for your own purposes (to personalise the screens of your own devices). The app is licensed to you, not sold.

Except where these Terms, an open-source licence or mandatory law allow it (for example decompiling for interoperability where the law permits), you may not: copy, modify, translate or create derivative works of the app; decompile, disassemble or reverse-engineer it; rent, lend, sell, sublicense, distribute or publish it, or make it available for use by others over a network; remove or change any copyright, trademark or legal notice; or get around any technical limit of the app, including any future purchase, licence or advertising mechanism.

Open-source components and fonts in the app are licensed under their own licences, listed in the app under Settings → About → Fonts, code and map licences. Those licences prevail for those components, and nothing in these Terms limits the rights they give you.

6How the live wallpaper works on your phone

Android, your phone’s manufacturer and your home-screen and lock-screen apps decide where and how a live wallpaper is shown. Some phones do not show live wallpapers on the lock screen, some home-screen apps keep touches for themselves, and Android may stop, restart or replace a live wallpaper, for example after a system update, when memory is low or when you change the theme. Chromweir offers a matching still picture where a live wallpaper cannot be used, but it cannot override these system decisions.

A live wallpaper uses battery, memory and processing power whenever it is visible. Chromweir pauses when the screen is off or the wallpaper is hidden and slows down in Battery Saver; the Battery and smoothness settings let you choose fewer frames. How much battery it uses depends on your phone, its screen and how long the screen stays on; we do not promise any particular battery use, frame rate or temperature.

Setting a still picture on your lock screen replaces the picture there now. Chromweir does not keep a copy of your previous wallpaper; if it matters to you, keep your own copy before you replace it. A still picture you set stays on your lock screen even if you remove Chromweir.

7Pictures and design files you make

The prints, palettes, motion and presets in Chromweir are original works created for the app. A still picture or design file you make is based on them and on your own choices. You may use, copy, display, print and share the still pictures you save, for personal and non-commercial purposes, including as wallpaper on any of your devices, in your own creative projects and in social-media posts. This permission is free of charge, is not exclusive and continues after these Terms end for pictures you have already saved.

Without our written permission, you may not sell or license the pictures or design files, or collections of them, as stock images, wallpapers or wallpaper packs, digital collectibles or print-on-demand products, include them in another app or service, or use them as a logo or trademark. Design files may be shared with other people for use in Chromweir.

Because pictures are generated from shared prints and settings, other people can make the same or very similar pictures. You do not obtain exclusive rights in a picture, and we do not promise that a picture can be registered or protected as yours.

8Comfortable and responsible use

Choose comfortable motion, brightness, sound and haptic settings. Reduce motion, the setting that keeps the wallpaper still and a still picture are available for anyone who prefers less movement. Do not look at or adjust the app while driving or doing anything that needs your full attention.

You are responsible for the names you give your prints, the files you import, the place you save exports to and the people you share them with. Your wallpaper is visible to anyone who sees your screen; choose accordingly where you use the phone.

9Your data, exports and deletion

Your saved prints, draft, wallpaper choices and settings are stored only on your device. We hold no copy and cannot restore lost data. Android automatic backup and device transfer are switched off, so uninstalling the app, clearing its storage, resetting or losing your phone erases the data unless you have exported a backup. Use Settings → Your data to export a backup, to import one and to delete all data.

Importing a backup replaces what is on the device, with a short Undo afterwards; export a copy first. The app checks files and writes changes atomically, but it cannot guarantee recovery after a device or storage failure. Backups, design files and pictures are not encrypted by the app. If you choose a cloud-backed location or share a file with another app, that provider or app is responsible for it under its own terms. Deleting data in the app does not delete exported files, files you have shared or a picture you set on your lock screen.

10Files you import and share

Import only backups and design files that you trust and are entitled to use. The app reads only Chromweir files, limits their size and rejects files it cannot read, but it cannot tell who made a file. When you share a design file or picture, check that you are allowed to share it under §7 and the law where you live. You keep any rights you have in the names you enter; you grant us no rights in them, because they never leave your device through the app.

11Third-party software, map data and original content

The app uses AndroidX, Jetpack Compose, Kotlin, kotlinx.coroutines and kotlinx.serialization under the Apache License 2.0, and bundles the Onest typeface (Copyright 2021 The Onest Project Authors) and the Noto Sans Mono typeface (Copyright 2022 The Noto Project Authors) under the SIL Open Font License 1.1. Licence texts and copyright notices are available offline in Settings → About → Fonts, code and map licences. Where an open-source licence gives you rights that differ from these Terms, the open-source licence prevails for that component.

Globe prints are made with Natural Earth: the coastlines come from Natural Earth land data, which is in the public domain. City names, coordinates and time zones in Daylight come from GeoNames under the Creative Commons Attribution 4.0 licence; the offline list is a reduced selection. Neither Natural Earth nor GeoNames endorses Chromweir, and the map and city data are simplified for decoration, not for navigation.

The prints, palettes, motion, sounds, icon and in-app texts are created for Chromweir; the sounds are synthesised for the app and contain no third-party recordings. The app does not copy or imitate the wallpapers of any phone maker or other app and is not affiliated with, or endorsed by, Google, any phone maker or any home-screen app. Android, Google Play, your home-screen and lock-screen apps, your browser, e-mail app and any document provider are independent products and services with their own terms; they are named only to explain how the app works.

12Acceptable use

Use the app lawfully and in line with these Terms, including §7. Do not import, share or set as wallpaper files that you are not allowed to use, and do not present Chromweir pictures as the work of another artist or brand, or as official material of Zydeno, Google or a phone maker.

13Intellectual property

The app’s original code, prints, palettes, motion, sounds, design and texts are protected by intellectual-property law and belong to us or our licensors. Apart from the permission for pictures in §7, exporting a backup, design file or picture gives you a copy of your own data; it does not transfer rights in the app’s software, prints, sounds or fonts.

14Price, payments, ads and future paid features

Current version. The current version of Chromweir is provided free of charge, without ads and without in-app purchases or subscriptions. This describes the current version only. It is not a promise that the app, or any feature of it, will remain free of charge or free of ads.

Possible changes. We may at any time introduce advertising; offer paid features, in-app purchases, subscriptions or a paid edition; change which features are free; and set or change prices. Features that are free today may require payment in a future version. We will describe such changes in the store listing and release notes, and in the Privacy Policy where they affect data.

Purchases. Any purchase will be made through Google Play and processed by Google under the Google Play Terms of Service and its payment policies. Prices are shown in Google Play before you buy, including taxes where applicable. Subscriptions renew automatically until you cancel them in Google Play; cancelling stops future renewals. Refunds follow Google Play’s refund policies and your mandatory consumer rights, such as the right of withdrawal in the EU and the UK. Where you ask for immediate access to digital content during a withdrawal period, you may lose that right to the extent the law allows, and you will be asked to confirm this before you buy. You are charged only if you choose to buy something.

Ads. If the app shows ads, they are supplied by third parties. We are not responsible for the content of ads or for the products and services advertised, and any dealings with advertisers are between you and them.

Price changes. We may change prices for future purchases at any time. For an active subscription, we will announce a price increase as Google Play and the law require, and you can cancel before it applies.

15Disclaimer of warranties

The app, its live wallpaper, prints, still pictures, design files, sunrise and sunset light, battery and smoothness indications, backups and other functions are provided “as is” and “as available”. We do not warrant that a live wallpaper works on every phone, home-screen or lock-screen app, that Android keeps Chromweir as your wallpaper after updates or restarts, any particular battery use, frame rate, colour or appearance, error-free calculations, uninterrupted operation or the preservation of data stored on your device.

16Limitation of liability

To the extent permitted by law, we are not liable for battery drain, heat or slower performance of your device; for discomfort you continue to feel after you have noticed it while viewing moving images (see §4); for the loss of a previous wallpaper or lock-screen picture replaced at your request; for lost, corrupted or overwritten prints, backups or design files; for how other people use pictures or design files you share; or for decisions based on approximate sunrise and sunset times.

17Your rights as a consumer

If you use the app as a consumer, you benefit from the mandatory consumer-protection rules of the country where you live, and nothing in these Terms affects them. In particular:

• EU and EEA: your statutory rights, including those on the conformity of digital content and digital services under the national rules implementing Directive (EU) 2019/770 where they apply, and mandatory product-liability rules, remain unaffected.
• United Kingdom: your statutory rights, including under the Consumer Rights Act 2015, remain unaffected.
• Australia: our services come with guarantees that cannot be excluded under the Australian Consumer Law. Where the law allows us to limit our liability for failing to meet a consumer guarantee for services that are not of a kind ordinarily acquired for personal, domestic or household use, our liability is limited to supplying the services again or paying the cost of having them supplied again.
• New Zealand: if you acquire the app for business purposes, you agree that the Consumer Guarantees Act 1993 does not apply, to the extent the law permits.
• United States and Canada: some states and provinces do not allow the exclusion of implied warranties or the limitation of incidental or consequential damages, so some of the exclusions above may not apply to you. In Québec, the mandatory provisions of the Consumer Protection Act apply.

18Indemnity

To the extent permitted by law, you agree to indemnify and hold harmless the developer against claims, liabilities, damages, losses and reasonable costs, including reasonable legal fees, brought by third parties and arising out of (a) the design files, pictures and other content you import, export, share or publish, including content you are not entitled to use, (b) your breach of these Terms, (c) your violation of any law or of the rights of others, or (d) output of the app that you provide to another person, such as a client or employer. This does not apply to the extent a claim is caused by our own breach of these Terms or our negligence, or where local consumer law does not allow it.

19Changes, availability and termination

To the extent the law allows, we may change, update, add or remove features, change data sources, and suspend or discontinue the app, in whole or in part or in any country, at any time. We are not obliged to provide updates, maintenance or support, except where mandatory consumer law requires updates to keep the app in conformity.

You may stop using the app at any time by uninstalling it. Your licence ends automatically if you materially breach these Terms, and we may end or suspend it where the law requires. When it ends, you must stop using the app and uninstall it. Your data stays on your device under your control, so export what you need first.

Provisions that by their nature should continue after these Terms end continue to apply, including those on intellectual property, disclaimers, limitation of liability, indemnity, governing law and general provisions.

20Google Play

You obtain the app through Google Play. Your download, and any purchase you make, is also governed by the Google Play Terms of Service and Google’s policies. Where these Terms conflict with Google Play’s terms on the distribution, billing, refunds or licensing of apps obtained from Google Play, Google Play’s terms prevail to the extent of that conflict.

These Terms are between you and the developer only, not Google. Google is not responsible for the app or its content and has no obligation to provide maintenance or support for it. Android and Google Play are trademarks of Google LLC.

21Governing law and disputes

These Terms, and any dispute or claim arising out of or in connection with them or the app, including non-contractual disputes, are governed by the law of the country in which the developer is established, without regard to its conflict-of-laws rules. The United Nations Convention on Contracts for the International Sale of Goods does not apply.

The courts competent for the place where the developer is established have jurisdiction. If you are a consumer, you keep the protection of the mandatory provisions of the law of your country of residence, and you may bring proceedings in the courts of that country where that law allows it.

Before starting formal proceedings, please write to [email protected] and give us at least 30 days to try to resolve the issue informally. This does not affect any time limit that applies to you by law or your right to use an alternative dispute-resolution body available to consumers in your country.

22General provisions

• Entire agreement. These Terms, the Privacy Policy and any additional terms you accept for optional features are the entire agreement between you and us about the app.
• Severability. If a provision is found invalid or unenforceable, it applies to the maximum extent permitted and the rest remains in effect.
• No waiver. Not enforcing a provision is not a waiver of the right to enforce it later.
• Assignment. You may not transfer your rights or obligations under these Terms. We may transfer ours, for example together with the app to another developer; where the law requires, this will not reduce your rights as a consumer.
• Events beyond our control. We are not responsible for failure or delay caused by events beyond our reasonable control, such as outages of networks, devices or third-party services, natural disasters or acts of authorities.
• Export and sanctions. You agree to use the app in compliance with applicable export-control and sanctions laws.
• No third-party rights. No one other than you and us may enforce these Terms.
• Notices. We may give notices in the app, in its store listing or release notes, or on this page. You can send notices to [email protected].
• Language. These Terms are written in English, which is the binding version. A translation, if offered, is for convenience only, unless the law of your country requires otherwise.

23Changes to these terms

We may update these Terms, for example when we change the app, introduce ads or paid features (§14), or when the law changes. The effective date and version at the top of this page show which version applies, and the version history (§24) summarises the changes.

For material changes we give reasonable notice before they take effect, for example in the release notes or in the app. If you keep using the app after the changes take effect, you accept the updated Terms; if you do not agree, stop using the app and uninstall it. Changes do not apply to disputes that arose before they took effect.

24Version history

25Contact

• Developer: Zydeno, the developer of Chromweir on Google Play
• E-mail: [email protected]
• Website: zydeno.com

See also the Privacy Policy.