There are several things that make Under the Radar different from other trendspotting services.

First, most trendspotting services include a lot of trend signals that either aren't growing quickly or that everyone already knows about. Under the Radar avoids this by using manual and automated filters to cut out all the fluff.

Second, the algorithms do not just perform a random walk in keyword space. Instead, they also scan a preselected set of high-quality sources. This includes sources like rapidly-growing Subreddits, Pinterest trends, GitHub repositories, Product Hunt launches, Amazon listings, Shopify stores, and SaaS businesses.

Third, not just rising but also rapidly declining trends are covered. After all, the observation that interest in a specific SaaS tool is dwindling can be just as interesting as a hot new app that's taking off right now.

Finally, Under the Radar is priced at $19/month, which is much cheaper than other trendspotting services.