Strell offers Free Trial, but SoloSEO does not.
Strell is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
SoloSEO is designed for Medium Business and Small Business.
Pricing for Strell Starts at $12.99/Month when Billed Yearly whereas for SoloSEO Starts at $19/Month.
Some top alternatives to Strell includes Ahrefs, SE Ranking, SEO Scout, SoloSEO, NinjaSEO by 500apps, TheCompleteSEO, Robinize, SEOcrawl and RankIQ.
Some top alternatives to SoloSEO includes WebCEO, Ahrefs, SE Ranking, SerpYou, SEO Explorer, SEO-Checker.io, SEO Audit Software, SEO Tester Online, SEOcrawl and SerpMaze.