Is forcing subscription potentially a good or a bad idea post-IDFA?

A number of apps have explored the subscription model post-ATT / post-IDFA. It can make sense for a few reasons:
- Many subscription apps drive monetization through a web-based onboarding flow, which retains much more ad-specific information than an app onboarding
- Subscribers are more likely to provide contact information, such as an email address, that can be used for re-marketing or other out-of-app forms of contact
- In success, subscriptions create stable, predictable cash flows that can lead to attractive unit economics.

That said, subscriptions can be challenging to implement and optimize. Subscriptions are certainly no magic solutions to the distribution problems introduced with ATT.