happn vs Pen Journal
A side-by-side look at happn and Pen Journal. For an in-depth review of either product, follow the links below.
happn
Development
happn is an open-source, scalable pub/sub and data synchronization engine designed for high-performance real-time web and IoT applications. It enables rapid development of collaborative and distributed systems by handling data synchronization, messaging, and eventing.
pubsubdata-syncrealtimescalable
Pen Journal
Office & Productivity
Pen Journal is a minimalist journaling app that focuses on freeform writing with pen and paper styled vectors. It provides a simple, distraction-free interface for journaling privately on your device.
journalwritingnotespenminimalistprivate
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