CollectLean is described as 'The accounts receivable automation platform built specifically for SMBs and agencies. Finance teams waste 10–15 hours every week manually chasing late payments. CollectLean solves this by automating the entire follow-up process' and is an website. There are three alternatives to CollectLean, not only websites but also apps for SaaS. The best CollectLean alternative is CarolCollect by Captira. Other great sites and apps similar to CollectLean are Upflow Outstanding Invoice Manager and Billabex.