Zenserp is described as 'Having to collect SERPs programmatically is a very common challenge for developers. In our opinion, this task should be easy to complete by using a comprehensive Google Search API. This is what Zenserp offers'. There are four alternatives to Zenserp for a variety of platforms, including Online / Web-based, SaaS, Windows, SERPMaster and Android. The best alternative is SERPMaster, which is free. Other great apps like Zenserp are SerpApi (Paid), Serpentine.io (Paid) and SerpWow.com - Google Search Results API (Paid).