Yes, both Ask Command and Kvery offer a Free Trial.
Pricing for Ask Command Starts at $5/month whereas for Kvery Starts at $89.9/month.
Ask Command offers several advantages, including Sandboxed macOS app, Only suggests commands, Understands basic logic/conditions, Provides best command, Saves browsing/search time and many more functionalities.
The cons of Ask Command may include a macOS only, Not open source, User-entered data recorded, Beta version expiry. and Dependent on server-side processing
Kvery offers several advantages, including Simplifies SQL queries, User-friendly design, Interactive IDE, Optimized SQL code, Multi-database support and many more functionalities.
The cons of Kvery may include a Requires JavaScript to run, May not support all SQL database systems, No mention of mobile support, Web-based: Internet dependency. and No offline version available