HelioBLAST is described as 'uses our super-fast search engine, and this service is provided to demonstrate what can be done using text similarity searching'. There are more than 10 alternatives to HelioBLAST, not only websites but also apps for a variety of platforms, including Windows, Mac, Android and Blackberry. The best alternative is SEO Tools Centre, which is free. Other great sites and apps similar to HelioBLAST are Unicheck (Paid), iThenticate (Paid), Viper (Paid) and PlagiarismSearch (Paid).
SEO Tools Centre provides SEO checker services for websites. Here you will find different types of SEO tools: backlink checker, article rewriter, keyword position checker and many others useful services!.
Professional online plagiarism checker for students, teachers, writers and editors. Advanced plagiarism detection system guarantees most accurate scanning results. The tool accepts all text formats and has additional services of professional rewriting, editing, and proofreading.
Oxford similarity checker (OxSiC) is a professional plagiarism checker designed for bloggers, teams and individuals. This tool has very attractive pricing model charging only 1c per 100 words checked, what makes it the best priced plagiarism checking tool on the market.
Turnitin is an Internet-based plagiarism-detection service created by iParadigms, LLC. It prevents plagiarism by using a proprietary algorithm to compare submitted papers to papers within its own database and several other large academic databases.
Professional plagiarism checker that reviews over 14 trillion web pages, articles, books, and periodicals to help you detect possible plagiarism in your papers. It finds not only copy paste plagiarism, but paraphrasing, good and bad citations.