Best Public Key Infrastructure (PKI) Apps for iPad of 2025

Transitioning paper-based processes to digital formats can lead to considerable reductions in costs. It is essential for certain documents to maintain traceability, accountability, and audit trails, ensuring they carry legal significance, data integrity, and individual signed consent, while also providing accessible evidence of workflow processes. SigningHub facilitates rapid and efficient online approval for a variety of business documents, including agreements, reports, requests, and packages. This platform accommodates basic e-Signatures, Advanced e-Signatures, and EU Qualified Signatures. To guarantee that a document remains unchanged from the moment it is signed, employing cryptographic digital signatures is the optimal solution. Organizations must demonstrate that their internal controls are robust and comply with local laws and regulations. For many years, Ascertia has been a trusted provider of top-tier PKI products. By integrating this expertise, SigningHub offers a comprehensive and secure solution for document signing, ensuring organizations can meet both security and compliance needs effectively. Ultimately, this digital transformation not only enhances efficiency but also strengthens trust in the documentation process.

4identity is an innovative technological solution created by Bit4id that enhances web applications with capabilities for Digital Signature and Authentication. This platform operates without the need for Java Applets or any external add-ons. Its simplicity ensures compatibility across various web browsers and major operating systems. The “integration-less” Engine facilitates the addition of Digital Signature and Strong Authentication features to web applications via an easy-to-use API. With 4identity, users experience seamless functionality, highlighted by a “1-click signing” feature that enhances usability. Bit4id boasts a wealth of expertise in software development and tools for security and digital identity management utilizing Public Key Infrastructure (PKI). The company manages over 10 million digital identities and handles more than 50 million digital signatures annually, positioning itself as a leader in innovation within the PKI and digital identity sectors in both Europe and Latin America. Additionally, Bit4id's commitment to advancing digital identity solutions continues to drive growth and development in this critical field.

Forward-thinking organizations that prioritize high levels of availability and reliability utilize Nebula to manage their networks. After extensive research and development, Slack has made this project open-source following its successful large-scale implementation. Nebula is designed to be a lightweight service that can be easily distributed and configured across contemporary operating systems. It is compatible with various hardware architectures, including x86, arm, mips, and ppc. In contrast to conventional VPNs, which often suffer from availability and performance issues, Nebula offers a more efficient solution. Its decentralized structure enables the creation of encrypted tunnels on a per-host basis, activated as needed. Developed by experts in security, Nebula employs trusted cryptographic libraries, features an integrated firewall with detailed security groups, and incorporates the most effective elements of public key infrastructure for host authentication. This combination of features ensures a robust and flexible networking environment for modern demands.

SeaCat is a comprehensive cyber-security and data privacy platform designed specifically for mobile and IoT applications, ensuring that users can build and operate their apps without encountering any cyber-security incidents. Developed by a team of experts, SeaCat includes all essential features for robust cyber-security and data privacy, enabling a seamless deployment process. With SeaCat, users can enhance their security levels immediately without the need for any custom development work. Importantly, this platform prioritizes user experience, eliminating the need for complicated configurations or procedures. SeaCat incorporates state-of-the-art security measures, including biometric authentication and hardware security modules, making it a modern choice for developers. The platform comprises three key components: the SeaCat SDK, which integrates into mobile or IoT applications; the SeaCat Gateway, which is installed in the demilitarized zone (DMZ) in front of backend servers; and the SeaCat PKI service, which facilitates enrollment, access, and identity management. By utilizing SeaCat, users can confidently protect their applications while focusing on delivering a smooth user experience.