We don't want to be perceived as cheap, but super expensive isn't our plan either. We're free for companies below $10K MRR, then charge on subscriber volumes. We can offer custom pricing to high-volume/low-margin businesses, feel free to reach out if you'd like to discuss nick [at] chartmogul.com
We're planning to add forecasting to our SaaS analytics product (https://chartmogul.com) later this year, I'm going to look and see if we can use this in our product now.