Panorama X

Panorama X was a ground-up overhaul of the original Mac database software from ProVUE Development, debuting in 2017 after five years of development and testing.
  While Panorama X retains the blindingly fast, RAM-based architecture of the classic version and its rich feature set (including programmability), the rewrite brought an all-new, native Mac interface plus innovative, multi-level universal Undo, Unicode support, AES-256 encryption, distance calculations (using latitude/longitude or zip codes); OS X Notifications, JSON support, timers, background (and web page) downloads, automatic memory allocation, 64-bit code to handle very large databases, and many more improvements, including AppleScript support, charts, summary tables and crosstabs (with Summary Workshop and Crosstab Workshop “wizards”), multi-page and variable-height printing, and more. (See ProVUE’s comprehensive documentation for all the details.) The most recent version brought a few improvements, including a chart fix for macOS Mojave, but the software has been notably stable and reliable. A server version is in development.
  Panorama X 10.1.5, which runs on OS X 10.9 and up (including macOS 10.14 Mojave), uses a unique pricing model that ranges from $0 to $15/month per user, depending on usage, with free updates. Unlike Adobe’s subscription scheme, Panorama X continues to function even if you stop paying (and you can still access your data), nor are you charged if you’re not actively using the software. The system works by periodically phoning home to a ProVUE server with identification and usage data (see Panorama X FAQ).

Panorama X takes a new flexible approach to software subscriptions. Unlike a traditional subscription, you only pay for months when you actually use the software. If you don’t use it every month, you don’t pay every month. Unused credits don’t expire, so if you pre-pay for a year, and only use Panorama part time, those credits may actually last for two years or more.
… Panorama X needs to periodically contact the ProVUE server to monitor usage and maintain account security.
… Panorama will never hold your data hostage. If a payment is due, Panorama X will politely request that you make the payment. If you decline, it will keep asking periodically until the payment is made. You can continue working between requests. If you no longer wish to use Panorama X this will give you an opportunity to export your data without making any additional payment.