Open Core — SaaS tools & trends 2026

4 products Sparkpulse tracks are shipping around open core. The highest-velocity open core products right now are Windmill, ApexCharts and Prowler (ranked by Sparkpulse's velocity score). The theme runs across 2 sectors, so the momentum you see here is drawn from products competing in different corners of the market. Their velocity scores span 0.0 to 8.8 out of 10, a spread that shows how unevenly shipping cadence is distributed across the field. Below: every tracked product carrying this theme, updated from release data. Everything on this page is regenerated from verified release data, so the ranking reflects the latest changelogs rather than a static list.