Licence terms
Last updated: 13 November 2026
This is a translation for your convenience. The German version is legally binding.
These terms govern the use of the Perfora software. The software is provided by RVS Software, Ronald von Schlegell, Paderborn, Germany.
1. Purchase and contracting party
Licences are sold via Lemon Squeezy. Lemon Squeezy is the seller (merchant of record) and your contracting party for purchase, payment, invoicing, taxes and any right of withdrawal; the Lemon Squeezy terms apply to these. These licence terms apply to the use of the software.
2. Trial period
After installation, Perfora can be used free of charge with all features for 14 days. After that, documents can still be opened and viewed; saving requires a licence.
3. Right of use
By purchasing a licence you receive a simple, non-transferable and perpetual right to install and use Perfora on the number of devices stated at purchase, for private or business purposes. Keep the licence key confidential and do not pass it on to third parties. Activations can be deactivated in the app to move the licence to another device.
4. Licence check
Perfora needs an internet connection to activate the licence and to check it occasionally. An activated licence remains valid for 30 days without a connection. The privacy policy explains which data is transmitted.
5. Restrictions
You may not rent out or resell the software, circumvent the licence check, or decompile or modify the software unless expressly permitted by law.
6. Warranty
The statutory rights in the event of defects apply. Check the preview before saving; Perfora does not change the source file and never overwrites existing files without asking. You are responsible for backing up your data.
7. Liability
We are liable without limitation for intent and gross negligence, for injury to life, body or health and under the German Product Liability Act. For slightly negligent breaches of essential contractual obligations, liability is limited to the foreseeable damage typical for the contract. Otherwise, liability for slight negligence is excluded.
8. Final provisions
The law of the Federal Republic of Germany applies, excluding the UN Convention on Contracts for the International Sale of Goods. For consumers, this choice of law applies only insofar as it does not deprive them of the protection of mandatory provisions of the country of their habitual residence.