merkapp.de

What it is

merkapp is a reminder tool for personal contracts, deadlines, and everyday life admin. It is not positioned as an enterprise contract management system; instead, it helps users keep track of things that are easy to miss, such as mobile phone contracts, DSL, electricity and gas, insurance, TÜV inspections, tax filings, document expirations, birthdays, and private notes. The product is provided by Germany-based INREMA Unternehmensberatung GmbH, hosted in Germany, and can be used via a browser, as a Progressive Web App, or as a mobile app.

Core features and experience

Its core modules cover contracts, subscriptions and tariffs, insurance, deadlines, documents, birthdays, notes, and reminders. For contract entries, if the provider or tariff is already in the list, the system can pre-fill the minimum term and cancellation notice period, then automatically calculate when the user needs to take action. Contracts not included in the list can also be entered manually. Reminders can be configured per item with a lead time and delivery channel, supporting push notifications, in-app reminders, and email. For recurring items such as TÜV inspections, it also supports repeat reminders and overdue marking.

Pricing and limits

The main text states clearly that merkapp is completely free, with no subscription, fees, ads, trial period, or paywall. Registration only requires an email address and does not require a bank card. Its fair-use limit is up to 500 records per account, which should be sufficient for typical personal or household life management, but it is not suited to high-frequency or more organized usage.

Security, compliance, and deployment

Security is one of the areas the product emphasizes most: its servers are located in ISO 27001-certified data centers in Germany, transmission uses TLS 1.3, data at rest is protected with AES-256, backups are encrypted, and IP addresses and User-Agent strings are hashed before storage. The product only requires an email address, and it provides self-service account deletion and data export, corresponding to GDPR Art. 17 and Art. 20. The text also states that there are no third-country data transfers. Deployment is cloud-based, with no mention of self-hosting.

Limitations and ideal users

The main limitations are weak collaboration and integration capabilities: the product is explicitly single-user and does not support shared items. It currently does not support Google or iCloud calendar sync, and single-item ICS export is planned for 2027. There is also no visible information about APIs or developer support. As a result, it is suitable for users who care about privacy and want a free way to manage personal contracts and life deadlines, but not for enterprise contract lifecycle management, team-based permissions and approvals, or deep system integration scenarios.

Access from China

The main text does not provide information on access from mainland China, payment, or localization, so actual connectivity is unknown. Since the product is free and does not require payment, the payment barrier is low. However, if Chinese language support, local services, or stable domestic network access are required, alternatives such as Google/Apple Calendar, Microsoft To Do, Todoist, or 滴答清单 may be worth considering.