License terms

Last updated: November 2026

This is a translation for your convenience. The German version is legally binding; you find it with the DE button at the top.

§ 1 Scope and provider

(1) These terms govern the use of the Quershare software ("app") and its paid extension Quershare Infinite ("Infinite") on all platforms. The provider is:

Yannick Papenfuß IT-Service
Owner: Yannick Papenfuß
Kaiserin-Augusta-Allee 34 A
10589 Berlin
Germany
kontakt@y-pp.de

(2) By installing or using the app you accept these terms.

§ 2 Free use

(1) The app may be used free of charge, privately and for work. Without Infinite you can send up to 10 files with up to 300 MB in total per send and be a member of up to 2 groups at a time. Receiving is not limited.

(2) There is no entitlement to particular features, to constant availability or to further development of the free version.

§ 3 Buying Quershare Infinite

(1) Infinite is a one-time purchase, not a subscription.

(2) Buying on the website: the seller is our reseller Paddle.com Market Limited ("Paddle") as Merchant of Record. The purchase contract, including payment, invoicing, VAT and the statutory right of withdrawal, is concluded with Paddle; Paddle's buyer terms apply to it. You receive the license key by email.

(3) Buying on Google Play: in the Android app from the Play Store you buy Infinite through Google Play; Google Play's terms apply. The app activates Infinite by itself after the purchase.

(4) Buying in the App Store: in the app from Apple's App Store you buy Infinite in the App Store. The seller is Apple; the Apple Media Services Terms and Conditions apply, and to the app itself also Apple's standard End User License Agreement. The app activates Infinite by itself after the purchase, and on your other devices with the same Apple Account. There, Infinite can only be unlocked through the App Store, not with a license key.

(5) With the purchase I grant you the license under § 4.

§ 4 Scope of the license

(1) You receive the simple, non-transferable and non-sublicensable right to use Infinite on up to 5 devices at a time that you own or that are used by you or your employees. You can remove devices in the app and replace them with others.

(2) For more devices you need more licenses, one for every 5 devices. This applies to individuals and companies alike. In the App Store, Infinite can only be bought once per Apple Account; if you need more devices there, write to me.

(3) You may not pass on or publish license keys.

(4) Infinite applies to the major version of the app that is current when you buy it (for example 1.x), with all its minor versions and updates, and to all older versions. If the next major version (for example 2.0) is released within 365 days after your purchase, Infinite also applies to it and all its minor versions. Later major versions need a new license. What counts are the day of purchase and the day a major version is released.

(5) I release new major versions at most once within 365 days. If a major version is nevertheless released within 365 days of the previous one, every license that covers the previous major version automatically covers the new one and all its minor versions as well. The same applies to every further major version released within 365 days of its predecessor.

(6) There is no entitlement to new features or further development; statutory update obligations remain unaffected.

(7) The app is protected by copyright. You may not circumvent the license check, decompile or modify the app, except where the law (in particular § 69e of the German Copyright Act) expressly allows it.

§ 5 Activation and license server

(1) To activate Infinite, the device needs an internet connection to my license server once. After that the app checks the license on the device, also offline. While the device is online, the app renews the license at most once a week.

(2) If I shut down the license server, I will first publish a version of the app in which Infinite is permanently unlocked without the license server.

§ 6 Revoking a license

(1) I may revoke a license if

the purchase price was refunded or charged back, or
the license key was passed on or published contrary to § 4.

(2) In case 2 I will inform you by email beforehand, if I know your address, and give you the opportunity to respond; this does not apply if the key was spread publicly.

(3) A revoked license can no longer be activated. Devices on which it is active lose Infinite at their next renewal, and at the latest with the next version of the app.

§ 7 Refunds and withdrawal

(1) Independently of statutory rights, we refund the full purchase price on request if you contact us within 14 days of the purchase; see Refunds. The license is revoked afterwards (§ 6).

(2) For a purchase in the App Store, Apple decides on refunds; I can't make them myself. Paragraph 1 doesn't apply to it; how to request a refund from Apple is explained under Refunds.

(3) Your statutory right of withdrawal as a consumer is governed by the seller's terms (Paddle, Google or Apple, § 3).

§ 8 Your responsibility

You are responsible for what you share with the app, for whom you share groups with, and for respecting the rights of others and applicable law. Keep your groups' passwords and invites secret: anyone who knows them can join the group.

§ 9 Defects

(1) I provide the free version free of charge. For it, I am only liable for defects that I fraudulently concealed.

(2) For Infinite, the statutory rights regarding defects exist against the seller (§ 3). These terms do not affect them.

§ 10 Liability

(1) I am liable without limitation for intent and gross negligence, for injury to life, body or health, under the German Product Liability Act, and to the extent of any guarantee given.

(2) For slight negligence in connection with Infinite, I am only liable for breaches of essential contractual obligations – those whose fulfilment makes the proper performance of the contract possible in the first place and on whose observance you may regularly rely – and limited to the damage typical for the contract and foreseeable.

(3) For the free version I am only liable for intent and gross negligence and under paragraph 1.

(4) In the cases of paragraphs 2 and 3, my liability for loss of data is limited to the effort that would have been needed to restore it from regular backups.

§ 11 Privacy

How I handle personal data is described in the privacy policy.

§ 12 Changes

I may change these terms for the future, for instance when the app or the law changes. This does not reduce the scope of a license already bought (§§ 4 and 5). I announce significant changes on this website and in the app.

§ 13 Final provisions

(1) The law of the Federal Republic of Germany applies, excluding the UN Convention on Contracts for the International Sale of Goods. If you are a consumer, the mandatory consumer protection rules of the country of your habitual residence remain unaffected.

(2) If you are a merchant, a legal entity under public law or a special fund under public law, the place of jurisdiction is Berlin.

(3) If a provision is invalid, the others remain valid.

(4) The German version of these terms is authoritative; the English one is a translation.