Yes, both Hex.tech and Hal9 offer a Free Trial.
Pricing for Hex.tech Starts at $36/month whereas for Hal9 Starts at $200/month.
Hex.tech offers several advantages, including Assists within SQL and Python, Understands schemas and context, Auto-completes SQL joins, Generates complex date filters, Streamlines query writing and many more functionalities.
The cons of Hex.tech may include a Public beta: stability issues, Limited to SQL, Python, R. and No mention of mobile support
Hal9 offers several advantages, including Multi-language backend support, Seamless existing data connection, Requires no web development knowledge, Provides code assets for fine-tuning, Multiple science and engineering runtimes and many more functionalities.
The cons of Hal9 may include a Minimal APIs, In-development support for certain languages, Requires web developers for optimization, Compliance setup needed for privacy. and Trial version not directly accessible