Last updated: 7 November 2026
1. About these terms
LSX4 and LSX4 Gold are provided by Jetcalls LLC (“we”, “us”). These Terms of Service (“Terms”) are an agreement between you and us for the following Android apps distributed through Google Play:
- LSX4 (
com.jetcalls.lsx4) - LSX4 Gold (
com.jetcalls.lsx4.gold)
In these Terms, “the App” means either of them. By installing or using the App, you agree to these Terms. If you do not agree, do not install or use the App.
Your download and any purchase are also subject to the Google Play Terms of Service. How we handle data is described in our Privacy Policy.
2. What LSX4 is
LSX4 is a PS4 and PS5 emulator for Android devices with an ARM64 processor and Vulkan support. It is a commercial application built on the open-source LSX4 project.
The App contains no games, BIOS, firmware or other system software from any platform holder. LSX4 is not affiliated with, sponsored by or endorsed by Sony Interactive Entertainment. “PS4” and “PS5” are trademarks of their respective owners and are used only to describe compatibility.
3. Lawful use and your files
You may use the App only with game files and other content that you legally own and are entitled to use. You are responsible for the files you add to the App and for complying with the laws that apply to you, including copyright law.
You must not use the App to:
- play, copy or distribute games or system software that you do not legally own;
- infringe the intellectual property or other rights of anyone else; or
- break any law or regulation.
We do not provide, sell, link to or help you obtain games, BIOS, firmware or system software, and we will not answer requests to do so.
4. Screenshots and recordings
The App can take screenshots and record gameplay video, which are stored on your device. You are responsible for the screenshots and recordings you make and share. Shared content may include material protected by third-party rights, such as game graphics and audio, so share it only where you are allowed to.
5. Licence to use the App
Subject to these Terms, we grant you a personal, non-exclusive, non-transferable, revocable licence to install and use the App on Android devices that you own or control, for your personal, non-commercial use.
Open-source components. LSX4 is built on the open-source LSX4 project, which is licensed under the GNU General Public License, version 2 (GPL-2.0). Open-source components of the App are governed by their own licences. Nothing in these Terms limits any right you have under those licences, and where these Terms and an open-source licence conflict for an open-source component, the open-source licence prevails.
The following restrictions apply only to the parts of the App that are not covered by an open-source licence, such as the LSX4 and LSX4 Gold names and logos, interface themes, artwork and store listings. You must not:
- sell, rent, sublicense or redistribute LSX4 Gold or its paid extras;
- remove or alter copyright, trademark or licence notices; or
- use the LSX4 name or logo in a way that suggests we endorse you or your product.
6. LSX4 and LSX4 Gold
LSX4 is free to download. It may contain advertising, including ads provided by third-party advertising networks.
LSX4 Gold is a paid app that does not contain advertising. It is currently sold through Google Play for a one-time price shown on its store listing. Buying LSX4 Gold supports development of LSX4. It includes additional interface themes and other extras described on its store listing. LSX4 Gold uses the same emulation engine as LSX4: it does not improve game compatibility or performance.
In the future, LSX4 Gold or some of its features may be offered as a subscription. Before you subscribe, Google Play will show you the price, billing period and renewal terms. A subscription renews automatically until you cancel it. You can cancel at any time in your Google Play subscriptions, and the cancellation takes effect at the end of the current billing period. If LSX4 Gold moves to a subscription, people who already bought it for a one-time price keep the features included in their purchase without having to subscribe.
Neither app currently contains in-app purchases.
We may add, change or remove features over time. We will not remove the interface themes advertised on the LSX4 Gold store listing at the time you bought it, except where this is required by law, by Google Play, or to fix a security or legal problem.
7. Payments, refunds and consumer rights
All payments, including any future subscriptions, are processed by Google Play. We do not receive your payment card or bank details. Refunds are handled under the Google Play refund policy. If you have a problem with LSX4 Gold, you can also contact us at [email protected].
We act as a trader on Google Play. If you are a consumer, you have legal rights under the consumer protection laws of your country, such as rights when digital content is faulty or not as described. Nothing in these Terms affects those rights. Any right of withdrawal for your purchase is handled through Google Play, as explained to you during checkout.
8. Compatibility and early-stage software
LSX4 is at an early stage of development. Compatibility is limited and depends on the game, your device, its graphics driver and your settings. A game appearing in your library does not mean that it will run correctly or at all. The App may crash, run slowly or behave unexpectedly, and saved game data could be lost. Keep backups of files that matter to you.
Lists of compatible games on our website or in the open-source project describe test results on particular devices. They are not a promise that a game will run on your device.
If you import a third-party Vulkan graphics driver, you do so at your own risk. An incompatible driver can make the App unstable.
9. Updates
We may release updates to fix problems, improve the App or meet legal and Google Play requirements. Some updates may be needed for the App to keep working. Updates are delivered through Google Play.
10. Disclaimer
To the extent permitted by law, the App is provided “as is” and “as available”, and we disclaim all warranties not expressly stated in these Terms, including implied warranties of merchantability, fitness for a particular purpose and non-infringement. This does not apply to any warranty or guarantee that cannot be excluded under the law that applies to you.
11. Limitation of liability
To the extent permitted by law, we are not liable for any indirect, incidental, special or consequential loss, or for loss of data, profits or goodwill, arising from your use of the App. Our total liability to you for any claim relating to the App is limited to the amount you paid for the App in the twelve months before the claim, or USD 10 if you paid nothing.
Nothing in these Terms excludes or limits liability for death or personal injury caused by negligence, for fraud, or for any other liability that cannot be excluded or limited by law. If you are a consumer in the European Economic Area, the United Kingdom or another country whose laws do not allow these limitations, they apply to you only as far as those laws allow.
12. Ending these Terms
You can stop using the App at any time by uninstalling it. If you seriously or repeatedly break these Terms, for example by using the App with content you do not legally own, your licence to use the App ends. Sections 3, 4, 10, 11, 13 and 14 continue to apply after these Terms end.
13. Governing law
These Terms are governed by the laws of the State of Florida, United States, and by applicable US federal law, without regard to conflict-of-law rules. If you are a consumer, you also keep the protection of the mandatory laws of the country where you live.
14. Resolving disputes
Contact us first. Before starting any court proceedings, email [email protected] with a description of the dispute and the outcome you want. We will both try in good faith to resolve it within 60 days of your email. We will do the same before starting proceedings against you.
Small claims. Either of us may bring an individual claim in a small claims court where you live, if the claim qualifies.
Courts. Any other dispute arising from or relating to these Terms or the App will be heard exclusively by the state or federal courts located in Miami-Dade County, Florida, and you and we consent to the jurisdiction of those courts. If you are a consumer, you may also bring a claim in the courts of the country where you live, where its law gives you that right.
No jury trial. To the extent permitted by law, you and we waive any right to a jury trial in any dispute arising from or relating to these Terms or the App.
No class actions. To the extent permitted by law, you and we may bring claims against each other only individually, and not as a plaintiff or class member in any class, collective, consolidated or representative proceeding. If you live in the European Economic Area, the United Kingdom or Switzerland, this does not limit any right you have to collective redress under the law of the country where you live.
15. Changes to these Terms
We may update these Terms, for example when the App or the law changes. The current version is always published at lsx4.app/terms, and the date at the top shows when it was last updated. If a change materially affects your rights, we will give notice on this page or in the App before it takes effect. If you keep using the App after the change takes effect, the updated Terms apply.