One key difference is due to non-standard data formats and features, software has a far greater lock in. Cell phones might drop 90% of their "recurring" custome

One key difference is due to non-standard data formats and features, software has a far greater lock in. Cell phones might drop 90% of their "recurring" customers over 3 years, but that's because the phone number goes with the client and there isn't much of a down side. With something like an accounting app or a CRM there is often way too much work to move to a new system, so the churn rates are smaller and the profit margins higher.