Terms of use

Screen Dimmer (Android app com.geckr.screendimmer)
Last updated: 16 October 2026

These terms are an agreement between you and Geckr Limited, a company registered in England and Wales (company number 15250032), registered office Unit 29 Highcroft Industrial Estate, Enterprise Road, Horndean, Waterlooville, United Kingdom, PO8 0BT ("we", "us"). By installing or using Screen Dimmer (the "app") you accept them. If you do not agree, please do not use the app and uninstall it.

Our privacy policy explains how personal data is handled and forms part of these terms.

1. Who can use the app

The app is intended for people aged 13 and over. If you are under 18, please make sure a parent or guardian is happy for you to use it.

2. Your licence

We give you a personal, non-exclusive, non-transferable, revocable licence to install and use the app on Android devices you own or control, for your own non-commercial use, in line with these terms and the Google Play Terms of Service.

You must not:

• copy, modify, translate, decompile or reverse-engineer the app, except as far as the law allows you to do so and it cannot be restricted by contract;
• remove or alter any notices, or tamper with, block or misrepresent the adverts in the app, including generating fake impressions or clicks;
• use the app to break the law, to harm another person, or to interfere with someone else's device without their permission (for example through the automation intents);
• rent, sell or redistribute the app.

The app, its design, text, graphics and code belong to us or our licensors. Nothing in these terms transfers any ownership to you.

3. What the app does, and using it safely

Screen Dimmer darkens your screen with an overlay. Please use it sensibly:

• Do not rely on it where you need to see your screen clearly, for example while driving, operating machinery, navigating, or when you may need to make an emergency call.
• Getting out of a dark screen. If the screen becomes too dark to use, turn the screen off and on three times within five seconds, or use Android's accessibility shortcut (hold both volume keys) to switch dimming off. Very dark levels above the one you last confirmed revert by themselves after ten seconds unless you confirm them.
• Screenshots and screen recordings taken while dimming is on may come out dark.
• Limited mode cannot dim the status bar, and on Android 12 and later it stops at 80%, as the app explains.
• The app is not a medical device and is not intended to diagnose, treat or prevent any condition. If you have concerns about your eyes, light sensitivity or migraines, please speak to a healthcare professional.

4. Adverts

The app is free and is funded by banner adverts shown inside the app's own screens, provided by Google AdMob. Adverts are chosen and served by Google, not by us, and we are not responsible for the content of third-party adverts or the products, services or websites they link to. If you see an advert you think is inappropriate, please tell us at screendimmerapp@geckr.com so we can report or block it. How advertising uses data, and how to change your choices, is explained in the privacy policy.

Supporting the app. You can choose to support Screen Dimmer with a one-off payment through Google Play (Settings › Support › Support Screen Dimmer, or from the support banner on Home). Once Google Play confirms it, the app shows no adverts, now or in future, on any device signed in to the same Google account. It is optional: every feature works the same without it. The price is shown by Google Play before you pay. Payment, receipts and refunds are handled by Google Play under its terms; if a payment is refunded or reversed, adverts may be shown again. Because the purchase takes effect as soon as it is confirmed, you agree to it being supplied straight away and you lose the 14-day right to cancel once it has been; this does not affect your other rights, including if it does not work as described.

5. Improving the app

Usage analytics and crash reports. With your permission, the app sends us information about how it is used and about errors and crashes, through our analytics provider. We use it to fix problems, understand which features are useful, and improve the app. Sharing is optional, off until you agree, and can be turned off at any time under Settings › Privacy and ads › Usage analytics; the app works the same either way. What is collected and your rights are explained in the privacy policy.

Testing changes. To improve the app, we sometimes try a new or changed feature with some users before others (feature flags and experiments). The app may therefore look or behave slightly differently for you than for someone else for a while. We never use this to weaken the safety features described in section 3. If you have not agreed to usage analytics, you see the standard version.

Statistics. We may use statistics and insights that do not identify you, for example how many people use schedules, for any purpose, including improving and promoting the app.

Your feedback. If you send us suggestions or feedback, we may use them to improve the app without owing you anything for them. Please do not send us anything confidential.

6. Permissions and Android features

Some features need permissions, such as the accessibility service, displaying over other apps, notifications or modifying system settings. The app explains each one before Android asks you. You can withdraw a permission at any time in Android settings; the features that depend on it will then stop working.

7. Updates and availability

We may update the app to add, change or remove features, fix problems, or comply with law or Google Play policies. Some updates may be needed for the app to keep working. We aim to keep the app available but do not promise it will be uninterrupted, error-free, or compatible with every device or Android version. We may stop offering the app; if we do, the version on your device may keep working, but we will no longer update it.

8. Our responsibility to you

The app is free to use; supporting it (section 4) is optional. Your legal rights as a consumer, including under the Consumer Rights Act 2015, are not affected by these terms. In particular, if digital content we supply damages your device or other digital content and this is caused by our failure to use reasonable care and skill, we will either repair the damage or compensate you.

We are not responsible for loss or damage that was not foreseeable, that results from your not following these terms or the safety notes in section 3, or that is caused by events outside our reasonable control. We are not liable for business losses, as the app is for personal use only.

Subject to the paragraph below, our total liability to you in connection with the app is limited to £100.

Nothing in these terms limits or excludes our liability for death or personal injury caused by our negligence, for fraud or fraudulent misrepresentation, or for anything else that cannot be limited or excluded by law.

9. Ending these terms

You can end these terms at any time by uninstalling the app. We may end your licence if you seriously or repeatedly break these terms. Sections 2 (restrictions and ownership), 5 (statistics and feedback), 8 and 11 continue after these terms end.

10. Google

These terms are between you and us, not Google. Google has no obligation to provide support for the app. Your use of Google Play is governed by Google's own terms.

11. Law and disputes

These terms are governed by the law of England and Wales. You can bring proceedings in the courts of England and Wales; if you live in Scotland or Northern Ireland, you can also bring proceedings in your local courts. If you live elsewhere, you also keep any protections the law of your country gives you that cannot be changed by agreement.

Please contact us first so we can try to resolve any problem informally.

12. Changes to these terms

We may change these terms, for example to reflect changes in the law or in the app. We will update the date at the top and, for significant changes, let you know in the app or the release notes before they take effect. If you do not agree to a change, you can stop using the app and uninstall it.

13. General

If a court finds part of these terms invalid, the rest stays in force. If we do not enforce a term straight away, we can still enforce it later. You may not transfer your rights under these terms; we may transfer ours to another organisation that will continue to provide the app, and will tell you if we do.

14. Contact

Geckr Limited, Unit 29 Highcroft Industrial Estate, Enterprise Road, Horndean, Waterlooville, United Kingdom, PO8 0BT
Email: screendimmerapp@geckr.com